Model of the connecting-rod bolt load-carrying capacity based on the 3s-fe engine example

Ensuring quality of the mechanical engineering products and protecting consumer rights appears to be an urgent task. However, scientific publications are missing the substantiated data on the design standards assessment as part of the motor vehicles quality expertise. The paper develops an applied mathematical model of the connecting-rod bolt load-carrying capacity based on the known classical analytical dependencies and fundamental principles of the deformable solid mechanics. Scanning microscopy was used to show characteristic features of the chemical elements distribution in the connecting-rod fatigue crack zone. An example is provided in calculating the connecting-rod bolt load-carrying capacity when analyzing causal relationship between the design standards and the failure of an internal combustion engine as part of the motor vehicle quality expertise. The results obtained could be introduced in expert assessment of the vehicles and machines bolts to establish their destruction mechanism and, ultimately, the cause of failure of the unit or assembly.
EDN: ZDGKDQ, https://elibrary/zdgkdq

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