薄层单元基本假设和简化探讨

DISCUSS ON FUNDAMENTAL ASSUMPTION AND SIMPLIFICATION OF THIN-LAYER ELEMENT

对薄层单元的基本假设和简化进行了探讨并得到如下结论:薄层单元的本构方程可通过横现各向同性体本构方程采用合理简化得到;薄层单元受拉开裂的本构关系可采用分布裂缝模型模拟开裂简化得到;薄层单元采用的基本假设能在一定程度上保证计算精度及简化计算.

This paper discusses fundamental assumption and simplification of the thin-layer element. The thin-layer element constitutive model can be obtained from the constitutive model of transversely isotropic materials. The constitutive relation of thin-layer elements in crak can be obtained by using the distributed crack model. The fundamental assumption of thin-layer elements can assure calculation accuracy and simplify calculation to a certain extent.