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| Damage analysis method of lamina based on peridynamic theory |
| Received:January 04, 2018 Revised:March 04, 2018 |
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| DOI：10.7511/jslx20180104001 |
| KeyWord:peridynamic composite load propagation mode of crack the constitutive equation |
| Author | Institution |
| 郭帅 |
山东理工大学 交通与车辆工程学院, 淄博 |
| 焦学健 |
山东理工大学 交通与车辆工程学院, 淄博 |
| 李丽君 |
山东理工大学 交通与车辆工程学院, 淄博 |
| 冷杨松 |
山东理工大学 交通与车辆工程学院, 淄博 |
| 孙丰山 |
山东理工大学 交通与车辆工程学院, 淄博 |
| 单海瑞 |
山东理工大学 交通与车辆工程学院, 淄博 |
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| Abstract: |
| Based on the theory of bond-based peridynamics (PD),the lamina model of a composite material was constructed,and a continuously changing bond stiffness is introduced into the constitutive equation of the model to represent the change of its mechanical properties.The thermal expansion coefficient related to the main direction of the composite material was derived,which provides a theoretical support for the inclusion of a thermal load.The thermal and mechanical loads are unified in the constitutive equation.Finally,through the simulation of a crack growth mode of the lamina with a pre-existing crack,numerical results are obtained,and compared with the existing experimental results to verify the validate of the model. |
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