A Dynamic Photoelastic Analysis of Stress Waves from Inclined Line Sources
Abstract
Dynamic photoelastic methods were employed to analyze the stresses produced in models of a bench face. The dynamic loading was accomplished with a uniformly distributed line charge which was inclined to the vertical face. The angle of inclination of the line charge was selected so that the front of either the S or P wave would be parallel to the vertical boundary of the bench face. The dynamic event was divided into several phases which included: The incident portion where the strain energy is carried to the bench face by means of the P wave and later by the S wave; the first reflection period where the P wave reflects from the vertical boundary; the interaction period where the reflected PP and PS waves reinforce the incoming S wave; the second reflection period where the S wave reflects from the vertical bench face; and finally the crack propagation period where cracks initiated at the line charge propagate into the field of the model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 15, 1972
- Accession Number
- AD0756260
Entities
People
- David C. Holloway
- James W. Dally
- William L. Fourney
Organizations
- University of Maryland