期刊论文

Pan, Qinxue

英文

力学学报：英文版

0567-7718

2020

36

1

143-159

10.1007/s10409-019-00909-3

The authors highly appreciate Prof. X. Guo and Dr. Z.L. Du from Dalian University of Technology for helpful discussion and advice. This research was supported by the National Natural Science Foundation of China (Grant 51908071), Scientific Research Project of Education Department of Hunan Province (Grant 18C0194), and Open Fund of Key Laboratory of Road Structure and Material of Ministry of Transport, Changsha University of Science & Technology (Grant kfj170303).

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The bimodulus material is a classical model to describe the elastic behavior of materials with tension–compression asymmetry. Due to the inherently nonlinear properties of bimodular materials, traditional iteration methods suffer from low convergence efficiency and poor adaptability for large-scale structures in engineering. In this paper, a novel 3D algorithm is established by complementing the three shear moduli of the constitutive equation in principal stress coordinates. In contrast to the existing 3D shear modulus constructed based on exp...