X-cor夹层结构压缩模量有限元计算分析  

Finite Element Computational Analysis of X-cor Sandwich′s Compressive Modulus

作　　者：党旭丹[1] 卫萌[2] 王新莉[1] 肖军[3] 

机构地区：[1]河南工程学院机械工程系,郑州451191 [2]郑州大学材料科学与工程学院,郑州451191 [3]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《材料导报》2011年第24期136-140,共5页Materials Reports

基　　金：河南省教育厅2011年度自然科学研究计划项目(2011B430003)

摘　　要：通过分析X-cor夹层结构中Z-pin端部细观结构的显微镜照片,提出Z-pin端部树脂区椭圆形态的基本假设并建立X-cor夹层结构压缩模量的有限元模型,利用大型有限元软件ANSYS对其压缩模量进行数值计算,研究了Z-pin植入角度、直径和密度对X-cor夹层结构压缩模量的影响。结果表明,X-cor夹层结构的压缩模量随Z-pin植入角度的增加而减小,随Z-pin直径和密度的增加而增加。通过有限元计算,获得X-cor夹层结构参数对其压缩模量的影响规律,数值计算结果误差范围为±10%,验证所建立有限元模型的合理性,说明该模型可用于预测其压缩模量。Through the analysis of photomicrographs of Z-pin ends micro-structures in the Xcor sandwich, the basic hypothesis of the elliptic configuration of the resin regions around Z-pin ends were proposed. The finite element model of the compressive modulus of X-cor sandwich was established and the finite element software ANSYS was used in the computation of compressive modulus. The effects of changing Z-pin angle, diameter and density on the compres- sive modulus of Xcor sandwich were analyzed. The numerical analysis results indicate that the compressive modulus decreases as the Z-pin angle increases, and the compressive modulus increase as the Z-pin diameter and density increase. Via the finite element analysis, the influencing trends of Xcor sandwich parameters to the compressive modu lus are achieved and the error range is ±10%. So the rationality of the finite element model is verified and the model can be used to forecast the compressive modulus of X-cot sandwich.

关 键 词：X-cor夹层结构Z pin压缩模量有限元 

分 类 号：TB322[一般工业技术—材料科学与工程]