Modelling woven fabric constructions under hydrostatic pressure

Authors:
J. McCartney;B. K. Hinds;D. Kelly
Affiliations:
School of Mechanical and Manufacturing Engineering, Queens University of Belfast, Belfast, Northern Ireland, UK;School of Mechanical and Manufacturing Engineering, Queens University of Belfast, Belfast, Northern Ireland, UK;School of Mechanical and Manufacturing Engineering, Queens University of Belfast, Belfast, Northern Ireland, UK
Venue:
Finite Elements in Analysis and Design
Year:
2006

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Abstract

The paper outlines a modelling technique that predicts how woven fabric constructions will change shape when subjected to the application of hydrostatic pressure. The initial specification required for the technique is in terms of a triangulated pattern for each fabric pieze in the construction and an initial 3D location for each node. Fabric types are characterised by look-up tables describing the warp and weft tensile and shear behaviours. The modelling proceeds by seeking to find the minimum energy state of the construction where material strain energy is balanced by the energy required to inflate the construction by the application of hydrostatic energy. Examples are provided to illustrate the operation of the technique.