Experimental and finite element analysis of in-plane shear properties of a carbon non-crimp fabrics at macroscopic scale

Abstract

Shear deformation of composite reinforcement is the most significant and important mechanism of material characterization. So, in-plane shear properties of composite reinforcement are important parameters for determining application and use of this category of materials. The bias extension test is frequently employed to investigate the in-plane shear behavior of composites fabrics with a length equal to or greater than twice its width. In the first part of this work, bias extension tests on non-crimp fabrics have been conducted. Force and displacement were measured and registered. From obtained data, shear angles and normalized shear forces were theoretically determined. The second part was a finite element analysis of the same test based on hypo elastic model at macroscopic scale. The software ABAQUS/Explicit was used to carry out the finite element analysis in the work.

Influence of specimen pre-shear and wrinkling on the accuracy of uniaxial bias extension test results

“…The equation normally used to predict ideal shear angle, Eq (1), or variations on the same equation e.g. (Boisse et al, 2016;Cao et al, 2008;Deghboudj et al, 2017;Haanappel et al, 2014;Harrison et al, 2004;ten Thije and Akkerman, 2008), assumes pin-jointed net (ideal) kinematics. The equation usually takes no account of unintentional sample pre-shear; though there are exceptions (Lebrun et al, 2003).…”

Modal Analysis of Orthotropic Thin Rectangular Plate Based on Analytical and Finite Element Approaches

“…Nowadays, numerical simulation has become the most efficient and the most widely used calculation tool for predicting the mechanical behavior of structures during commissioning and improving the operation of industrial systems and processes. The Finite element method (FEM) is a powerful computational technique widely used for numerical simulation and optimization of structural geometry [29], based on the concept that one can replace any continuum by an assemblage of simply shaped elements with well-defined force displacement and material relationships. In this paper, geometric and FE model for the same orthotropic plates is carried out using the ABAQUS software which is one of the popular FEM software and which has been used for wide range of study.…”

Numerical analysis of the in-plane shear behavior of commingled fiber glass–polypropylene composite reinforcement using hypoelastic constitutive model

“…12, 13 The understanding of the mechanical behavior of woven reinforcements is of great importance, as it provides a prediction of the final shape of the woven reinforcement subjected to different mechanical solicitations, during its shaping on the mold for forming. 6,14 It is advisable to know this behavior by an approach that is based at the same time on an experimental approach and on modeling work. This behavior is distinguished by the predominance of tensile stiffness over all other forms of stiffness.…”