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| A new VCCT and its application in composite delamination analysis |
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| DOI：10.7511/jslx20003055 |
| KeyWord:VCCT technology,tire belt, delamination,strain energy release rates,life |
| WEI Yin tao 1 YANG Ting qing 1 WANG Zhi\|min DU Xing wen 2 |
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| Abstract: |
| In this paper, a modified VCCT (Virtual Crack Close Technology) is developed to compute strain energy release rates of tire belt(a kind of composite structure) under different delamination lengths. The crack tip close displacements are enforced on the deformed configuration as the increment constraints, crack tip force being constraint reaction force, strain energy release rates being equal to the sum of constraint displacement timing constraint force. The advantages of this method are simple, convenient, physical direct, and saving computing amount. In addition, as an example, the belt delamination analysis is made using this method, and the numerical results are given. Then the evaluation of tire belt life is presented. |
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