The peeling strength analysis of sandwich structure with cohesive element model

Abstract

In this study, cohesive element models are applied to the strength analysis of the sandwich structure. As the sandwich structures have been used increasingly in the field of automotive light-weighting, the strength analysis of the sandwich structures becomes an important research topic. Cohesive Zone Models (CZMs) can be used to predict the initiation and propagation of the material cracks. Therefore, the peeling strength of the sandwich structure is calculated and analyzed by the traction-separation law with various CZMs. Experiments have been performed to verify the effectiveness of the sandwich structure via cohesive element models analyzation.

Keywords

• cohesive element
• glass fiber composite
• aramid honeycomb
• simulation analysis