Distortion analysis and optimization of grillage structure assembly process by finite element inherent strain method (FE-ISM)-part 1: connector element as a new weld interface model

Key Points

• Connector elements were introduced as a novel weld interface model for optimization.
• The finite element inherent strain method was used to analyze distortions in the assembly process.
• Optimization resulted in reduced distortion during the assembly of grillage structures, with improvements noted.
• Validating the model demonstrates significant potential for enhanced efficiency in structural assembly.