Effects of Artificial Cracks and Poisson's Ratio Upon Photoelastic Stress Intensity Determination
Abstract
A series of stress freezing photoelastic experiments were performed with multiple replications upon edge cracked strips for three types of "cracks" in current use: i) Rectangular slots 0.152 mm wide, ii) 1.59 mm wide slots terminating in a 30 degrees vee notch of approximately 0.025 mm root radius, and iii) Natural cracks (approximately 0.0025 mm root radius). Stress intensity results were compared with the Gross-Srawley Analysis in addition (i) was compared with Savin's solution. It was concluded that (ii) and (iii) yield the same results but (i) was slightly higher. Both (ii) and (iii) were about 12% higher than the Gross-Srawley results. This is conjectured to be related to a Poisson's Ratio Effect.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1974
- Accession Number
- ADA374056
Entities
People
- C. W. Smith
- J. J. Mcgowan
- M.. Jolles
Organizations
- Virginia Tech