Accession Number:

AD0770545

Title:

A Dynamic Photoelastic Investigation of Explosive Induced Fracture

Descriptive Note:

Final rept.

Corporate Author:

MARYLAND UNIV COLLEGE PARK DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Dally, James W.
• Fourney, William L.
• Holloway, David C.

Report Date:

1973-09-01

Pagination or Media Count:

187.0

Abstract:

The report describes the results of four different photoelastic studies on fundamental problems associated with rock removal by blasting with explosives. Also included are model studies using charcoal granite specimens with either holographic or high speed framing cameras to record the dynamic behavior.

Descriptors:

• *PHOTOELASTICITY
• *ROCK MECHANICS
• BLAST
• CRACKS
• EXCAVATION
• EXPLOSIVE CHARGES
• HOLOGRAPHY
• MINING ENGINEERING
• ROCK
• STRESS WAVES

Subject Categories:

• Mining Engineering
• Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE