Simulation of Circumferential Pull-off Failure of Composite Foam Sandwich Tube under Axial Load

Abstract:

Horizontal fibers of the outer layers of composite foam sandwich tube affected the compressive capacity of the tube under axial load. In order to clarify the strain distributions when the horizontal fibers of the outer layers were pulled off, dynamics finite element software LS-DYNA was used to simulate the model. Variation of hoop strain and axial strain of elements were observed. The simulation showed that the hoop strain of the composite tube increased gradually from the bottom and became the maximum in the middle of the member, which caused the pull-off damage and agreed with the test results. Strain along the circumferential direction of same height on the tube was average, and the same to the axial strain.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 649-652
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.649
• Online since: January 2014
• Authors: Feng Li*, Hong Bing Liu, Kang Xu, Yan Mei Luo
• Keywords: Foam Sandwich Tube, Hoop Strain, Numerical Simulation, Pull-Off Failure

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