Stress-intensity factor and crack opening for a linearly viscoelastic strip with a slowly propagating central crack | Zendy

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Stress-intensity factor and crack opening for a linearly viscoelastic strip with a slowly propagating central crack

Author(s) -

Hans Mueller

Publication year - 1971

Publication title -

international journal of fracture mechanics

Language(s) - English

Resource type - Journals

eISSN - 2214-7306

pISSN - 0020-7268

DOI - 10.1007/bf00183801

Subject(s) - viscoelasticity , stress intensity factor , superposition principle , crack closure , materials science , crack tip opening displacement , shear (geology) , crack growth resistance curve , mechanics , stress concentration , series (stratigraphy) , fracture mechanics , structural engineering , mathematical analysis , mathematics , composite material , physics , geology , engineering , paleontology

The stress-intensity factor and the size of the crack opening have been calculated for a linearly viscoelastic strip with a slowly propagating central crack. The edges of the infinitely long strip are displaced normal to the crack and both clamped and shear-free strip edges have been investigated. The results are based on the solution to the problem of a suddenly loaded strip with a stationary crack. The resulting integral equation has been solved numerically for arbitrary crack length and analytical solutions in form of asymptotic series are given for crack length up to about half the strip width. The response to a propagating crack is found by superposition.

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