Volume 26, Issue 2 (1-2008)
2008, 26(2): 77-86 |
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M. Salimi, M. Jamshidian, A. Beheshti, and A. Sadeghi Dolatabadi. Bending-Unbending Analysis of Anisotropic Sheet under Plane Strain Condition. Computational Methods in Engineering 2008; 26 (2) :77-86
URL: http://jcme.iut.ac.ir/article-1-437-en.html
URL: http://jcme.iut.ac.ir/article-1-437-en.html
Abstract: (6228 Views)
The mechanical behavior of cold rolled sheets is significantly related to residual stresses that arise from bending and unbending processes. Measurement of residual stresses is mostly limited to surface measurement techniques. Experimental determination of stress variation through thickness is difficult and time-consuming. This paper presents a closed form solution for residual stresses, in which the bending-unbending process is modeled as an elastic-plastic plane strain problem. An anisotropic material is assumed. To validate the analytical solution, finite element simulation is also demonstrated. This study is applicable to analysis of coiling-uncoiling, leveling and straightening processes.
