Prevention of Internal Cracks in Forward Extrusion by Means of Counter Pressure: a Numerical Treatise

dc.authorid Tekkaya, Erman/0000-0002-5197-2948
dc.authorid Soyarslan, Celal/0000-0003-1029-237X
dc.authorscopusid 24464564000
dc.authorscopusid 7003877035
dc.authorwosid Tekkaya, Erman/HLW-4882-2023
dc.authorwosid Soyarslan, Celal/O-5139-2014
dc.contributor.author Soyarslan, C.
dc.contributor.author Tekkaya, A. E.
dc.contributor.other Manufacturing Engineering
dc.contributor.other Department of Mechatronics Engineering
dc.date.accessioned 2024-07-05T15:11:47Z
dc.date.available 2024-07-05T15:11:47Z
dc.date.issued 2009
dc.department Atılım University en_US
dc.department-temp [Soyarslan, C.; Tekkaya, A. E.] Atilim Univ, Dept Mfg Engn, TR-06836 Ankara, Turkey; [Soyarslan, C.] Middle E Tech Univ, Dept Civil Engn, TR-06531 Ankara, Turkey; [Tekkaya, A. E.] Univ Dortmund, Inst Forming Technol & Lightweight Construct, D-44227 Dortmund, Germany en_US
dc.description Tekkaya, Erman/0000-0002-5197-2948; Soyarslan, Celal/0000-0003-1029-237X en_US
dc.description.abstract In the context of forward bulk extrusion, where product defects are frequently observed, the effect of counter pressure on damage accumulation materializing a Continuum Damage Mechanics (CDM) approach is presented. A Lemaitre variant damage model accounting for unilateral damage evolution coupled with a multiplicative finite plasticity is utilized for this purpose. After a presentation of the crack governing mechanism, it is demonstrated that application of counter pressure introduces a marked decrease in the central damage accumulation, which in turn increases the formability of the material through keeping the tensile triaxiality in tolerable limits. It is also shown that, for a crack involving process, through systematic increase of the counter pressure, the crack sizes diminish; and at a certain level of counter pressure chevron cracks can be completely avoided. en_US
dc.identifier.citationcount 15
dc.identifier.doi 10.2374/SRI08SP170
dc.identifier.endpage 679 en_US
dc.identifier.issn 1611-3683
dc.identifier.issue 9 en_US
dc.identifier.scopus 2-s2.0-70350416981
dc.identifier.scopusquality Q3
dc.identifier.startpage 671 en_US
dc.identifier.uri https://doi.org/10.2374/SRI08SP170
dc.identifier.uri https://hdl.handle.net/20.500.14411/1493
dc.identifier.volume 80 en_US
dc.identifier.wos WOS:000269856200011
dc.identifier.wosquality Q2
dc.institutionauthor Soyarslan, Celal
dc.institutionauthor Tekkaya, Ahmet Eeman
dc.language.iso en en_US
dc.publisher verlag Stahleisen Mbh en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.scopus.citedbyCount 19
dc.subject forward extrusion en_US
dc.subject counter pressure en_US
dc.subject chevron cracks en_US
dc.subject ductile damage en_US
dc.subject finite elements en_US
dc.title Prevention of Internal Cracks in Forward Extrusion by Means of Counter Pressure: a Numerical Treatise en_US
dc.type Article en_US
dc.wos.citedbyCount 16
dspace.entity.type Publication
relation.isAuthorOfPublication af08017a-f481-403c-8a1b-4389eb897ad9
relation.isAuthorOfPublication 56cd564d-885b-4583-9ab3-d365598e205d
relation.isAuthorOfPublication.latestForDiscovery af08017a-f481-403c-8a1b-4389eb897ad9
relation.isOrgUnitOfPublication 9804a563-7f37-4a61-92b1-e24b3f0d8418
relation.isOrgUnitOfPublication e2a6d0b1-378e-4532-82b1-d17cabc56744
relation.isOrgUnitOfPublication.latestForDiscovery 9804a563-7f37-4a61-92b1-e24b3f0d8418

Files

Collections