Bio
Jiahao Cheng is a R&D staff in the Deposition Science & Technology Group in the Manufacturing Science Division. He received his Ph.D. from Johns Hopkins University in 2016 in computational solid mechanics. His research mainly focuses on developing constitutive models and numerical simulations for the deformation and failure in metallic materials at the micro- and continuum scales. The following is a list of his research areas:
1, Develop crystal plasticity models to simulate plastic deformation (dislocation slip, TWIP, TRIP), creep, fatigue and failure in various metals and alloys.
2, Simulate material damage and fracture with various methods, including continuum damage models, cohesive zone models and phase field fracture model.
3, Develop multi-physics model, such as chemo-thermo-mechanical model for hydrogen-metal interaction and embrittlement.
4, Thermal-mechanical process simulation for powder-bed-fusion additive manufacturing and residual stress prediction.
5, Model deformation and failure for composites, including polymer-metal composites and metal-metal composites.
6, Develop novel acceleration and multi-scaling algorithms for finite element simulations.