A Coupled Experiment-Finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials

Prabhu, R., Whittington, W. R., Patnaik, S. S., Mao, Y., Liao, J., Williams, L. N., Begonia, M., & Horstemeyer, M. (2015). A Coupled Experiment-Finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials. JoVE. Cambridge, MA: JoVE Corp.. 1(99), e51545. DOI:10.3791/51545.

The current study prescribes a coupled experiment-finite element simulation methodology to obtain the uniaxial dynamic mechanical response of the soft biomaterials (brain, liver, tendon, fat etc.). The multiaxial experimental results that arose because of specimen bulging obtained from Split-Hopkinson Pressure Bar testing were rendered to a uniaxial true stress-strain behavior when simulated through iterative optimization of the finite element analysis of the biomaterial