Analysis and experiment on bending performance of laser-welded web-core sandwich plates

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Sun, Yuping and Saafi, Mohamed and Zhou, Weili and Zhang, Chen and Li, Hui (2015) Analysis and experiment on bending performance of laser-welded web-core sandwich plates. Materials Today: Proceedings, 2 (suppl.). S279-S288. ISSN 2214-7853 (https://doi.org/10.1016/j.matpr.2015.05.038)

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Abstract

The bending performance is the main performance index of the sandwich structure. This paper is used to analyse and test showing that: the range of the elastic limit and the maximum bearing capacity is 25~30. kN and 34.9~54.8. kN, respectively; the average of bending stiffness and shear stiffness measured by test is 810. kN. m and 1717. kN/m, respectively; In elastic stage (U2 = 6 mm), plate material in the weld junction of web (n = 5)and face plates appear local yield, which shows that the most unfavorable area of sandwich panels is the weld junction of web and face plates.

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