American Society of Civil Engineers


Estimating Damage and its Influence on Fracture Toughness


by J. F. Labuz, L. Biolzi, and C. N. Chen

pp. 523-526

     Purchase Information
     Permissions for Reuse  

Document type: Conference Proceeding Paper
Part of: Engineering Mechanics (1992)
Abstract: To estimate damage in a quantitative manner, a technique used whereby six values of linear strain are measured on a material element as a function of hydrostatic pressure. The high precision data from three orthogonal planes enable the complete strain tensor to be determined. It is possible to close existing microcracks within the material by applying pressure in excess of 50 MPa. The information on damage is related to the fracture toughness of a microcracked solid (granite).


ASCE Subject Headings:
Assessment
Cracking
Damage
Hydrostatic pressure
Rocks
Strain

Author Keywords:
Rock
Fracture Mechanics
Chevron Bend Specimens - Computer-Controlled Fracture Tests - Fracture Toughness - Unload-Reload Cycles