Loosening and Strength Failure Calculation Models of Screwed Joints Under Complex Working Condition Loading

Yi-min, MO; Guo, Shenghui; Qin, Xiongzhen; Qin, Jian; Gao, Xin; Zhan, Kui

doi:10.1007/s40997-020-00375-4

Cited by 1 publication

(1 citation statement)

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“…Jaspart 7 investigated the failure of the assembly considering the plasticization of the bolted joint and the assembled parts. In a recent study, Mo 8 developed a method of auditing failure calculation models of screwed joints under complex working condition loading with the research and verification scheme. Based on the geometric data of the assembly, Schauman 9 treated the assembly of eccentric symmetrical flanges to check an approach for bolt deformation.…”

Section: Introductionmentioning

confidence: 99%

Mechanical strength of highly preloaded bolts affected by the ovalization of an aircraft wheel

Haddar

Daidié

Rodriguez

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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This work presented in this paper concerns the modeling of the tensile and bending behavior of bolts in an airplane wheel. The design of a very rigid airplane tire means that the airplane wheel must be separated into two parts. In order not to have a separation between the two parts, several bolts with high preload are used. The main objective of this work is to predict the mechanical behavior of this assembly in a preliminary design phase with geometrical and global mechanical data. To achieve this objective, a simplified semi-numerical 1D model is developed. The complex geometry of the wheels is modeled by axisymmetric elements, while beam elements define the geometries and mechanical behavior of the bolts. The model is improved in non-axisymmetric cases to include the ring effect due to the wheel ovalization. Different cases are simulated (inflation and rolling). For each load case, the most stressed fastener is examined. Then, a comparison between its static and fatigue stress results and those of the 3D finite element reference model considered is analyzed for the validation of the developed tool. The semi-numerical model is used in the preliminary design phase and permits the geometric and mechanical properties of the aircraft wheel and fasteners to be defined so as to find the best assembly configuration that prevents separation.

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Section: Introductionmentioning

confidence: 99%