Topografie lomových ploch při ohybově-torzním namáhání

Slámečka, Karel; Pokluda, Jaroslav; Ponížil, Petr; Major, Štěpán; Šandera, Pavel

dc.title	Topografie lomových ploch při ohybově-torzním namáhání	cs
dc.title	On the topography of fracture surfaces in bending-torsion fatigue	en
dc.contributor.author	Slámečka, Karel
dc.contributor.author	Pokluda, Jaroslav
dc.contributor.author	Ponížil, Petr
dc.contributor.author	Major, Štěpán
dc.contributor.author	Šandera, Pavel
dc.relation.ispartof	Engineering Fracture Mechanics
dc.identifier.issn	0013-7944 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued	2008-02/2008-03
utb.relation.volume	75
utb.relation.issue	3-4
dc.citation.spage	760
dc.citation.epage	767
dc.event.title	International Conference on Crack Paths
dc.event.location	Parma
utb.event.state-en	Italy
utb.event.state-cs	Itálie
dc.event.sdate	2006-09
dc.type	article
dc.type	conferenceObject
dc.language.iso	en
dc.publisher	Pergamon Elsevier Science Ltd.	en
dc.identifier.doi	10.1016/j.engfracmech.2007.01.018
dc.relation.uri	https://www.sciencedirect.com/science/article/pii/S0013794407000586
dc.subject	Cr-Al-Mo ocel	cs
dc.subject	lomová plocha	cs
dc.subject	ohybově torzní namáhání	cs
dc.subject	bending-torsion fatigue	en
dc.subject	quantitative fractography	en
dc.subject	roughness parameters	en
dc.description.abstract	Byly připraveny lomové plochy vznikající při ohybově-torzním namáhání vzorků připravených z vysokopevnostních nízkopříměsových Cr-Al-Mo ocelí. Byly analyzovány topologické charakteristiky těchto ploch.	cs
dc.description.abstract	Fracture surfaces generated under combined bending-torsion fatigue loading in both the low-cycle fatigue and the high-cycle fatigue regions of specimens made of high-strength low-alloy Cr-Al-Mo steel are analysed in terms of topographical characteristics. Parameters reported here are the root mean square roughness, the number of peaks per unit length and the Hurst exponent quantifying various aspects of surface topography. As a main result of the analysis, the critical portion of torque beyond which the character of fracture topography significantly changes is estimated to be within the range of 40-50% of a total loading. (C) 2007 Published by Elsevier Ltd.	en
utb.faculty	Faculty of Technology
dc.identifier.uri	http://hdl.handle.net/10563/1001851
utb.identifier.rivid	RIV/70883521:28110/08:63507017!RIV09-GA0-28110___
utb.identifier.obdid	43856972
utb.identifier.scopus	2-s2.0-36249008011
utb.identifier.wok	000252231800040
utb.source	d-wok
dc.date.accessioned	2011-08-09T07:34:05Z
dc.date.available	2011-08-09T07:34:05Z
utb.contributor.internalauthor	Ponížil, Petr
utb.fulltext.affiliation	K. Slámečka a,, J. Pokluda a, P. Ponížil b, Š . Major a, P. Šandera a a Institute of Engineering Physics, Brno University of Technology, Technicka 2896/2, 616 69 Brno, Czech Republic b Department of Physics and Materials Engineering, Tomas Bata University in Zlin, sq. TGM 588, 762 72 Zlin, Czech Republic Corresponding author. Tel.: +420 5 4114 2812; fax: +420 5 4114 2842. E-mail address: [email protected] (K. Slámečka).
utb.fulltext.dates	Received 30 November 2006 received in revised form 23 January 2007 accepted 30 January 2007 Available online 4 February 2007
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utb.fulltext.sponsorship	The authors acknowledge the financial support provided by the Czech Science Foundation in the frame of the Project no. GA106/05/0550.
utb.fulltext.projects	GACR GA106/05/0550