A method for strength analysis of bolted joint of composite laminates

doi:10.19936/j.cnki.2096-8000.20241128.006

Abstract

Abstract: A development method of user defined element based on ABAQUS platform is proposed. A 2D FE model established using this method can simulate the nonlinear mechanical behavior of composite bolted joint. By fitting the load-displacement curve of the single bolted joint, the element behavior of user defined element are determined, which is applied to a two-dimensional finite element model of the multi-bolted joint to study the distribution of the bolt loads and the ultimate strength of the joint. Compared with the test results, the model results can accurately predict the distribution of bolt loads, damage evolution and ultimate strength of multi-bolted joint. This method has reliable results and high computational efficiency, and is suitable for engineering calculation and analysis of multi-bolted joint of composite laminate.

Key words: composite bolted joint, non-linear mechanical behavior, user defined element, bolt load distribution, joint strength

CLC Number:

TB332

NI Kaiqiang, MENG Maomao, XU Yixin. A method for strength analysis of bolted joint of composite laminates[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(11): 50-55.

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