Dwayne D. Arola

Associate Professor
Materials Science & Engineering

Adjunct Associate Professor
Mechanical Engineering

Director, Applied Masters Program (AMP)

  • (206) 685-8158
  • ROB 333


Dwayne Arola received his training in Mechanical Engineering at the University of Washington. In addition to Materials Science and Engineering, he holds adjunct appointments in Mechanical Engineering, Oral Health Science and Restorative Dentistry. His research is broadly focused on the microstructure and mechanical behavior of dental, engineering and natural materials.  His interests include bioinspiration, damage tolerance, and the durability of materials. 


  • Ph.D., Mechanical Engineering, University of Washington, 1996
  • M.S., Mechanical Engineering, University of Washington, 1991
  • B.S., Mechanical Engineering, University of Washington, 1989

Previous appointments

  • Professor, Mechanical Engineering, University of Maryland Baltimore County
  • Research Professor, Department of Endodontics, Prosthodontics and Operative Dentistry, Dental School, University of Maryland

Research Statement

My research program is focused on solving problems that involve the mechanical behavior of materials and factors (either environmental or manufacturing) that influence their performance and durability. Our current studies are focused on understanding the properties of natural materials and engineered materials, as well as the interfaces between hard tissues and biomaterials. Much of the effort is aimed at evaluating the fatigue and fracture behavior of these materials, as well as finding ways to examine and quantify changes in their behavior with aging. Our methods extend from the nano- to the macro-scale. Recent efforts have involved topics relevant to the fields of orthopedics and restorative dentistry. We address fundamental questions, with the ultimate goal being to contribute to the pursuit and maintenance of lifelong health.

In addition to our efforts on existing materials, we are developing new materials inspired by biological structural materials. We have current studies underway aimed at the development of bioinspired ceramics, metals and polymers for various applications with multi-functional performance and exceptional properties.

Current projects

Aging of Hard Tissues

Bioinspired Design of Damage Tolerant Engineered Materials

Fatigue Resistance of Metal Nanolaminates

Impact Resistance of Natural Armors

Slow Crack Growth in Solid Oxide Fuel Cell Components

Select publications

  1. Yan W, Montoya C, Øilo M, Ossa A, Paranjpe A, Zhang H, Arola D. Reduction in fracture resistance of the root with aging. J Endod. 2017;43(9):1494-1498.
  2. Arola D. Fatigue testing of biomaterials and their interfaces. Dent Mater. 2017;33(4):367-381. Invited
  3. Melo MA, Orrego S, Weir MD, Xu HHK, Arola DD. Designing multiagent dental materials for enhanced resistance to biofilm damage at the bonded interface. ACS Appl Mater Interf. 2016;8(18):11779-87.
  4. Yahyazadehfar M, Arola D. The role of organic proteins on the crack growth resistance of human enamel. Acta Biomaterialia. 2015;19:33-45.
  5. Murcia S, McConville M, Li G, Ossa A, Arola D. Temperature effects on the fracture resistance of scales from Cyprinius Carpio. Acta Biomaterialia. 2015: 14:154-63.
  6. Zhang S, Mao S, Arola D and Zhang D. Characterization of the strain-life fatigue properties of thin sheet metal using an optical extensometer. Opt Laser Eng. 2014; 60: 44-48.
  7. Yahyazadehfar M, Ivancik J, Majd H, An B, Zhang D and Arola D. On the mechanics of fatigue and fracture in teeth. Appl Mech Rev. 2014; 66(3): 030803. Invited.
  8. Ivancik J and Arola D. The Importance of microstructural variations on the fracture toughness of human dentin. Biomaterials 2013; 34(4): 864-74.
  9. Majd H, Viray J, Porter JD, Romberg E, Arola D. Degradation in the fatigue resistance of dentin by burr and air jet preparations. J Dent Res. 2012; 91(9):894-899.
  10. Garrano AMC, La Rosa G, Zhang D, Tay FR, Niu L, Majd J and Arola D. On the mechanical behavior of scales from Cyprinus Carpio. J Mech Behav Biomed Mater. 2012; 7: 17-29.
  11. Childs THC and Arola D. Machining of cortical bone: Simulations of chip formation mechanics using metal machining models. Machining Science and Technology, 2011; 15: 206–230.
  12. Zhao R, Burguera EF, Xu HHK, Amin N, Ryou H and Arola DD. Fatigue and human umbilical cord stem cell seeding characteristics of calcium phosphate – chitosan – biodegradable polyester fibre scaffolds. Biomaterials 2010;31(5):840-847.
  13. Bajaj D. and Arola D. On the R-Curve Behavior of Human Tooth Enamel. Biomaterials 2009; 30(23-24);4037-4046.
  14. Zhang D and Arola D. Application of digital image correlation to biological tissues. J Biomed Optics. 2004; 9(4):691-699.
  15. Arola D and Williams CL. Estimating the fatigue stress concentration factor of machined surfaces. Int J Fat. 2002; 24(9):923-930.

Honors & awards

  • Elected MSE Faculty of the Year Award, Senior Class, 2014, 2015, 2016, 2017
  • Thousand Talents Scholar, Shanghai Municipality, Shanghai University, China, 2017
  • CAREER Award, National Science Foundation, 2004
  • Whitaker Foundation Award, 2003