Transient stress of steel phase transformation and transformation-induced fatigue

Karalis, DG; Pantelis, DI; Papazoglou, VJ

dc.contributor.author	Karalis, DG	en
dc.contributor.author	Pantelis, DI	en
dc.contributor.author	Papazoglou, VJ	en
dc.date.accessioned	2014-03-01T01:34:48Z
dc.date.available	2014-03-01T01:34:48Z
dc.date.issued	2010	en
dc.identifier.issn	0167-8442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20867
dc.subject	Steel phase change	en
dc.subject	Strain energy density	en
dc.subject	Thermal strain	en
dc.subject	Transformation fatigue	en
dc.subject	Transient stress	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Phase Change	en
dc.subject.other	Strain energy density	en
dc.subject.other	Thermal strain	en
dc.subject.other	Transformation fatigue	en
dc.subject.other	Transient stress	en
dc.subject.other	Finite element method	en
dc.subject.other	Intermetallics	en
dc.subject.other	Phase transitions	en
dc.subject.other	Strain energy	en
dc.subject.other	Machine design	en
dc.title	Transient stress of steel phase transformation and transformation-induced fatigue	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.tafmec.2010.06.013	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.tafmec.2010.06.013	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Expansion changes the size of any machine element and can thus generate severe stress or distortion failures during its operation if this phenomenon is not taken into account during the design process. On the other hand, most steels contract during heating within a short temperature range as a result of microstructural phase transformations. This transient contraction may generate further short- and long-term dysfunction of a metallic structure. The current paper focuses on this issue: investigating the effects of the microstructural transformation on the transient stress response of a metallic structure. Analysis is carried out by means of finite element simulation employing material data from typical constructional steel. The paper emphasizes the necessity of considering material phase changes when dealing with the transient stress or displacement response of a metallic structure and demonstrates the differences obtained when the transformation effects are ignored or accounted for in the design process. The mechanism of transformation-induced fatigue is thus discussed and proposed to the engineering community for establishment. (C) 2010 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Theoretical and Applied Fracture Mechanics	en
dc.identifier.doi	10.1016/j.tafmec.2010.06.013	en
dc.identifier.isi	ISI:000282855000005	en
dc.identifier.volume	54	en
dc.identifier.issue	1	en
dc.identifier.spage	37	en
dc.identifier.epage	43	en