SYMPOSIA PAPER Published: 01 January 1983
STP37091S

Influence of Specimen Size and Stress Field on Energy Loss During a Fracture Event

Source

The influence of specimen size and stress field on energy loss away from the crack tip was studied using dynamic photoelasticity and fracture mechanics. The method of analysis utilized a balance of energy in the system. Experiments were conducted with three different sizes of modified compact tension (MCT) specimens, and it was found that energy loss increased with specimen size. Energy loss increased from 34 percent of total available energy to 48 percent as the specimen size was doubled.

The influence of stress field on energy loss was modelled by using different starter crack lengths in MCT specimens. It was observed that energy loss as well as crack propagation behavior are dependent on the stress field into which the crack propagates.

Author Information

Shukla, A
University of Rhode Island, Kingston, R.I.
Fourney, WL
University of Maryland, College Park, Md.
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Details
Developed by Committee: E08
Pages: 51–64
DOI: 10.1520/STP37091S
ISBN-EB: 978-0-8031-4857-4
ISBN-13: 978-0-8031-0728-1