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REVIEW OF COUPLE-STRESS THEORY OF ELASTICITY AND ELASTIC THEORY OF FRACTURE MECHANICS.
NEW MEXICO UNIV ALBUQUERQUE BUREAU OF ENGINEERING RESEARCH
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The purpose of the research was to study both the stress intensity and the energy criteria of elastic fractures in order to incorporate the couple-stress effect which is induced by high stress gradient. The high stress gradient will be present whenever there is discontinuity in material geometry or constitution. Initial effort was conducted on a systematic reviewing and evaluation of the couple-stress theory of elasticity and the elastic theory of fracture mechanics.
APPROVED FOR PUBLIC RELEASE