Simulating Initial and Progressive Failure of Open-Hole Composite Laminates under Tension |
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Authors: | Zhangxin Guo Hao Zhu Yongcun Li Xiaoping Han Zhihua Wang |
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Affiliation: | 1.College of Mechanics, Shanxi Key Lab. of Material Strength & Structural Impact,Taiyuan University of Technology,Taiyuan,China;2.Department of Engineering Mechanics,Northwestern Polytechnical University,Xi’an,China |
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Abstract: | A finite element (FE) model is developed for the progressive failure analysis of fiber reinforced polymer laminates. The failure criterion for fiber and matrix failure is implemented in the FE code Abaqus using user-defined material subroutine UMAT. The gradual degradation of the material properties is controlled by the individual fracture energies of fiber and matrix. The failure and damage in composite laminates containing a central hole subjected to uniaxial tension are simulated. The numerical results show that the damage model can be used to accurately predicte the progressive failure behaviour both qualitatively and quantitatively. |
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