Department of Aeronautics & Astronautics

Department of Aeronautics & Astronautics
AFIT Faculty: Marina B. Ruggles-Wrenn
CONTACT INFORMATION
Name: Marina B. Ruggles-Wrenn
Title: Professor of Aerospace Engineering
Commercial Phone: (937) 255-3636 (4641)
DSN Phone: 785-3636 (4641)
EDUCATION

PhD Mechanical Engineering, Rensselaer Polytechnic Institute, 1987

MS Mechanics, Rensselaer Polytechnic Institute, 1983

BS Mechanical Engineering, Polytechnic Institute of New York, 1981

RESEARCH INTERESTS

Mechanics of materials and structures

Experimental investigation of time-dependent material behavior

High-temperature structural materials

Advanced composite materials

High-temperature structural design methods

Viscoplasticity

Fatigue and fracture

EXPERTISE
  • STRUCTURAL MECHANICS
  • STRUCTURES AND MATERIALS
PUBLICATIONS & RESEARCH PAPERS

 

Peer-Reviewed Technical Papers (Archival Journals)
 
1.     Zheng Yuan, M. B. Ruggles-Wrenn and J. Fish, “Computational Viscoplasticity Based on Overstress (VBO) Model”, International Journal for Computational Methods in Engineering Science and Mechanics, in press.
2.     M. B. Ruggles-Wrenn and M. T. Pope, “Creep behavior in interlaminar shear of a SiC/SiC ceramic composite with a self-healing matrix”, Applied Composite Materials, in press.
3.     R. S. Hay, C. J. Armani, M. B. Ruggles-Wrenn and G. E. Fair, “Creep mechanisms and microstructure evolution of Nextel™610 fiber in air and steam”, Journal of the European Ceramic Society, in press.
4.     C. J. Armani, M. B. Ruggles-Wrenn, R. S. Hay, G. E. Fair and K. A. Keller, “Creep of polycrystalline yttrium aluminum garnet (YAG) at elevated temperature in air and in steam”, Materials Science and Engineering A, Vol. 589, 2014, pp. 125-131.
5.     M. B. Ruggles-Wrenn and G. Kurtz, “Notch sensitivity of fatigue behavior of a Hi-Nicalon™/SiC-B4C composite at 1200 °C in air and in steam”, Applied Composite Materials, Vol. 20, 2013, pp. 891-905.
6.     C. J. Armani, M. B. Ruggles-Wrenn, R. S. Hay and G. E. Fair, “Creep and microstructure of Nextel™720 fiber at elevated temperature in air and in steam”, Acta Materialia, Vol. 61, 2013, pp. 6114-6124.
7.     C. J. Armani, M. B. Ruggles-Wrenn, G. E. Fair and R. S. Hay, “Creep of Nextel™610 fiber at 1100 °C in air and in steam”, International Journal of Applied Ceramic Technology, Vol. 10, No. 2, 2013, pp. 276-284.
8.     M. B. Ruggles-Wrenn and T. P. Jones, “Tension-compression fatigue behavior of a SiC/SiC ceramic matrix composite at 1200 °C in air and in steam”, International Journal of Fatigue, Vol. 47, 2013, pp. 154-160.
9.     C. E. C. Ryther and M. B. Ruggles-Wrenn, “The rate (time) – dependent mechanical behavior of the PMR-15 thermoset polymer at temperatures in the 274-316 °C range: experiments and modeling”, Journal of Pressure Vessel Technology, Transactions ASME, Vol. 134, No. 6, December 2012, pp. 061404-1 - 061404-8.
10. M. B. Ruggles-Wrenn and T. P. Jones, “Tension-compression fatigue of a SiC/SiC ceramic matrix composite at elevated temperature”, Journal of Engineering for Gas Turbines and Power, Transactions ASME, Vol. 134, No. 9, September 2012, pp. 091301-1 - 091301-6.
11. M. B. Ruggles-Wrenn, J. Delapasse, A. L. Chamberlain, J. E. Lane, and T. S. Cook, “Fatigue behavior of a Hi-Nicalon™/SiC-B4C composite at 1200 °C in air and in steam”, Materials Science and Engineering A, Vol. 534, 2012, pp. 119-128.
