Degradation and failure analysis of bolted joints under transverse loading

There are a huge number of bolted joints used in engineering applications. However, unreasonable design and use may lead to degradation failure the connected structure. Herein, finite element analysis method is investigate influence various factors on mechanical properties joints. To simulate actual assembly loading process, different steps were considered, given as: tightening step, initial lose step step. In transverse load applied obtain force-displacement curve. Structural parameters, i.e. clamping force, effective clamp length clearance, coefficients friction all contact surfaces considered analysis. The results showed that performance joint under exhibits stages, this agrees well with our previous experimental results. Through curves, characterization parameters for can be extracted, such as curve form, tangential stiffness, slip distance, threshold, etc. evaluation integrates process from service, which helps provide reference reliability improvement