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dc.contributor.author김효정en_US
dc.date.accessioned2014-12-01T11:46:45Z-
dc.date.available2014-12-01T11:46:45Z-
dc.date.issued2010en_US
dc.identifier.otherOAK-2014-00316en_US
dc.identifier.urihttp://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000000786684en_US
dc.identifier.urihttp://oasis.postech.ac.kr/handle/2014.oak/818-
dc.descriptionMasteren_US
dc.description.abstractSheet metal forming commonly involves various processing steps leading to complex strain paths and large strains. A good description of the mechanical behavior of materials under complex loading condition helps to predict accurately the real forming process. The simple shear test is particularly suitable for sheet materials because strain-path changes can be simply conducted by reversing the tool displacement direction. In this work, forward and reverse simple shear tests are performed for the analysis of the hardening behavior of IF and DP steel sheets. The results indicate that both materials exhibit Bauschinger effects and strain hardening transients during reverse loading in all conditions investigated. The amplitudes of these effects increase with higher amounts of prestrain. DP steel, which contains martensite as second phase particles, shows a more pronounced Bauschinger effect, delayed occurrence of the transient stagnation region and permanent softening.en_US
dc.languageengen_US
dc.publisher포항공과대학교en_US
dc.rightsBY_NC_NDen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.0/kren_US
dc.titleBauschinger effect in simple shear for DQIF and DP steel sheetsen_US
dc.typeThesisen_US
dc.contributor.college철강대학원 철강학과en_US
dc.date.degree2010- 8en_US
dc.contributor.departmentGIFT, POSTECHen_US

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