碳纤维/环氧树脂基中空夹芯复合材料压缩性能的有限元法研究

纺织学报 ›› 2015, Vol. 36 ›› Issue (09): 50-54.

碳纤维/环氧树脂基中空夹芯复合材料压缩性能的有限元法研究

收稿日期:2014-08-20 修回日期:2015-05-27 出版日期:2015-09-15 发布日期:2015-09-14

Compressive properties of carbon three/epoxy resin hollow sandwich composites based on finite element software

Received:2014-08-20 Revised:2015-05-27 Online:2015-09-15 Published:2015-09-14

摘要/Abstract

摘要：

在已有研究的基础上，利用有限元软件ANSYS Workbench，建立了三维中空夹芯复合材料结构模型，进行压缩性能研究。利用该模型，探讨了材料在2mm压缩位移载荷作用下纤维、树脂和复合材料的应力、应变分布。结果表明：三维中空夹芯复合材料在压缩载荷作用下，芯材交叉处应力最大，最容易发生压缩破坏；上下面板应力最小，最不容易发生压缩破坏。复合材料在承受压缩载荷作用时，纤维起主要承载作用，树脂起次要作用。材料的破坏模式主要为树脂破裂。

关键词: 三维中空夹芯复合材料, ANSYS Work bench, 压缩性能, 应力, 应变, 破坏模式

Abstract:

On the basis of previous studies, a new structural model was built to study compressive properties of three-dimensional hollow sandwich composites (3D composites) by using the finite element software ANSYS Workbench. The distribution of stress & strain on the fibers, resin and the 3D composites was discussed under compressive loads of 2 mm displacement by using the model. The results show that the maximum value of stress occured between the overlap of piles, where the 3D composites damaged easily. The minimum value of stress occured on the up and down face-sheet, where the 3D composites damaged difficultly. The main loads were supported by fibers and the minor loads were supported by resin. The main failure mode of the 3D composites are resin fracture when the 3D composites suffered compressive loads.

Key words: three-dimensional hollow sandwich composite, ANSYS workbench, compressive property, stress, strain, failure mode

曹海建冯古雨俞科静钱坤. 碳纤维/环氧树脂基中空夹芯复合材料压缩性能的有限元法研究[J]. 纺织学报, 2015, 36(09): 50-54.

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