12. M. B. Ruggles-Wrenn and V. Sharma, “Effects of steam environment on fatigue behavior of two SiC/[SiC+Si3N4] ceramic composites at 1300 ºC”, Applied Composite Materials, Vol. 18, No. 5, 2011, pp. 385-396.
13. M. B. Ruggles-Wrenn, D. T. Christensen, A. L. Chamberlain, J. E. Lane, and T. S. Cook, “Effect of frequency and environment on fatigue behavior of a CVI SiC/SiC ceramic matrix composite at 1200 °C”, Composites Science and Technology, Vol. 71, No. 2, 2011, pp. 190-196.
14. M. B. Ruggles-Wrenn and B. A. Whiting, “Cyclic creep and recovery behavior of Nextel™720/alumina ceramic composite at 1200 °C”, Materials Science and Engineering A, Vol. 528, 2010, pp. 1848-1856.
15. M. B. Ruggles-Wrenn and T. Kutsal, “Effects of steam environment on creep behavior of Nextel™720/alumina-mullite ceramic composite at elevated temperature”, Composites Part A: Applied Science and Manufacturing, Vol. 41, 2010, pp. 1807-1816.
16. M. B. Ruggles-Wrenn and O. Ozmen, “The rate (time) – dependent mechanical behavior of the PMR-15 thermoset polymer at 316 °C: experiments and modeling”, Journal of Pressure Vessel Technology, Transactions ASME, Vol. 132, No. 4, August 2010, pp. 041403-1 - 041403-6.
17. M. B. Ruggles-Wrenn and M. Ozer, “Creep behavior of Nextel™720/alumina-mullite ceramic composite with ±45° fiber orientation at 1200 ºC”, Materials Science and Engineering A, Vol. 527, 2010, pp. 5326-5334.
18. M. B. Ruggles-Wrenn, T. Yeleser, G. E. Fair and J. B. Davis, “Effects of steam environment on creep behavior of Nextel™610/monazite/alumina composite at 1100 ºC”, Applied Composite Materials, Vol. 16, No. 6, 2009, pp. 379-392.
19. A. J. W. McClung and M. B. Ruggles-Wrenn, “Effect of prior aging at 288 °C in argon environment on time – dependent deformation behavior of a thermoset polymer at elevated temperature. Part 1: experiments”, Journal of Applied Polymer Science, Vol. 114, 2009, pp. 2956-2962.
20. A. J. W. McClung and M. B. Ruggles-Wrenn, “Effect of prior aging at 288 °C in argon environment on time – dependent deformation behavior of a thermoset polymer at elevated temperature. Part 2: modeling with Viscoplasticity Theory Based on Overstress”, Journal of Applied Polymer Science, Vol. 114, 2009, pp. 3389-3395.
21. A. J. W. McClung and M. B. Ruggles-Wrenn, “Strain rate dependence and short-term relaxation behavior of a thermoset polymer at elevated temperature: experiment and modeling”, Journal of Pressure Vessel Technology, Transactions ASME, Vol. 131, No. 3, June 2009, pp. 031405-1 - 031405-8.
22. M. B. Ruggles-Wrenn and C. L. Genelin, “Effects of environment on creep behavior of Nextel™720/alumina-mullite ceramic composite at 1200 ºC”, Composites Science and Technology, Vol. 69, No. 5, 2009, pp. 663-669.
23. C. M. Falcone and M. B. Ruggles-Wrenn, “Rate dependence and short-term creep behavior of a thermoset polymer at elevated temperature”, Journal of Pressure Vessel Technology, Transactions ASME, Vol. 131, No. 1, February 2009, pp. 011403-1 - 011403-8.
24. M. B. Ruggles-Wrenn and J. L. Broeckert, “Effects of prior aging at 288 °C in air and in argon environments on creep response of PMR-15 neat resin”, Journal of Applied Polymer Science, Vol. 111, No. 1, 2009, pp. 228-236.
