Paper Title:
Failure Characterisation of Heavy Tow Braided Composites Using Digital Image Correlation (DIC)
  Abstract

An extensive test campaign has been conducted to characterise the different failure modes observed in heavy tow (24k) carbon and glass braided composites. The Digital Image Correlation (DIC) technique was used to obtain complete strain field measurement of large strains to failure. Failure in the fibre direction, under tension and compression loading were investigated; in the tension direction relatively large strains to failure were measured due to tow straightening damage mechanisms. Another important test is tensile shear loading which can undergo very large strains to failure due to fibre re-orientations in the loading direction. This latter, so-called ‘scissoring’ mechanism, has been quantified through changes of fibre angle during the complete loading history. Data gathered from coupon testing was used to characterise a material damage, with failure, model for the heavy tow braids, using a general composite damage model available in the explicit Finite Element (FE) code PAM-CRASHTM. Finally, four-point bending tests on braided carbon and glass composite beams with full field strain measurements to failure was carried out and used to validate the numerical model. A good agreement between simulation and experimental results was obtained.

  Info
Periodical
Edited by
Patrick Sean Keogh
Pages
399-406
DOI
10.4028/www.scientific.net/AMM.5-6.399
Citation
M. Fouinneteau, A.K. Pickett, "Failure Characterisation of Heavy Tow Braided Composites Using Digital Image Correlation (DIC)", Applied Mechanics and Materials, Vols. 5-6, pp. 399-406, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xi Tao Zheng, Qin Sun, Ying Nan Guo, Ya Nan Chai
Abstract:Load response and failure modes of three-dimensional (3-d) four-directional braided composite lugs were studied analytically and...
1948
Authors: Ying Sun, Jia Lu Li, Li Chen, Ying Shao
Abstract:This paper investigated the mechanical properties and the relationships between fiber architecture and the composites properties of...
1237
Authors: Ping Zhang, Liang Jin Gui, Zi Jie Fan, Jian Ma, Jing Yu Liu
Chapter 6: Engineering Materials and Functional Materials
Abstract:Braided composite tubular structures are of interest as viable energy absorbing components to improve vehicle passive safety. Unfortunately,...
659
Authors: Jakub Antoš, Václav Nežerka, Pavel Tesárek
Chapter 5: New Methods of Researching and Designing in Structural Mechanics and Mechanics of Constructions
Abstract:In order to develop a constitutive material model and to verify its consistency when implemented in a computational code, it is necessary to...
337