Digital Method of Analyzing the Bending Stiffness of Non-Crimp Fabrics

被引：0

作者：

Soteropoulos, Dimitri ^{[1
]}

Fetfatsidis, Konstantine ^{[1
]}

Sherwood, James A. ^{[1
]}

Langworthy, Joanna ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Mech Engn, Lowell, MA 01854 USA

来源：

14TH INTERNATIONAL CONFERENCE ON MATERIAL FORMING ESAFORM, 2011 PROCEEDINGS | 2011年 / 1353卷

关键词：

Non-Crimp Fabrics; bending stiffness; composites; finite element;

D O I：

10.1063/1.3589632

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A digital-analytical method for characterizing the bending behavior of NCFs (Non-Crimp Fabrics) is developed. The study is based on a hanging fabric loaded to a known displacement. The image of the deformed fabric is captured digitally, and then analyzed to describe the deformed shape of the beam using x-y coordinates. The bending stiffness of the fabric is then determined through an iterative method using a finite element method (ABAQUS). This effective bending stiffness is of importance in the formation of wave defects in NCFs during manufacturing processes such as thermoforming, vacuum assisted resin transfer molding, and compression molding.

引用

页码：913 / 917

页数：5

共 5 条

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