25. M. B. Ruggles-Wrenn and N. R. Szymczak, “Effects of steam environment on compressive creep behavior of Nextel™720/alumina ceramic composite at 1200 °C”, Composites Part A: Applied Science and Manufacturing, Vol. 39, 2008, pp. 1829-1837.
26. M. B. Ruggles-Wrenn, P. Koutsoukos, S. S. Baek, “Effects of environment on creep behavior of two oxide-oxide ceramic matrix composites at 1200 °C”, Journal of Materials Science, Vol. 43, No. 20, 2008, pp. 6734-6746.
27. M. B. Ruggles-Wrenn and J. C. Braun, “Effects of steam environment on creep behavior of Nextel™720/alumina ceramic composite at elevated temperature”, Materials Science and Engineering A, Vol. 497, No. 1-2, 2008, pp. 101-110.
28. A. J. W. McClung and M. B. Ruggles-Wrenn, “The rate (time) – dependent mechanical behavior of the PMR-15 thermoset polymer at elevated temperature”, Polymer Testing, Vol. 27, 2008, pp. 908-914.
29. M. B. Ruggles-Wrenn, A. T. Radzicki, S. S. Baek, K. A. Keller, “Effect of loading rate on the monotonic tensile behavior and tensile strength of oxide-oxide ceramic matrix composite at 1200 °C”, Materials Science and Engineering A, Vol. 492, No. 1-2, 2008, pp. 88-94.
30. M. B. Ruggles-Wrenn and P. D. Laffey, “Creep behavior in interlaminar shear of NextelTM720/alumina ceramic composite at elevated temperature in air and in steam”, Composites Science and Technology, Vol. 68, No. 10-11, 2008, pp. 2260-2266.
31. M. B. Ruggles-Wrenn, G. T. Siegert, S. S. Baek, “Creep behavior of Nextel™720/alumina ceramic composite with ±45° fiber orientation at 1200 °C”, Composites Science and Technology, Vol. 68, No. 6, 2008, pp. 1588-1595.
32. M. B. Ruggles-Wrenn and J. G. Balaconis, “Some aspects of the mechanical response of BMI 5250-4 neat resin at 191ºc: experiment and modeling”, Journal of Applied Polymer Science, Vol. 107, No. 3, 2008, pp. 1378-1386.
33. M. B. Ruggles-Wrenn, G. Hetrick, S. S. Baek, “Effects of frequency and environment on fatigue behavior of an oxide-oxide ceramic composite at 1200 °C”, International Journal of Fatigue, Vol. 30, No. 3, 2008, pp. 502-516.
34. P. R. Jackson, M. B. Ruggles-Wrenn, S. S. Baek, K. A. Keller, “Compressive creep behavior of an oxide-oxide ceramic composite with monazite fiber coating at elevated temperatures”, Materials Science and Engineering A, Vol. 454-455, 2007, pp. 590-601.
35. J. Mehrman, M. B. Ruggles-Wrenn, S. S. Baek, “Influence of hold times on the elevated-temperature fatigue behavior of an oxide-oxide ceramic composite in air and in steam environment”, Composites Science and Technology, Vol. 67, No. 7-8, 2007, pp. 1425-38.
36. M. B. Ruggles-Wrenn, S. S. Musil, S. Mall, K. A. Keller, “Creep behavior of NextelTM610/ monazite/alumina composite at elevated temperatures”, Composites Science and Technology, Vol. 66, No. 13, 2006, pp. 2089-2099.
37. M. B. Ruggles-Wrenn, S. Mall, C. A. Eber, L. B. Harlan, “Effects of steam environment on high-temperature mechanical behavior of NextelTM720/alumina (N720/A) continuous fiber ceramic composite”, Composites Part A: Applied Science and Manufacturing, Vol. 37, No. 11, 2006, pp. 2029-2040.
38. C. A. Eber, M. B. Ruggles-Wrenn, S. Mall, “Fatigue behavior of NextelTM720/alumina (N720/A) continuous fiber ceramic composite – effects of temperature and steam environment”, Ceramic Transactions, Vol. 175, 2005, pp. 135-149.
