An averaging based hyperelastic modeling and experimental analysis of non-crimp fabrics

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:154

Article

Vu Ngoc Khiem¹  Krieger, Helga^2,3  Itskov, Mikhail¹  Gries, Thomas²  Stapleton, Scott E.³ 

[1] Rhein Westfal TH Aachen, Dept Continuum Mech, Kackertstr 9, D-52072 Aachen, Germany

[2] Rhein Westfal TH Aachen, Inst Text Technol, Otto Blumenthal Str 1, D-52074 Aachen, Germany

[3] UMass Lowell, Dept Mech Engn, 197 Riverside St,Perry Hall 331, Lowell, MA 01854 USA

关键词: Non-crimp fabrics;    Mechanical testing;    Anisotropy;    Hyperelasticity;    Forming simulation;   

DOI  :  10.1016/j.ijsolstr.2016.12.018

来源: Elsevier

【 摘 要 】

Non-crimp fabrics have become prominent in the automotive and aeronautic industry due to their economical fabrication and the high degree of drapability. The aim of this study is to demonstrate a procedure for experimental characterization and constitutive modeling of non-crimp fabrics. Accordingly, detailed experimental results of tension, bending, in-plane shear and double dome forming are presented and discussed. A novel hyperelastic model for non-crimp fabrics is proposed, which takes into account the fiber dispersion, bending stiffness and anisotropic in-plane shear behavior of the fabrics. The predictive capabilities of the model are illustrated by comparison with the experimental data. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free