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Topografie lomových ploch při ohybově-torzním namáhání

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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: slamecka@fme.vutbr.cz (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
utb.fulltext.references [1] Schijve J. Fatigue of structures and materials in the 20th century and the state of the art. Int J Fatigue 2003;25(8):679–702. [2] Socie DF, Marquis GB. Multiaxial fatigue. Warrendale: SAE Int.; 2000. [3] Pook LP. Crack paths. Southampton: Wit Press; 2002. [4] Carpinteri A, Spagnoli A, Vantadori S. An approach to size effect in fatigue of metals using fractal theories. Fatigue Fract Engng Mater Struct 2002;25(7):619–27. [5] Carpinteri A, Spagnoli A. A fractal analysis of size effect on fatigue crack growth. Int J Fatigue 2004;26(2):125–33. [6] Vaziri A, Nayeb-Hashemi H. The effect of crack surface interaction on the stress intensity factor in Mode III crack growth in round shafts. Engng Fract Mech 2005;72(4):617–29. [7] Pokluda J, Pippan R. Can pure mode III fatigue loading contribute to crack propagation in metallic materials? Fatigue Fract Engng Mater Struct 2005;28:179–85. [8] Papadopoulos IV, Davoli P, Gorla C, Filippini M, Bernasconi A. A comparative study of multiaxial high-cycle fatigue criteria for metals. Int J Fatigue 1997;19(3):219–35. [9] Carpinteri A, Spagnoli A. Multiaxial high-cycle fatigue criterion for hard metals. Int J Fatigue 2001;23(2):135–45. [10] Scherer S, Kolednik O. A new system for automatic surface analysis in SEM. Europ Microsc Anal 2001(March):15–7. [11] Dong WP, Sullivan PJ, Stout KJ. Comprehensive study of parameters for characterising three-dimensional surface topography III: parameters for characterising amplitude and some functional properties. Wear 1994;178:29–43. [12] Gadelmawla ES, Koura MM, Maksoud TMA, Elewa IM, Soliman HH. Roughnes parameters. J Mater Proc Tech 2002;123:133–45. [13] Balankin AS. Physics of fracture and mechanics of self-affine cracks. Engng Fract Mech 1997;57(2–3):135–203. [14] Slámečka, K. Quantitative fractography of biaxial fatigue fracture surfaces. VUT FSI Brno, PhD thesis, 2006 [in Czech]. [15] Slámečka K, Ponížil P, Pokluda J. Quantitative fractography in bending–torsion fatigue. Mater Sci Engng A, in press.
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.
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