39. L. B. Harlan, M. B. Ruggles-Wrenn, S. Mall, “Creep-rupture behavior of NextelTM720/ alumina (N720/A) continuous fiber ceramic composite – effects of temperature and steam environment”, Ceramic Transactions, Vol. 175, 2005, pp. 169-180.
40. M. B. Ruggles-Wrenn, J. M. Corum, and R. L. Battiste, “Short-term static and cyclic behavior of two automotive carbon-fiber composites”, Composites Part A: Applied Science and Manufacturing, Vol. 34, No. 8, 2003, pp. 731-741.
41. D. N. Robinson, W. K. Binienda, and M. B. Ruggles, “Creep of polymer matrix composites, Part 1 – A Norton/Bailey creep law for transverse isotropy”, Journal of Engineering Mechanics, Vol. 129, No. 3, 2003, pp. 310-317.
42. W. K. Binienda, D.N. Robinson, and M. B. Ruggles, “Creep of polymer matrix composites, Part 2 – A Monkman-Grant failure relationship for transverse isotropy”, Journal of Engineering Mechanics, Vol. 129, No. 3, 2003, pp. 318-323.
43. J. M. Corum, R. L. Battiste, and M. B. Ruggles-Wrenn, “Low-energy impact effects on candidate automotive structural composites”, Composites Science and Technology, Vol. 63, No. 6, 2003, pp. 755-769.
44. J. M. Corum, R. L. Battiste, M. B. Ruggles and W. Ren, “Durability-based design criteria for a chopped-glass-fiber automotive structural composite”, Composites Science and Technology, Vol. 61, No. 8, 2001, pp. 1083-1095.
45. M. B. Ruggles, “Experimental investigation of uniaxial and biaxial rate dependent behavior of a discontinuous MMC at 538° C”, Composites Science and Technology, Vol. 57, No. 3, 1997, pp. 307-318.
46. M. B. Ruggles, S. Cheng, and E. Krempl, “The Rate-dependent mechanical behavior of modified 9wt.%Cr-1wt.%Mo steel at 538°C”, Materials Science and Engineering, A186, 1994, pp. 15-21.
47. R. A. Ainsworth, M. B. Ruggles, and Y. Takahashi, “Flaw assessment procedure for high-temperature reactor components”, Journal of Pressure Vessel Technology, Transactions ASME, Vol. 114, 1992, pp. 166-170.
48. M. B. Ruggles and E. Krempl, “Rate-sensitivity and short term relaxation behavior of AISI type 304 stainless steel at room temperature and at 650°C; influence of prior aging”, Journal of Pressure Vessel Technology, Transactions ASME, Vol. 113, 1991, pp. 385-391.
49. M. B. Ruggles and E. Krempl, “The interaction of cyclic hardening and ratcheting for AISI type 304 stainless steel at room temperature. Part I: experiments”, Journal of the Mechanics and Physics of Solids, Vol. 38, No. 4, 1990, pp. 575-585.
50. E. Krempl and M. B. Ruggles, “The interaction of cyclic hardening and ratcheting for AISI type 304 stainless steel at room temperature. Part II: modeling with the Viscoplasticity Theory Based on Overstress”, Journal of the Mechanics and Physics of Solids, Vol. 38, No. 4, 1990, pp. 587-597.
51. M. B. Ruggles and E. Krempl, “The influence of test temperature on the ratcheting behavior of type 304 stainless steel”, Journal of Engineering Materials and Technology, Transactions ASME, Vol. 111, 1989, pp. 378-383.
52. G. G. Trantina and Marina Barishpolsky, “Elastic-plastic analysis of small defects - voids and inclusions”, Journal of Engineering Fracture Mechanics, Vol. 20, No. 1, 1984, pp. 1-10.
53. W. W. Wilkening, H. G. Delorenzi, and Marina Barishpolsky, “Elastic-plastic analyses of surface flaws in reactor vessel”, Journal of Pressure Vessel Technology, Transactions ASME, Vol. 106, No. 3, 1984, pp. 247-254.
 
