| 三维复合材料层合板渐进损伤非线性分析模型 |
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| 引用本文： | 王跃全,童明波,朱书华.三维复合材料层合板渐进损伤非线性分析模型[J].复合材料学报,2009,26(5):159-166. |
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| 作者姓名： | 王跃全 童明波 朱书华 |
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| 作者单位： | 南京航空航天大学,飞行器先进设计技术国防重点学科实验室,南京,210016;南京航空航天大学,飞行器先进设计技术国防重点学科实验室,南京,210016;南京航空航天大学,飞行器先进设计技术国防重点学科实验室,南京,210016 |
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| 摘 要： | 为有效反映复合材料层合板层间相互作用和材料损伤非线性，建立了中等尺度的三维复合材料层合板渐进损伤分析模型。非线性渐进损伤分析过程包括应力求解、材料损伤失效判据及材料性能退化方案3个方面。讨论了损伤材料性能退化方案，引入与材料损伤模式相对应的损伤变量表征材料点的损伤状态，材料的刚度矩阵按损伤变量退化。基于该模型可成功预测复合材料层合板损伤起始、扩展直至最终失效的整个过程和极限强度。经文献试验数据验证，12种不同铺层顺序层合板的计算强度与试验数据均吻合较好，表明该模型在复合材料层合板极限强度预测上的有效性。
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| 关 键 词： | 渐进损伤分析 有限元模型 层合板 强度 |
| 收稿时间： | 2008-09-10 |
| 修稿时间： | 2008-12-03 |
3D nonlinear progressive damage analysis model for composite laminates |
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| WANG Yuequan,TONG Mingbo,ZHU Shuhua.3D nonlinear progressive damage analysis model for composite laminates[J].Acta Materiae Compositae Sinica,2009,26(5):159-166. |
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| Authors: | WANG Yuequan TONG Mingbo ZHU Shuhua |
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| Affiliation: | ( Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Fligh Vehicle, Nanjing University of Aeronautics&;Astronautics, Nanjing 210016, China) |
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| Abstract: | A three-dimensional(3D) nonlinear progressive damage analysis(PDA) model at the mesoscale level was presented in order to take into account the interlaminar stress and damaged material nonlinearity.The typical PDA consists of stress analysis,material failure initiation criteria and damaged material degradation rules.A damaged material degradation rule was discussed mainly to introduce damage status invariables corresponding to different damage modes.The material stiffness matrix at each material point was d... |
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| Keywords: | progressive damage analysis finite element model laminates strength |
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