CALCULATION RESEARCH ON THE RESIDUAL COMPRESSIVE STRENGTH OF STITCHED COMPOSITE LAMINATES AFTER IMPACT DAMAGE

CHEN Tao; XU XiWu; MAO ChunJian

doi:10.16579/j.issn.1001.9669.2017.05.022

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CALCULATION RESEARCH ON THE RESIDUAL COMPRESSIVE STRENGTH OF STITCHED COMPOSITE LAMINATES AFTER IMPACT DAMAGE

更新时间：2022-09-22

- CALCULATION RESEARCH ON THE RESIDUAL COMPRESSIVE STRENGTH OF STITCHED COMPOSITE LAMINATES AFTER IMPACT DAMAGE
- Journal of Mechanical Strength Vol. 39, Issue 5, Pages: 1126-1131(2017)
- 作者机构：
  
  1. 南京航空航天大学机械结构力学及控制国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.05.022
  CLC：
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CHEN Tao, XU XiWu, MAO ChunJian. CALCULATION RESEARCH ON THE RESIDUAL COMPRESSIVE STRENGTH OF STITCHED COMPOSITE LAMINATES AFTER IMPACT DAMAGE. [J]. 39(5):1126-1131(2017)
DOI：

CHEN Tao, XU XiWu, MAO ChunJian. CALCULATION RESEARCH ON THE RESIDUAL COMPRESSIVE STRENGTH OF STITCHED COMPOSITE LAMINATES AFTER IMPACT DAMAGE. [J]. 39(5):1126-1131(2017) DOI： 10.16579/j.issn.1001.9669.2017.05.022.

摘要

缝合复合材料在复合材料的厚度方向加入了缝线,不仅提高了层板的层间强度,抑制了分层的扩展,而且提高了受冲击后的压缩强度。采用开口等效法来模拟层板的初始损伤,用三维实体单元模拟层板,空间三维杆单元模拟缝线的增强作用,采用三维Hashin判据作为压缩时层板渐近损伤的失效判据,模拟缝合复合材料层板受冲击损伤后的压缩过程;得到层板的剩余压缩强度,与试验结果吻合较好。

Abstract

Stitched composite material not only suppresses delamination expansion, but also improves inter-laminar toughness and compressive characteristics after impact by introducing stitch in the thickness direction. Equivalent hole method simulates the initial damage of stitched plate. The finite element analysis method with damage evolution process based on threedimensional Hashin criterion with 3D solid element modelling laminates,3D bar element modelling stitch simulated the stitched composite laminates damage evolution effectively. The calculation results were in good agreement with the experimental data.

关键词

复合材料缝合层板冲击损伤剩余压缩强度

Keywords

CompositeStitched laminatesImpact damageResidual compression strength

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