Abstract Scope |
In this talk, we will: (a) characterize the multiscale nature of mechanical, thermal, mass transport and their interactions in heterogeneous materials containing a high density of interfaces; (b) examine the applicability of several representative experimental/computational techniques/approaches in identifying the mechanisms underlying the interface-dictated slip transfer, twinning nucleation, phase transformation, and hydrogen embrittlement (HE); (c) highlight the need for the development of multiscale methods that can unify atomistic and continuum descriptions of materials within one framework, together with our preliminary attempts in this regard. It will inspire researchers to further develop advanced theories, algorithms, and software towards bottom-up predictive simulations of deformation, thermal, diffusion behavior, and their coupling in complex materials. Such simulations in turn, may enable a rational design of materials with desired properties, for example high strength/ductility/toughness, low/high thermal/ionic conductivity, corrosion-/irradiation-/hydrogen-embrittlement-resistance, and a combination of them, through an interface engineering approach. |