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Thermal-mechanical computational continua approach of composite structures
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DOI:10.1016/j.ijsolstr.2026.113952.png)
Abstract
En 中文
A thermal-mechanical computational continua (C2) approach is developed for the multiscale analysis of composite structures. The displacement and temperature fields are divided into macroscopic terms and periodic microscopic perturbations. Since the dimension of computational unit cells (CUCs) in the microscopic problem is identical to the macroscopic element size, the geometric scale effect is abandoned in the decomposition of displacement and temperature fields. The finite element method (FEM) is adopted to discretize both the macroscopic and microscopic problems, and their governing equations are deduced from the thermal-mechanical coupling constitutive relationship and variational principle. By transferring the nodal value functions derived from the microscopic problem to the macroscopic problem, the macroscopic effective constitutive relation is derived. In the numerical examples, the proposed method is applied to solve the thermal-mechanical coupling problem of a hexahedron with inclusions, and the results are in good agreement with those of direct numerical simulation (DNS). In addition, the multiscale thermal-mechanical coupling analysis is carried out for the unidirectional and braided composite laminated plates.
Keywords:
Multiscale analysis
Thermal-mechanical coupling
Composite structures
Journal
IF:
3.8
Papers:
1.1W
Citations:
3.1W
