Large Deformation Contact Analysis Method based on Warmstarting Interior-point Method
-
- SHONO Tatsuhiro
- Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
-
- INAGAKI Kazuhisa
- FUJITSU Advanced Technologies Ltd.
-
- HASHIMOTO Gaku
- Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
-
- OKUDA Hiroshi
- Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
Bibliographic Information
- Other Title
-
- ウォームスタート付き内点法に基づく大変形接触解析手法
Description
<p>Recently, primal-dual interior-point method (IPM) are focused as an efficient strategy for large scale contact problems. Contact algorithm based on IPM, however, is difficult to apply finite deformation problems. These problems should be divided into some loading steps and slave nodes approach master surface to very close. Too strong contact reaction force then occurs at the beginning of Newton-Raphson (NR) loop in a loading step. This force causes instability of computation. In this paper, we present contact algorithm based on IPM with warm-start method for solving this problem. Contact constraints are relaxed by additional variables. We solve some problems, including a large deformation problem, and compare the number of NR iteration to investigate convergence of contact analysis. As a result, we find that the proposed method improves convergence of contact analysis from standard IPM and conventional active set method.</p>
Journal
-
- Transactions of the Japan Society for Computational Engineering and Science
-
Transactions of the Japan Society for Computational Engineering and Science 2018 (0), 20180009-20180009, 2018-08-02
JAPAN SOCIETY FOR COMPUTATIONAL ENGINEERING AND SCIENCE
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001288049544448
-
- NII Article ID
- 130007430189
-
- ISSN
- 13478826
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- CiNii Articles
-
- Abstract License Flag
- Disallowed