Geometric modeling of 3D woven preforms in composite T-joints

Yan, Shibo and Zeng, Xuesen and Brown, Louise and Long, Andrew (2017) Geometric modeling of 3D woven preforms in composite T-joints. Textile Research Journal. ISSN 0040-5175

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A common method to fabricate net-shaped three-dimensional (3D) woven preforms for composite T-joints is to weave
flat 3D preforms via a standard weaving machine with variation in binder yarn path and then separate the preform in the form of a bifurcation. Folding introduces fiber architecture deformation at the 3D woven bifurcation area. In this paper, a geometric modeling approach is proposed to represent the realistic fiber architecture, as a preprocessor for finite element analyses to predict composite structural performance. Supported by X-ray micro-computed tomography (mCT), three important deformation mechanisms are observed including yarn stack shifting, cross -section bending, and cross-section flattening resulting from the folding process. Furthermore, a set of mathematical formulae for simulation of the deformations in the junction region are developed and satisfactory agreement is observed when compared with mCT scan results.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 16 Jun 2017 04:33
Last Modified: 22 Apr 2018 23:54
Uncontrolled Keywords: T-joint; 3D woven fabrics; geometric modeling; deformation
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1177/0040517517712098

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