期刊
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
卷 102, 期 3-4, 页码 748-765出版社
WILEY
DOI: 10.1002/nme.4755
关键词
multiscale cohesive modeling; computational homogenization; high-performance computing; heterogeneous layers; adhesives
资金
- National Science Foundation [CMMI-1153435]
We develop a three-dimensional, hierarchically parallel, finite strain multiscale solver capable of computing nonlinear multiscale solutions with over 1 billion finite elements and over 574 million nonlinear equations on 1552 computing cores. In the vein of FE2, we use the nested iterative procedure and devote the solver to multiscale cohesive modeling of heterogeneous hyperelastic layers. The hierarchically parallel multiscale solver takes advantage of a client-server non-blocking communication matrix that limits latency, starvation, and overhead by overlaying computations at different scales. We perform simulations of real-scale engineering devices and bridge O(10(6)) in length-scales, spanning from O(10(1)) mm to O(10(1)) nm in spatial resolution. Verification of the hierarchically parallel solver is provided together with a mesh convergence study. Moreover, we report on the scaling performance. Copyright (C) 2014 John Wiley & Sons, Ltd.
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