Variable amplitude loading in en8 (080m40) steel: a detailed experimental study of crack growth

Show simple item record Ng'ang'a, S. P. James, M.N. 2012-09-24T12:41:19Z 2013-07-19T07:42:42Z 2012-09-24T12:41:19Z 2013-07-19T07:42:42Z 2007-04-02
dc.identifier.citation en_US
dc.identifier.issn 1460-2695
dc.description Abstract article from en_US
dc.description.abstract The load interaction effects that occur under variable amplitude loading conditions following single peak overloads, low-high blocks and high-low blocks have been investigated on a commonly used structural steel. A detailed investigation has been carried out on long cracks which aims at developing and assessing the efficacy of a simple predictive model based on closure and plastic zone effects. The material was tested in a quenched and tempered condition. All the tests were carried out in the four point bending mode, in both the Paris regime and near the threshold, with overloads ranging from 10% to 100%. An attempt to relate crack closure to crack growth rates in the transient growth rate region (which follows a load change) was made. The trends observed for a wide range of loading parameters are presented. en_US
dc.language.iso en en_US
dc.publisher WILEY en_US
dc.relation.ispartofseries Fatigue & Fracture of Engineering Materials & Structures;Vol 19 Issue 2-3
dc.subject Crack closure en_US
dc.subject Variable amplitude loading en_US
dc.subject Medium carbon (En8) steel en_US
dc.title Variable amplitude loading in en8 (080m40) steel: a detailed experimental study of crack growth en_US
dc.type Article en_US

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