不同夹芯复合材料夹层结构的剪切破坏行为
Shear Damage Behavior of Composite Sandwich Plate with Different Cores
摘 要
对蜂窝和泡沫夹芯的复合材料夹层结构通过夹具用拉伸试验模拟剪切破坏行为, 分析了试验载荷-应变曲线及失效模式, 得出应变场分布情况及失效原因, 并分别对不同夹层结构的剪切行为进行了有限元模拟。结果表明: 夹层结构的失效模式均为沿加载方向的屈曲破坏, 并且在中间区域与边界区域之间的区属于纯剪应力区; 夹芯材料的横向剪切模量直接影响了复合材料夹层结构的屈曲破坏载荷和失效模式; 有限元分析的屈曲模态与试验失效模式较为吻合。
剪切
屈曲
失效
sandwich plate
shear
buckling
failure
Abstract
Tensile test for honeycomb sandwich plates and foam sandwich plates was carried out by the tension of fixture to simulate shear damage behaviors. The distribution of strain field and the reason for failure were revealed by the analysis of the load-strain curves and failure mode. In addition, the shear behaviors of different composite sandwich plates were simulated by finite element software. The results show that the both failure modes were all buckling failure along the loading direction, and the region between the middle part and boundary part was a pure shear region. The horizontal shear modulus of different cores had a great influence on the buckling load and failure mode. And the finited element simulated buckling mode of sandwich plates fitted well with that from the experiment.
中图分类号 TB330.1
所属栏目 试验研究
基金项目
收稿日期 2011/8/29
修改稿日期 2012/6/4
网络出版日期
作者单位点击查看
备注邹建胜(1986-), 男, 浙江杭州人, 硕士研究生。
引用该论文: ZOU Jian-sheng,ZENG Jian-jiang,TONG Ming-bo,CAI Jing. Shear Damage Behavior of Composite Sandwich Plate with Different Cores[J]. Materials for mechancial engineering, 2012, 36(9): 38～41
邹建胜,曾建江,童明波,蔡婧. 不同夹芯复合材料夹层结构的剪切破坏行为[J]. 机械工程材料, 2012, 36(9): 38～41
被引情况:
【1】陈红霞,曹海建, "芯材结构对三维中空夹芯复合材料压缩性能的影响",机械工程材料 40, 82-84(2016)
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参考文献
【1】BRISCOE C, MANTELL S, DAVIDSON J. Shear buckling in foam-filled web core sandwich panels using a Pasternak foundation model[J].Thin Walled Structures, 2010, 48(6): 460-468.
【2】HADI B K, MATTHEWS F L. Predicting the buckling load of anisotropic sandwich panels-an approach including shear deformation of the faces[J].Composite Structures, 1998, 42(3): 245-255.
【3】白瑞详, 陈浩然, 苏长健.考虑面板和心体剪切效应的复合材料夹层板稳定性的有限元分析[J].玻璃钢/复合材料, 1999(5): 3-6.
【4】彭伟斌, 朱森元, 胡泽保, 等.复合材料夹芯板的屈曲分析[J].宇航学报, 2001, 22(4): 41-49.
【5】许良梁, 矫桂琼, 卢智先.含分层复合材料层合板剪切屈曲的实验研究[J].机械强度, 2007, 29(4): 574-578.
【6】王平安.复合材料加筋板在剪切载荷下的屈曲特性研究[J].机械强度, 2009, 31(1): 078-082.
【2】HADI B K, MATTHEWS F L. Predicting the buckling load of anisotropic sandwich panels-an approach including shear deformation of the faces[J].Composite Structures, 1998, 42(3): 245-255.
【3】白瑞详, 陈浩然, 苏长健.考虑面板和心体剪切效应的复合材料夹层板稳定性的有限元分析[J].玻璃钢/复合材料, 1999(5): 3-6.
【4】彭伟斌, 朱森元, 胡泽保, 等.复合材料夹芯板的屈曲分析[J].宇航学报, 2001, 22(4): 41-49.
【5】许良梁, 矫桂琼, 卢智先.含分层复合材料层合板剪切屈曲的实验研究[J].机械强度, 2007, 29(4): 574-578.
【6】王平安.复合材料加筋板在剪切载荷下的屈曲特性研究[J].机械强度, 2009, 31(1): 078-082.
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