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. ZHANG Tai-feng,YANG Xiao-hua,SUN Wen-Sheng,ZHANG Yong.Estimation Model of Laminated Board Stiffness Reduction Based on Stress Equivalence Method[J].Equipment Environmental Engineering,2012,9(1):85-89.
基于应力等效方法的层合板刚度退化估算模型
Estimation Model of Laminated Board Stiffness Reduction Based on Stress Equivalence Method
投稿时间：2011-08-23  
DOI：
中文关键词:  应力等效  损伤  刚度
英文关键词:stress equivalence  damage  stiffness
基金项目:中文基金项目
作者单位
张泰峰 海军航空工程学院青岛分院，山东青岛266041 
杨晓华 海军航空工程学院青岛分院，山东青岛266041 
孙文胜 海军航空工程学院青岛分院，山东青岛266041 
张勇 海军航空工程学院青岛分院，山东青岛266041 
AuthorInstitution
ZHANG Tai-feng Qingdao Branch of Navy Aeronautic Engineering Academy，Qingdao266041，China 
YANG Xiao-hua Qingdao Branch of Navy Aeronautic Engineering Academy，Qingdao266041，China 
SUN Wen-Sheng Qingdao Branch of Navy Aeronautic Engineering Academy，Qingdao266041，China 
ZHANG Yong Qingdao Branch of Navy Aeronautic Engineering Academy，Qingdao266041，China 
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中文摘要:
      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。
英文摘要:
      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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