Title: FATIGUE BEHAVIOUR OF MULTILAYER BRAIDED FABRIC REINFORCED LAMINATES
Page Range: p.73-81
Author(s): Zheng-Ming Huang; Teng X C; Ramakrishna S
File size: 290K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 13
Issue No: No. 1
Abstract
This paper investigates the fatigue behaviour of laminated composites made from an epoxy matrix and four layers of flat regular braided carbon fibre fabrics of different braiding angles. Static tensile and tension-tension fatigue tests were conducted for those laminates and detailed fatigue data are reported. Failure mechanisms for the tested laminates are also characterised. When a laminate was fabricated using multilayers of braided fabric laminas of the same braiding angle, no delamination was found. Thus, a braided fabric laminate would be more delamination resistant than an angle plied laminate with the same angle. However, it was found that when the laminate was made of combined laminas with different braiding angles, significant delamination can be found because of the existence of sufficiently high shear stresses between the combined layers. This is claimed to suggest that in order to diminish delamination, a stacking of braided fabric laminae of different braiding angles should be avoided. 16 refs.
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