Accession Number:

ADA076777

Title:

A Photoelastic Study of Surface-Flawed Plates Subjected to Biaxial Loadings.

Descriptive Note:

Master's thesis,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB

Personal Author(s):

Report Date:

1978-09-05

Pagination or Media Count:

93.0

Abstract:

A series of photoelastic experiments was performed on plate specimens containing semi-elliptical surface flaws and subjected to biaxial bending. Utilizing the three-dimensional stress freezing and slicing technique and the Schroedl-Smith method of analysis, Mode I and Mode II stress intensity factors were determined at the point of maximum flaw penetration and at the point the flaw intersects the plate surface. By varying the ratio of the bending moments perpendicular and parallel to the crack axis, the effect of biaxiality on the stress intensity factors was observed. Results indicated that both Mode I and Mode II stress intensity factors increased with a corresponding increase in biaxiality ratio and decreased with decreasing biaxiality ratio. Author

Subject Categories:

  • Statistics and Probability
  • Manufacturing and Industrial Engineering and Control of Production Systems
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE