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| Study on springback property of bimetal composite plate under tensile loading |
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GUAN Ben, WANG Yafei, ZANG Yong, QIN Qin, ZHANG Chao
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(School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China)
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| Abstract: |
| Based on the elastic-plastic mechanics, the springback characteristics of bimetal composite plate were analyzed under the plane stress condition, and the analytical equations of residual curvature and neutral axis offset of residual strain were obtained. By combining the FEM method and experiments, the steel-aluminum bimetal composite was analyzed specifically. The results show that the bimetal composite plate after springback exhibits a pure bending state and the residual curvature will increase with the increase of load. There exists a stable mixture ratio value, which results in the maximal residual curvature for any materials of layers. |
| Key words: bimetal composite plate tensile springback neutral axis offset residual curvature |
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