| 基于应力等效方法的层合板刚度退化估算模型 |
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| 引用本文： | 张泰峰,杨晓华,孙文胜,张勇.基于应力等效方法的层合板刚度退化估算模型[J].装备环境工程,2012,9(1):85-89. |
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| 作者姓名： | 张泰峰 杨晓华 孙文胜 张勇 |
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| 作者单位： | 海军航空工程学院青岛分院,山东青岛,266041 |
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| 摘 要： | 以细观力学的研究结果为基础,运用应力等效的方法,对疲劳载荷作用下非正交层合板基体裂纹损伤和纤维断裂损伤进行分析,计算相应铺层的损伤量,建立起疲劳载荷作用下层合板刚度退化估算模型。运用该模型对0/±45]s玻璃环氧树脂基复合材料层合板刚度退化进行了预测,与试验结果吻合较好。
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| 关 键 词： | 应力等效 损伤 刚度 |
| 收稿时间： | 2011/8/23 0:00:00 |
Estimation Model of Laminated Board Stiffness Reduction Based on Stress Equivalence Method |
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| ZHANG Tai-feng,YANG Xiao-hu,SUN Wen-Sheng and ZHANG Yong.Estimation Model of Laminated Board Stiffness Reduction Based on Stress Equivalence Method[J].Equipment Environmental Engineering,2012,9(1):85-89. |
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| Authors: | ZHANG Tai-feng YANG Xiao-hu SUN Wen-Sheng and ZHANG Yong |
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| Institution: | (Qingdao Branch of Navy Aeronautic Engineering Academy, Qingdao 266041, China) |
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| Abstract: | Based on the research result of mesomechanics, the crack damage and fiber breakage damage of non-orthogonal laminated matrix were analyzed with stress equivalence method. The damage of corresponding layer was calculated and the estimation model laminated board stiffness reduction under fatigue load was established. The stiffness degradation of 0/_＋45]s glass fiber reinforced epoxy composite laminated board was predicted with the model, the result of which agrees with the test result. |
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| Keywords: | stress equivalence damage stiffness |
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