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Sponsored by: Northwestern Polytechnical University  Chinese Society Aeronautics and Astronautics
Address: Aviation Building,Youyi Campus, Northwestern Polytechnical University
The study on failure mechanism and strength prediction of composite laminates with a central hole
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School of Aeronautics,Northwestern Polytechnical University,School of Aeronautics,Northwestern Polytechnical University,School of Aeronautics,Northwestern Polytechnical University

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TB33

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    Abstract:

    To study tensile strength of composite laminates containing a central hole, this paper takes the composite laminates with a central hole as the research object. Tensile tests were conduct on specimens with three different ply ratio according to ASTM D5766 standard to study the influence of ply ratio on the tensile properties and failure modes on composite laminates. Based on continuum damage mechanics, the maximum strain criterion and no-linear Puck criterion which is physical-based were employed to predict the initiation of fiber and matrix damage respectively. The revolution of damage was based on strain on the fracture plane. Three dimensional finite element model of composite laminates with a central hole was built. The results of FEA model proved that the model can efficiently predict the tensile strength and damage revolution of composite laminates with a central hole.

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Tuo Hongliang, Ma Xiaoping, Lu Zhixian. The study on failure mechanism and strength prediction of composite laminates with a central hole[J]. Advances in Aeronautical Science and Engineering,2018,9(2):259-266

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History
  • Received:October 30,2017
  • Revised:December 19,2017
  • Adopted:December 29,2017
  • Online: May 09,2018
  • Published: