Two Compliance Expressions for Arbitrary Locations Across a Crack in a CT (Compact Type) Specimen.
Abstract
Two empirical equations were developed that express displacement across the crack in a compact type specimen as a function of crack length and distance behind the crack tip. The coefficients in the equations were generally determined by least square error fit to crack surface displacements obtained from finite element analysis. In one expression, simple types of functions which depend on either crack length or distance from the crack tip were combined to form an equation that is similar to a series expansion in two separate variables. The second equation was developed from a combination of the far field behavior of the displacements and a near field fit which incorporates the near tip analytical displacement behavior. Both equations have application to a broad range of values of crack length and distance from the crack tip. Either equation can be used in conjunction with measurements of displacement across the crack surface to indirectly determine the crack length. Keywords: Fracture mechanics; Tables(Data).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1985
- Accession Number
- ADA163369
Entities
People
- Noel E. Ashbaugh
- P. R. Enderle
Organizations
- University of Dayton