Crack Growth under Plane Stress Conditions in an Elastic Perfectly-Plastic Material.
Abstract
Mode-I crack growth under conditions of generalized plane stress has been investigated. It has been assumed that near the plane of the crack in the loading zone, the simple stress components corresponding to a central fan field maintain validity up to the elastic-plastic boundary. By the use of expansions of the particle velocities in the coordinate y, and by matching of the relevant stress components and particle velocities to the dominant terms of appropriate elastic fields at the elastic-plastic boundary, a complete solution has been obtained for e(y) in the plane of the crack. The solution is valid from the propagating crack tip up to the moving elastic-plastic boundary. A self-similar crack nucleating at a point and steady-state crack propagation have been considered as special cases.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1982
- Accession Number
- ADA124479
Entities
People
- Jan D. Achenbach
- V. Dunayevsky
Organizations
- Northwestern University