Crack Propagation Studies in Brittle Materials.
Abstract
An analysis was made of cantilever-beam specimens subjected to end loads and moments for use in crack propagation studies. Included in this analysis were the effects of a plastic zone at the crack tip, beam rotation, and the viscoelastic response of the material. This analysis showed that application of a bending moment to the specimen rather than an end load provides a test in which the strain energy release rate is independent of crack length. Other advantages of this test configuration are that corrections for both shear and beam-rotation effects are not necessary. Results of this test on both glass and ceramics are reported. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 03, 1973
- Accession Number
- AD0764045
Entities
People
- D. R. Mulville
- P. W. Mast
- S. W. Freiman
Organizations
- United States Naval Research Laboratory