Peer-Reviewed Papers Appearing in Conference Proceedings
 
1.     M. Pope and M. B. Ruggles-Wrenn, “Creep Behavior in Interlaminar Shear of a Hi-Nicalon/SiC Ceramic Matrix Composite at 1200 °C in Air and in Steam”, Proceedings of the 37th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 27–February 1, 2013.
2.     M. B. Ruggles-Wrenn, B. Steffens and T. Shillig, “Creep Behavior of Hi-Nicalon-S Fiber Tows at Elevated Temperature in Air and in Steam”, Proceedings of the 37th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 27–February 1, 2013.
3.     R. Hay, G. Fair, M. B. Ruggles-Wrenn, and C. Armani, “Microstructural Evolution during Creep Testing of Nextel 610 and Nextel 720 in Air and Steam”, Proceedings of the 37th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 27–February 1, 2013.
4.     R. Hay, G. Fair, M. B. Ruggles-Wrenn, and B. Steffens, “Effects of Stress and Steam on Oxidation Rates of Hi-Nicalon-S SiC Fiber”, Proceedings of the 37th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 27–February 1, 2013.
5.     R. Hay, G. Fair and M. B. Ruggles-Wrenn, “SiC Fiber Strengths after Oxidation in Wet and Dry Air, Steam and Low pO2”, Proceedings of the Materials Science & Technology 2012 Conference and Exhibition, Pittsburgh PA, October 7-11, 2012.
6.     T. P. Jones and M. B. Ruggles-Wrenn, “Tension-Compression Fatigue of a SiC/SiC Ceramic Matrix Composite at Elevated Temperature”, GT2012-68902, Proceedings of ASME Turbo Expo 2012, Copenhagen, Denmark, June 11–15, 2012.
7.     G. Kurtz and M. B. Ruggles-Wrenn, “Notch Sensitivity of Fatigue Behavior of a Hi-Nicalon/SiC Ceramic Composite at 1200 °C in Air and in Steam”, Proceedings of the 36th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 22–27, 2012.
8.     T. P. Jones and M. B. Ruggles-Wrenn, “Tension-Compression Fatigue of a Hi-Nicalon/SiC Ceramic Matrix Composite at 1200 °C in Air and in Steam”, Proceedings of the 36th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 22–27, 2012.
9.     C. E. C. Ryther and M. B. Ruggles-Wrenn, “The Rate (Time) – Dependent Mechanical Behavior of the PMR-15 Thermoset Polymer at Temperatures in the 274-316 °C Range: Experiments and Modeling”, IMECE2011-63117, Proceedings of the 2011 ASME International Mechanical Engineering Congress and Exposition, Denver, CO, November 2011.
10. M. B. Ruggles-Wrenn, “Effects of Environment on Mechanical Behavior of an Oxide-Oxide Ceramic Matrix Composite at Elevated Temperature”, Proceedings of the Materials Science & Technology 2011 Conference and Exhibition, Columbus OH, October 16-20, 2011.
11. M. B. Ruggles-Wrenn, D. T. Christensen, A. Chamberlain, J. Lane, T. Cook “Effect of Steam Environment on Fatigue Behavior of an Advanced SiC/SiC Ceramic Matrix Composite at 1200 °C”, Proceedings of the 7th International Conference on High Temperature Ceramic Matrix Composites (HT-CMC7), Bayreuth, Germany, September 20–22, 2010, pp. 358-364.
12. J. Delapasse and M. B. Ruggles-Wrenn, “Fatigue Behavior of a Hi-Nicalon/SiC Ceramic Matrix Composite at 1200 °C in Air and in Steam”, Proceedings of the 35th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 23–28, 2011.
13. C. J. Armani and M. B. Ruggles-Wrenn, “Creep Behavior of Nextel™610 and Nextel™720 Fiber Tows at Elevated Temperature”, Proceedings of the 35th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 23–28, 2011.
14. C. J. Armani and M. B. Ruggles-Wrenn, “Creep Performance of Polycrystalline YAG in Air and Steam Environments at Elevated Temperatures”, Proceedings of the 35th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 23–28, 2011.
15. M. Ozer and M. B. Ruggles-Wrenn, “Effects of Environment on Creep Behavior of Nextel™720/Alumina-Mullite Ceramic Composite with ±45° Fiber Orientation at 1200 °C”, Proceedings of the 34th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 24–29, 2010.
