Shell–solid Coupling Analysis for Mechanical Behavior of Complex Thin-plate Weld Structure

Complex thin-plate structures such as ships and bridges are welded together with numerous thin plates stiffeners. Thermal elastic-plastic analysis based on the finite element method is a fundamental tool for predicting welding deformations residual stresses in large steel structures. The shell-solid coupling can improve scale efficiency compared to solid method. This study aims introduce into mechanical analyses of computation modeling. guideline use proposed was also investigated. coupled constructed multipoint constraint technique which erases degrees freedom at interface. It applied mechanics T-joint model validate accuracy analysis. deformation panel structure car-carrier ship. results revealed that computing time less than 30 percent conventional FEM has almost same techniques. could achieve more efficient