Concurrent multiscale simulation avoids the phenomenological models by directly establishing the connection between the microstructure and the macro-response of materials using RVE analysis.
Each Integration point in the macro-structure is linked to a microscale RVE and the macroscopic response (e.g. stress) is obtained through homogenization. Its computational cost become affordable through RVE model reduction methods, such as deep material network and SCA.
10° Unidirectional-fiber Coupon Model
(joint project with Prof. Wing Kam Liu’s group in Northwestern University)
Fibers aligned 10° off the loading direction.
At each integration point, a UD RVE model is analyzed by SCA method.
UD RVE (100k elements) solved in the microscale.
Computational cost: 16 hours on 160 cpus.
Concurrent model of UD coupon based on SCA
von Mises Stress (Mpa)