16. M. B. Ruggles-Wrenn, “Effects of Temperature and Environment on Creep Behavior of two Oxide-Oxide Ceramic Matrix Composites”, Proceedings of the Materials Science & Technology 2009 Conference and Exhibition, Pittsburgh PA, October 25-29, 2009.
17. M. B. Ruggles-Wrenn and B. Whiting, “Cyclic Creep and Recovery Behavior of Nextel™720/Alumina Ceramic Composite at 1200 °C”, Proceedings of the 34th International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 24–29, 2010.
18. T. Yeleser, M. B. Ruggles-Wrenn, G. E. Fair, and J. B. Davis, “Effects of Steam Environment on Creep Behavior of Nextel™610/Alumina Composite at 1100 °C”, Proceedings of the 33rd International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 18 – January 23, 2009.
19. V. Sharma* and M. B. Ruggles-Wrenn, “Effects of Steam Environment on Fatigue Behavior of a SiC/SiNC Ceramic Matrix Composite at 1300 °C”, Proceedings of the 33rd International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach FL, January 18 – January 23, 2009.
20. C. L. Genelin and M. B. Ruggles-Wrenn, “Effects of Environment on Creep Behavior of Nextel™720/Alumina-Mullite Ceramic Composite at 1200 ºC”, Proceedings of the Materials Science and Technology (MS&T) 2008 Conference and Exhibition, Pittsburgh, PA, October 6-9, 2008.
21. A. J. W. McClung and M. B. Ruggles-Wrenn, “Strain Rate Dependence and Short-Term Relaxation Behavior of a Thermoset Polymer at Elevated Temperature: Experiment and Modeling”, Proceedings of the ASME 2008 Pressure Vessel and Piping Conference, Chicago IL, July 27-31, 2008.
22. N. R. Szymczak and M. B. Ruggles-Wrenn, “Compressive Creep Behavior of Nextel™720/Alumina Ceramic Composite at 1200 °C in Air and in Steam Environment”, Proceedings of the 32nd International Conference & Exposition on Advances Ceramics & Composites, Daytona Beach FL, January 27- February 1, 2008.
23. J. C. Braun and M. B. Ruggles-Wrenn, “Effects of Temperature and Environment on Creep Behavior of an Oxide-Oxide Ceramic Composite”, Proceedings of the 32nd International Conference & Exposition on Advances Ceramics & Composites, Daytona Beach FL, January 27- February 1, 2008.
24. G. T. Siegert, M. B. Ruggles-Wrenn, S. S. Baek, “Effects of Environment on Creep Behavior of an Oxide-Oxide Ceramic Composite with ±45° Fiber Orientation at 1200 °C”, Mechanical Properties and Performance of Engineering Ceramics and Composites III, E. Lara-Curzio, J. Salem and D. Zhu, eds., ACERS, Wiley Interscience, 2007, pp. 163-177.
25. G. Hetrick, M. B. Ruggles-Wrenn, S. S. Baek, “Effects of Frequency on Fatigue Behavior of an Oxide-Oxide Ceramic Composite at 1200 °C”, Mechanical Properties and Performance of Engineering Ceramics and Composites III, E. Lara-Curzio, J. Salem and D. Zhu, eds., ACERS, Wiley Interscience, 2007, pp. 119-134.
26. J. M. Mehrman, M. B. Ruggles-Wrenn, S. S. Baek, “Effect of Hold Times on Fatigue Behavior of NextelTM720/Alumina (N720/A) Ceramic Matrix Composite at 1200 °C in Air and in Steam Environment”, Proceedings of the Materials Science and Technology (MS&T) 2006 Conference and Exhibition, Cincinnati, OH, October 2006, Vol. 1, pp. 17-28.
27. M. B. Ruggles-Wrenn, S. S. Musil, S. Mall, K. A. Keller, “Creep-Rupture Behavior of NextelTM610/ Monazite/Alumina Composite at Elevated Temperatures”, Proceedings of the 2005 ASME International Mechanical Engineering Congress and Exposition, Orlando, FL, November 2005, IMECE2005-81993, MD-100, pp. 155-162.
28. J. M. Corum, R. L. Battiste, and M. B. Ruggles-Wrenn, “Durability-Based Design Criteria for a Quasi-Isotropic Carbon Fiber Automotive Composite”, Proceedings of the 34th International SAMPE Technical Conference, Baltimore, MD, November 2002, pp.980-993.
29. J. M. Corum, M. B. Ruggles, and R. L. Battiste, “Effects of Environment on Static and Fatigue Properties of a Crossply Carbon-Fiber Composite”, Proceedings of the SAMPE-ACCE-DOE-SPE Midwest Advanced Materials and Processing Conference, Dearborn, MI, September 2000, pp.134-144.
