Journal
COMPUTERS & STRUCTURES
Volume 89, Issue 23-24, Pages 2352-2360Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2011.07.008
Keywords
Bimodular structures; Parametric variational principle; Parametric quadratic programming method; Finite element method
Funding
- National Natural Science Foundation [11072051, 90715037, 10728205, 10721062, 51021140004]
- 111 Project [B08014]
- National Key Basic Research Special Foundation of China [2010CB832704]
Ask authors/readers for more resources
The aim of this paper is to develop a stable and efficient computational method for static analysis of bimodular materials and structures, which exhibit different mechanical behaviors in tension and compression. Based on the parametric variational principle (PVP) and finite element method (FEM), a unified constitutive equation with parametric variables is established in the principal stress directions. Eventually, the original problem is evolved into a standard complementary quadratic programming problem that can be solved easily. Compared with conventional iterative techniques, the proposed method does not need the pre-assumption of stress states as well as the update of elastic and stiffness matrices and thus presents an excellent convergence behavior. Numerical examples demonstrate the validity and efficiency of this method. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available