Photomechanics Methods for Inelastic Stress Analysis.
Abstract
In this report, complete mechanical and optical properties are presented for a polyester material which is suitable for model studies in the inelastic range of material response. Data from a series of uniaxial tensile and compressive tests, together with data from a series of pressurized thin-walled cylinder tests, indicates that the fringe order at a point in the material is a function of the instantaneous principal strain difference at the point. Under load, the function is non-linear and multi-valued. Upon removal of the load, however, the retained fringe order is a single-valued linear function of the principal strain difference. Data from the uniaxial and cylinder tests also indicates that the material follows a modified von Mises yield criterion which accounts for differences in tensile and compressive yield strengths.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1976
- Accession Number
- ADA022613
Entities
People
- Loren W. Zachary
- William F. Riley
Organizations
- Iowa State University