Experimental and numerical analyses of textile reinforcement forming of a tetrahedral shape

被引：141

作者：

Allaoui, S. ^{[2
]}

Boisse, P. ^{[1
]}

Chatel, S. ^{[3
]}

Hamila, N. ^{[1
]}

Hivet, G. ^{[2
]}

Soulat, D. ^{[2
]}

Vidal-Salle, E. ^{[1
]}

机构：

[1] Univ Lyon, LaMCoS, Insa Lyon, F-69621 Villeurbanne, France

[2] Univ Orleans, PRISME, F-45072 Orleans, France

[3] EADS France, F-44340 Bouguenais, France

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2011年 / 42卷 / 06期

关键词：

Fabrics/textiles; Finite element analysis; Forming; Preform; PICTURE-FRAME TEST; WOVEN COMPOSITE; MECHANICAL-BEHAVIOR; FINITE-ELEMENT; LARGE-DEFORMATION; BIAS-EXTENSION; CONSTITUTIVE MODEL; SHEAR; SIMULATION; FRICTION;

D O I：

10.1016/j.compositesa.2011.02.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An experimental device for textile composite reinforcement forming is presented. A strongly double curved tetrahedral shape is formed by punch and die. This shape is those of the corner fitting parts used as corner brackets. The device shows that is possible to obtain such geometry by punch and die forming thanks to strong blank holder loads and an appropriate reinforcement. There is no wrinkle in the tetrahedral part of the formed shape but the six blank holders create wrinkles in the plane part of the preform. The shear angles reach 60 but there is no wrinkling in this zone. The presented forming process enables the experimental validation of a semi-discrete simulation approach. It is shown that shear angles and wrinkle shapes obtained by this numerical approach are in good agreement with the forming experiment. The computation of the shape of wrinkles after forming is necessary to check that these wrinkles do not expand to the useful part of the preform. This needs to take the bending stiffnesses into account. This is not the case when the simulation is based on a membrane approach. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：612 / 622

页数：11

共 65 条

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