En-Hua Yang, Ph.D.

Dr. Yang specializes in the performance of structures and building materials. His principal areas of expertise are non-linear structural and stress analysis, impact/blast engineering, and high performance fiber-reinforced cementitious composites. Dr. Yang has performed analyses of structures under different type of loading conditions including those imposed by wind, flood, shrinkage, and thermal loads. He has extensive experience characterizing the behavior of cement-based materials through mechanical testing and microstructural analysis. Dr. Yang is also experienced in the Leadership in Energy and Environmental Design (LEED) Green Building Rating System, and life cycle and life cycle cost assessments.

Prior to joining Exponent, Dr. Yang was a Research Assistant at the University of Michigan at Ann Arbor, where he studied integrated structures and materials design framework. His research focused on improving structural safety, durability, and sustainability through advanced materials technology. He worked with the Michigan Department of Transportation to create design guidelines and special provisions for ductile concrete link slabs. He developed a ductile concrete material which was then used to construct link slabs to replace bridge expansion joints. He verified performance of the link slabs using small and full-scale laboratory tests. He also assisted in the construction of a link slab in the Groove Street Bridge over I-94 in Michigan, and monitored its performance in the field.

Yang E, Li VC. Strain-hardening fiber cement optimization and component tailoring by means of a micromechanical model. Construction and Building Materials, in press.

Yang E, Li VC, Dancygier AN, Yankelevsky D, Katz A, Bentur A. Impact resistance of engineered cementitious composites. International Symposium on Interaction of the Effects of Munitions with Structures, in press.

Yang Y, Lepech M, Yang E, Li VC. Self-healing of ECC at stimulated summer condition. Rare Metals, in press.

Yang E, Wang S, Yang Y, Li VC. Fiber-bridging constitutive law of engineered cementitious composites. JCI Advanced Concrete Technology 2008; 6(1):181–193.

Yang E, Yang Y, Li VC. Use of high volumes of fly ash to improve ECC mechanical properties and material greenness, ACI Materials 2007; 104(6):620-628.

Yang E, Li VC. Numerical study on steady-state cracking of composites. Composites Sci Technol 2007; 67(2):151–156.

Yang E, Li VC. A micromechanical model for fiber cement optimization and component tailoring. 10th International Inorganic-Bonded Fiber Composites Conference 2006; CD-paper K4.

Yang E and Li VC. Rate dependencies in engineered cementitious composites. International Workshop on HPFRCC in Structural Applications, pp. 83–92, 2005.

Li VC, Yang E. Damage mechanics of engineered cementitious composites. NSF-FHWA Workshop on Imaging and Simulation of Concrete Microstructure (Nano to Mesoscale), pp. 33–37, 2003.

Yang E, Tsai CZ, Wu E. Fracture toughness of brittle material I—Pre-cracking and quasi-static fracture toughness test. 16th National Conference on Mechanical Engineering, Vol. 3, pp. 647–654, 1999.

Yang E, Tsai CZ, Wu E. Fracture toughness of brittle material II—A new method of dynamic fracture toughness test. 16th National Conference on Mechanical Engineering, Vol. 3, pp. 655–662, 1999.

Yang E, Tsai CZ, Wu E. Peak force identification in plate impact. 23rd National Conference on Theoretical and Applied Mechanics, Vol. 2, pp. 241–248, 1999.

Yang E, Tsai CZ, Wu E. A comparison of high strain rate tests. 22nd National Conference on Theoretical and Applied Mechanics, Vol. 2, pp. 61–68, 1998.

Book Chapter

Li VC, Yang E. Self healing in concrete materials. In: Self Healing Material: An Alternative Approach to 20 Centuries of Materials Sciences, pp. 161–193, 2007.

• American Concrete Institute (member)
• RILEM (member)