玻璃纤维-铝合金正交层板的拉伸性能研究

通过对两组具有不同铺层次序的玻璃纤维-铝合金正交层板进行拉伸实验,对比研究了铺层次序对材料拉伸力学行为的影响.载荷跌落前两组试件的拉伸力学性能和应力-应变曲线基本一致,说明玻璃纤维-铝合金正交层板的拉伸力学性能与纤维的铺层次序无关.提出了修正后的金属体积分数理论,准确预测了材料的弹性模量、屈服应力及拉伸强度.依据声发射数据和试件损伤失效形貌照片,分析了两组试件的拉伸损伤失效进程.结果表明,铺层次序的不同使得两组材料的损伤进程和破坏模式具有很大差异.最后,利用有限元方法对试件的拉伸力学行为进行了模拟分析,模拟结果与实验值吻合较好....

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Bibliographic Details
Published in材料工程 Vol. 43; no. 9; pp. 60 - 65
Main Author 王亚杰 王波 张龙 马宏毅
Format Journal Article
LanguageChinese
Published 西北工业大学力学与土木建筑学院,西安,710129%北京航空材料研究院,北京,100095 2015
Subjects
失效机理
拉伸实验
损伤演化
有限元模拟
玻璃纤维-铝合金正交层板
finite element modelling
拉伸实验
tensile test
损伤演化
失效机理
有限元模拟
glass fiber reinforced aluminum orthorhombic laminate
failure mechanism
玻璃纤维-铝合金正交层板
damage evolution
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ISSN1001-4381
1001-4381
DOI10.11868/j.issn.1001-4381.2015.09.010

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Summary:通过对两组具有不同铺层次序的玻璃纤维-铝合金正交层板进行拉伸实验,对比研究了铺层次序对材料拉伸力学行为的影响.载荷跌落前两组试件的拉伸力学性能和应力-应变曲线基本一致,说明玻璃纤维-铝合金正交层板的拉伸力学性能与纤维的铺层次序无关.提出了修正后的金属体积分数理论,准确预测了材料的弹性模量、屈服应力及拉伸强度.依据声发射数据和试件损伤失效形貌照片,分析了两组试件的拉伸损伤失效进程.结果表明,铺层次序的不同使得两组材料的损伤进程和破坏模式具有很大差异.最后,利用有限元方法对试件的拉伸力学行为进行了模拟分析,模拟结果与实验值吻合较好.
Bibliography:WANG Ya-jie ,WANG Bo ,ZHANG Long ,MA Hong-yi （1 School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi ＇ an 710129, China 2 Beijing Institute of Aeronautical Materials,Beijing 100095 ,China）
11-1800/TB
The influence of different layout sequence on the tensile properties was investigated by tensile tests of two group of glass fiber reinforced aluminum orthorhombic laminate with different se quences. The test results show that tensile properties and stress-strain curves of two groups of specimens under loading are almost the same. As a result, the tensile properties have nothing to do with the fiber layup sequence. A modified theory of metal volume fraction is put forward to precisely predict tensile properties including elastic modulus, yield stress and tensile strength. According to acoustic emission（AE） data and pictures of failed specimens, the damage process and failure mechanism of two groups of specimens were analyzed. The results show that the layup sequence has
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2015.09.010