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Cohesive cracking in negative geometries
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors
Wang, S.
Gharamti, I. E.
Dempsey, J. P.
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en
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Engineering Fracture Mechanics, Volume 221
Abstract
An isolated cohesive crack loaded by a central concentrated load and a cohesive edge crack loaded by concentrated loading at the crack mouth are examined. In the cohesive zones of both cases, rectangular softening and linear softening are investigated. A distinct peak load does not occur for these negative geometries. The traction-free crack grows at the instant that the process zone is fully developed. In a negative geometry, in order to maintain traction-free crack propagation, the load ratio must always increase, ensuring that stable crack growth always occurs.
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Wang, S, Gharamti, I E & Dempsey, J P 2019, 'Cohesive cracking in negative geometries', Engineering Fracture Mechanics, vol. 221, 106681. https://doi.org/10.1016/j.engfracmech.2019.106681