Eventos Anais de eventos
MECSOL 2019
7th International Symposium on Solid Mechanics
Mixed-mode bending (MMB) test analysis of bi-material bonded joints
Submission Author:
Marcio Moreira Arouche , RJ , Brazil
Co-Authors:
Marcio Moreira Arouche, Sofia Teixeira de Freitas, Silvio Romero de Barros
Presenter: Marcio Moreira Arouche
doi://10.26678/ABCM.MECSOL2019.MSL19-0174
Abstract
The dissemination of composite materials introduces applications of hybrid structures with composite and metal parts. The development of reliable methodologies to evaluate the performance of these structures is required. In this work, the mixed-mode fracture behavior of a bi-material adhesively bonded joint is investigated. A new strain-based equivalent geometry for the mixed-mode bending (MMB) test specimen was proposed and tested. A finite element model of the test was developed and validated with experiments. The virtual crack closure technique (VCCT) model of the MMB test with a bi-material joint produced non-converged fracture mode partitioning. Results showed the great potential of the new methodology for testing mixed-mode fracture of bi-material bonded joints.
Keywords
bi-material bonded joints, mixed mode fracture, asymmetric MMB test, finite elements method
