APPLICATION OF FRACTURE MECHANICS TO ADHESIVE JOINTS. PART I. FRACTURE TOUGHNESS OF ALUMINUMEPOXY-ALUMINUM JOINTS IN A GI MODE.
Abstract
Fracture mechanics is a relatively new topic that makes it possible to define toughness of material in the presence of flaws. The effect on fracture toughness of joint geometry, section size, strain rate and fracture mode are discussed. The over-riding factor in establishing the toughness of any joint is the speed with which the crack propagates along the glue line. Slow propagating cracks result in high toughness, whereas cracks that abruptly jump along the glue line result in low toughness. Changing the fracturing mode from tensile to forward shear results in an order of magnitude increase in toughness. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1963
- Accession Number
- AD0424287
Entities
People
- E. J. Ripling
- R. L. Patrick
- S. Mostovoy
Organizations
- Materials Research Laboratory