A hierarchical framework for the multiscale modeling of microstructure evolution in heterogeneous materials.

Luscher, Darby J.

Los Alamos National Laboratory

关键词: Materials;    36 Materials Science;    Microstructure;    Simulation;   

DOI  :  10.2172/983909
RP-ID  :  LA-14417-T
RP-ID  :  DE-AC52-06NA25396
RP-ID  :  983909

美国|英语

来源: UNT Digital Library

【 摘 要 】

All materials are heterogeneous at various scales of observation. The influence of materialheterogeneity on nonuniform response and microstructure evolution can have profound impact oncontinuum thermomechanical response at macroscopic “engineering” scales. In many cases, it isnecessary to treat this behavior as a multiscale process thus integrating the physical understandingof material behavior at various physical (length and time) scales in order to more accuratelypredict the thermomechanical response of materials as their microstructure evolves. The intent ofthe dissertation is to provide a formal framework for multiscale hierarchical homogenization to beused in developing constitutive models.