Dynamic Crack Branching - A Photoelastic Evaluation,
Abstract
A necessary and sufficient condition for crack branching based on a crack branching stress intensity factor, K sub Ib, accompanied by a minimum characteristic distance of r sub c is proposed. This crack branching criterion is evaluated by dynamic photoelastic experiments involving crack branching of six single-edged notch specimens and six wedge-loaded rectangular double cantilever beam specimens. Consistent crack branching at K sub Ib = 2.04 Mpa(sq. rt. m) and r sub c equal 1.3 mm verified this crack branching criterion. The crack branching angle predicted by this crack branching criterion agreed well with those measured in the crack branching experiments. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1982
- Accession Number
- ADA114525
Entities
People
- Albert S. Kobayashi
- B. S.-j. Kang
- M. Ramulu
Organizations
- University of Washington