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Asymptotic crack tip fields for dynamic fracture of linear strain-hardening solids
KTH, Superseded Departments, Solid Mechanics.ORCID iD: 0000-0001-8699-7910
KTH, Superseded Departments, Solid Mechanics.ORCID iD: 0000-0002-0307-8917
1988 (English)In: International Journal of Solids and Structures, ISSN 0020-7683, E-ISSN 1879-2146, Vol. 24, no 11, 1141-1158 p.Article in journal (Refereed) Published
Abstract [en]

Asymptotic crack tip fields, for dynamic crack propagation in an elastic-plastic material, have been calculated. The material is characterized by J2flow theory with linear-strain hardening. The possibility of plastic reloading on the crack flank is taken into account. Numerical results for the strength of the crack tip singularity, the angular positions of elastic unloading and possible plastic reloading regions, and the angular variation of the stress and velocity fields, are presented as functions of the crack tip speed and the ratio between tangent modulus and elastic modulus. Calculations have been performed for crack tip speeds below a certain limit velocity which depends on the tangent modulus and the loading conditions. The different loading modes which have been studied are modes I and II (plane strain and plane stress) and mode III (antiplane strain).

Place, publisher, year, edition, pages
1988. Vol. 24, no 11, 1141-1158 p.
National Category
Mechanical Engineering Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-25487DOI: 10.1016/0020-7683(88)90011-XISI: A1988R517600005OAI: oai:DiVA.org:kth-25487DiVA: diva2:358752
Note
QC 20101025Available from: 2010-10-25 Created: 2010-10-25 Last updated: 2017-12-12Bibliographically approved

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Publisher's full texthttp://www.sciencedirect.com/science/article/B6VJS-482GMNJ-19P/2/25fa237871240196baa2e029f4b63629

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Östlund, SörenGudmundson, Peter

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