Mode I fracture modeling of elastomer toughened epoxy adhesive joints

Mitsugu Todo, S. K. Chaturvedi, R. L. Sierakowski

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

An analytical model is developed to correlate the mode I fracture energy of toughened epoxy adhesive joints with microdamage mechanisms generated around a crack tip. The analytical expression for the mode I fracture energy is derived on the basis of total energy dissipation during crack extension. Three dominant damage modes, plastic shear band formation, plastic void growth, and plastic deformation of the entire matrix resin in a crack-tip region, are identified in the proposed model as the primary energy dissipation mechanisms. Numerical results show that the model can predict the effects of adhesive thickness on the mode I fracture energy of toughened adhesive joints. The analytical model involving material constants and micro structural variables should provide some guidelines toward achieving optimum fracture toughness for these types of adhesive joints.

Original languageEnglish
Pages (from-to)301-312
Number of pages12
JournalInternational Journal of Fracture
Volume85
Issue number4
DOIs
Publication statusPublished - Jan 1 1997

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Modelling and Simulation
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Mode I fracture modeling of elastomer toughened epoxy adhesive joints'. Together they form a unique fingerprint.

  • Cite this