Accession Number:
ADA374056
Title:
Effects of Artificial Cracks and Poisson's Ratio Upon Photoelastic Stress Intensity Determination
Descriptive Note:
Corporate Author:
VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING SCIENCE AND MECHANICS
Personal Author(s):
Report Date:
1974-11-01
Pagination or Media Count:
28.0
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 Savins 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 Poissons Ratio Effect.
Subject Categories:
- Mechanics