Adhesively bonded joints are critical for the use of fiber-reinforced composite materials as structural elements. Even though they are critical, they are often not analyzed until further down in the design cycle because of the fine mesh required to represent the adhesive bond. In this work, we develop a macro finite element shell element which uses a 1D equilibrium solution to capture a fine field of adhesive stresses. This element can be seamlessly integrated into existing coarse finite element meshes to include adhesive stresses early on in the design of composite structural parts.

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Shell-Type Element for Composite Bonded Joint Design

  • Scott E. Stapleton

摘要

Adhesively bonded joints are critical for the use of fiber-reinforced composite materials as structural elements. Even though they are critical, they are often not analyzed until further down in the design cycle because of the fine mesh required to represent the adhesive bond. In this work, we develop a macro finite element shell element which uses a 1D equilibrium solution to capture a fine field of adhesive stresses. This element can be seamlessly integrated into existing coarse finite element meshes to include adhesive stresses early on in the design of composite structural parts.