Establishing a new Forming Limit Curve for a flax fibre reinforced polypropylene composite through stretch forming experiments

Date

2015

Authors

Wang, Wentian
Lowe, Adrian
Davey, Sebastian
Akhavan Zanjani, Nima
Kalyanasundaram, Shankar

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Abstract

In developing an understanding of the failure in natural fibre reinforced polymer composites, the failure limits of this class of the material system are required. It is found that the conventional Forming Limit Curve is not suitable to predict the failure initiated in the natural fibre composite as principal strains cannot differentiate the strain on the flax fibres and the polypropylene matrix. This study proposes a new Forming Limit Curve for the composite which expresses limiting fibre strain as a function of forming mode depicted by the ratio of minor strain to major strain. The new Forming Limit Curve, along with the Maximum Strain failure criterion have been successfully implemented in FEA simulations, and numerical simulations suggest that the former is more accurate. The current work provides an innovative method to predict the onset of failure in natural fibre composites, which can be applied in composite forming and structural design.

Description

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Citation

Source

Composites Part A: Applied Science and Manufacturing

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1016/j.compositesa.2015.06.021

Restricted until

2037-12-31