Effect of localized strain on fracture of high-strength structural steel with varying stress stiffness; Physical Mesomechanics; Vol. 13, iss. 3-4, May-Aug.

Effect of localized strain on fracture of high-strength structural steel with varying stress stiffness; Physical Mesomechanics; Vol. 13, iss. 3-4, May-Aug.

Détails bibliographiques
Parent link:Physical Mesomechanics
Vol. 13, iss. 3-4, May-Aug..— 2010.— P. 173-177
Auteur principal: Derevyagina L. S.
Autres auteurs: Panin V. E. Viktor Evgenyevich, Gordienko A. I.
Résumé:The paper studies the mechanical properties and configuration of plastic zones in notched high-strength structural steel under tension. Quantitative analysis of the plastic zones is made by constructing strain intensity distribution patterns with the use of the television-optical measuring complex TOMSC. Fracture associated with plastic flow is analyzed by comparing fractographs and distributions of strain characteristics. It is found that the fracture originates in a region with maximum strain intensity. It is shown that the mechanisms of plastic flow in high-strength steel specimens with Π < 1.58 and Π > 4.65, where Π is the index of initial stress stiffness, differ considerably. It is demonstrated that the high-strength steel specimens are fractured by quasibrittle mechanisms; however, ductile micromechanisms through pore nucleation and growth remain operative at all stages of fracture
В фонде НТБ ТПУ отсутствует
Langue:anglais
Publié: 2010
Sujets:
труды учёных ТПУ
Format: Chapitre de livre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=597695

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