Study on Tensile Mechanical Behavior of Composite T-Joints

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Based on three kinds of composite T-joints with different connection way for tension test outside the plane, it was obtained contrastively that how the ordinary adhesive, Z-pin reinforcement and stitching reinforcement three different fitting influence tensile strength, damage failure process and failure mode of composite T-joints. The test results showed that compared with ordinary adhesive connection mode, tensile strength of the Z-pin reinforcement and stitching reinforcement T-joints increased by 13.6% and 11.4%, respectively; and the largest deformation increased by 19.2% and 15.1%, respectively. After reaching maximum load condition, the ordinary adhesive T-joints had brittle failures, but Z-pin reinforcement and stitching reinforcement T-joints all showed that the ductile damage behavior, corresponding to the load-displacement curve appeared saw-tooth wave platform. Obviously, the Z-pin reinforcement T-joints had the most significant reinforcement effect on tensile properties of composite laminates T-joints.

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Periodical:

Edited by:

Qingsong Mei

Pages:

146-151

Citation:

Z. L. Liu et al., "Study on Tensile Mechanical Behavior of Composite T-Joints", Advanced Materials Research, Vol. 1142, pp. 146-151, 2017

Online since:

January 2017

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$41.00

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