30. M. B. Ruggles, J. M. Corum, and R. L. Battiste, “Effects of Environment on Uniaxial and Biaxial Properties of an Automotive Composite”, Proceedings of the 1st International SAMPE Automotive Conference, Detroit, MI, September 1999, pp. 42-54.
31. M. B. Ruggles, G. T. Yahr, and R. L. Battiste, “Static Properties and Multiaxial Strength Criterion for Design of Composite Automotive Structures”, Proceedings of the 13th Annual ESD Advanced Composites Conference, Detroit, MI, September 1998.
32. J. M. Corum, R. L. Battiste, C. R. Brinkman, W. Ren, M. B. Ruggles, and G. T. Yahr, “Durability-Based Design Criteria for an Automotive Structural Composite”, Proceedings of the 13th Annual ESD Advanced Composites Conference, Detroit, MI, September 1998. Recipient of best materials paper award.
33. J. M. Corum, R. L. Battiste, and M. B. Ruggles, “Fatigue Behavior and Recommended Design Rules for an Automotive Composite”, Proceedings of the 13th Annual ESD Advanced Composites Conference, Detroit, MI, September 1998.
34. J. H. Zhu, P. K. Liaw, J. M. Corum, and M. B. Ruggles, “Damage Mechanisms of Torsion-Tested Ti-6Al-4V Alloy and TiCp/Ti-6Al-4V Composite”, Proceedings of the TMS J. Weertman’s 70th Birthday Symposium, Anaheim, CA, February 1996.
35. J. M. Corum, H. E. McCoy, M. B. Ruggles, and W. A. Simpson, "Durability of a Continuous Strand Mat Polymeric Composite for Automotive Structural Applications", Proceedings of the 11th Annual Advanced Composites Conference, Dearborn, MI, November 1995.
36. H. M. Herring, D. C. Worley II, P. K. Liaw, R. S. Benson, J. M. Corum, M. B. Ruggles, and H. E. McCoy, “A Study of the Effects of Chemical Environments on the Mechanical Properties of a Swirl Glass Mat Reinforced Polyurethane Composite”, ASME Materials Division, Proceedings of the1995 ASME International Mechanical Engineering Congress and Exposition, Part 1 (of 2), MD vol. 69-1, 1995, pp. 761-771.
37. J. H. Zhu, P. K. Liaw, J. M. Corum, M. B. Ruggles, and H. E. McCoy, “Mechanical Behavior and Damage Mechanisms of Titanium Alloy and Composite”, Micromechanics of Advanced Materials, S. N. G. Chu et al, eds., TMS/ASM 1995 Materials Week, Cleveland, OH, November 1995.
38. M. B. Ruggles, S. Cheng, and E. Krempl, “The Rate (Time) - Dependent Mechanical Behavior of Modified 9Cr-1Mo Steel. I. Experiments at 538° C”, Transactions of the 11th International Conference on Structural Mechanics in Reactor Technology, vol. L, 1991, pp. 145-150.
39. P. S. Majors, E. Krempl, and M. B. Ruggles, “The Rate (Time) - Dependent Mechanical Behavior of Modified 9Cr-1Mo Steel. II. Isothermal Modeling at 538° C Using Viscoplasticity Theory Based on Overstress”, Transactions of the 11th International Conference on Structural Mechanics in Reactor Technology, vol. L, 1991, pp. 157-162.
40. M. B. Ruggles and E. Krempl, “Rate-Sensitivity and Short Term Relaxation Behavior of AISI Type 304 Stainless Steel at Room Temperature and at 650°C; Influence of Prior Aging”, Collection and Uses for Relaxation Data in Design, R. W. Swindeman, Y. Asada, and J. T. Fong, eds., PVP vol. 172, ASME, 1989, pp. 59-68.
41. S. H. Choi, M. B. Ruggles, and E. Krempl, “Orthotropic Viscoplasticity Theory Based on Overstress Applied to Modeling High Temperature Single Crystal Time Dependent Mechanical Behavior”, Proceedings of the Applied Mechanics and Engineering Sciences Conference, Berkeley, CA, 1988.
42. M. B. Ruggles and E. Krempl, “Ratcheting Behavior of Type 304 Stainless Steel at Room and Elevated Temperatures”, Proceedings of MECAMAT, International Seminar on the Inelastic Behavior of Solids: Models and Utilization, 1988, pp. 11.67-11.79.
43. E. Krempl, M. B. Ruggles, and D. Yao, “Viscoplasticity Theory Based on Overstress Applied to Ratcheting”, Advances in Inelastic Analysis - AMD, 88/PED, vol. 28, S. Nakasawa, K. Willam, and N. Rebelo, eds., (Book No. G00408), ASME, 1987, pp. 1-11.
AWARDS & HONORS

