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

Autor:	Shankar Kalyanasundaram, Wentian Wang, Sebastian Davey, Nima Akhavan Zanjani, Adrian Lowe
Rok vydání:	2015
Předmět:	Polypropylene Work (thermodynamics) Materials science Strain (chemistry) Composite number Finite element method Flax fibre chemistry.chemical_compound chemistry Mechanics of Materials Ceramics and Composites Polymer composites Limit (mathematics) Composite material
Zdroj:	Composites Part A: Applied Science and Manufacturing. 77:114-123
ISSN:	1359-835X
DOI:	10.1016/j.compositesa.2015.06.021
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5454426bb42a7745b81aa56351db5346 https://doi.org/10.1016/j.compositesa.2015.06.021 Zobrazit plný text záznamu Full Text from ScienceDirect