Design of Biaxial Tensile Cruciform Specimen Based on Simulation Optimization

DOI

10.2991/mmeceb-15.2016.37How to use a DOI?

Keywords

Biaxial tensile testing, Cruciform specimen, Finite element method, plastic deformation, Thickness of central area, Fillet radius

Abstract

In this paper, the design methods of cruciform specimen of biaxial tensile testing are summarized. In order to study the stress and strain distribution of sheet metal under plastic deformation stage, the specimen shape is designed according to the principles of stress–strain distribution homogeneous in the center area and stress concentrations in the arms. Based on the sample size recommended by the biaxial tensile test international standard tensile properties and the mechanical properties of 45 steel, the simulation model was established. The influence and regularity of the parameters on the test results are calculated by the finite element method, and the optimization is carried out. Optimization results show that thickness of central area can be decreased moderately based on a half of the original thickness, and the best value should be controlled by 40% to 50%; the outward fillet radius can be increased moderately based on the design of slot in arms and thickness reduction in the central area, and the radius value be controlled by 2-7% of specimen width.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Rui Xiao
AU  - Xiaoxing Li
AU  - Lihui Lang
AU  - Yangkai Chen
AU  - Yulong Ge
PY  - 2015/12
DA  - 2015/12
TI  - Design of Biaxial Tensile Cruciform Specimen Based on Simulation Optimization
BT  - Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology
PB  - Atlantis Press
SP  - 178
EP  - 186
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmeceb-15.2016.37
DO  - 10.2991/mmeceb-15.2016.37
ID  - Xiao2015/12
ER  -