 

                        Fellow ASME
2013                ASME, Pressure Vessel and Piping Division, Certificate of Recognition
2012                Best Paper Award – ASME International Gas Turbine Institute 2012 Turbo Expo Technical Conference
2012                ASME Longevity Award – 25 Years
2010                ASME, Pressure Vessel and Piping Division, Certificate of Appreciation
2008                AFIT Instructor of the Quarter Award, AFIT Student Association
2007                Col. Gage H. Crocker Outstanding Professor Award
2006                The American Ceramic Society, Certificate of Recognition and Appreciation
2006                ASME Pressure Vessel and Piping Division, Certificate of Appreciation
2003                ASME Pressure Vessel and Piping Division, 2003 Distinguished Service Award
2003                ASME, Pressure Vessel and Piping Division, Certificate of Recognition
2003                Oak Ridge National Laboratory Technical Achievement Award
2002                ASME, Pressure Vessel and Piping Division, Certificate of Appreciation
1998                      ESD The Engineering Society, Certificate of Appreciation
1998                ESD The Engineering Society, Best Paper - Materials Track, 13th Annual Advanced Composites Conference
1998                      ASME, Pressure Vessel and Piping Division, Certificate of Recognition
1993                Oak Ridge National Laboratory Technical Achievement Award
1990                Oak Ridge National Laboratory Technical Achievement Award
    
COURSES
MECH 500 Fundamentals of Solid Mechanics
MECH 515 Theory of Vibrations
MECH 541 Mechanics of Composite Materials
MECH 545 Aerospace Structural Analysis
MECH 600 Elasticity
MECH 601 Introduction to Time-Dependent Material Behavior
MATL 545 Mechanical Properties of Materials
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