{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,22]],"date-time":"2025-05-22T04:47:15Z","timestamp":1747889235377,"version":"3.41.0"},"reference-count":22,"publisher":"Trans Tech Publications, Ltd.","license":[{"start":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T00:00:00Z","timestamp":1658448000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T00:00:00Z","timestamp":1658448000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.scientific.net\/license\/TDM_Licenser.pdf"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["KEM"],"abstract":"<jats:p>Marciniak and Nakajima tests are commonly used in building FLD's, since they allow covering all regions from uniaxial to almost equibiaxial strain paths. In this work, the deviation from equibiaxial strain paths is analyzed as function of the material anisotropic behavior. The numerical results show that material with present equibiaxial stress and strain paths, while for the ones with the paths are neither equibiaxial in stress nor strain. Moreover, it is shown that despite the similarities between the two tests, they present different sensitivity to the control of the blank holder force and to the friction coefficient. Namely, the stress and strain paths in the Marciniak specimen center are more sensitive to the control of the blank holder force. On the other hand, the stress and strain paths in the Nakajima specimen center are more sensitive to the friction coefficient. The deviation from the equibiaxial strain path indicates that the stress ratio is also not necessarily 1.0, meaning that the stress triaxiality and the Lode parameter also present some deviation from the reference values for an equibiaxial stress state. This should be taken into account when analyzing forming limit results.<\/jats:p>","DOI":"10.4028\/p-u7u5i8","type":"journal-article","created":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T11:34:13Z","timestamp":1658489653000},"page":"1007-1020","source":"Crossref","is-referenced-by-count":0,"title":["Influence of the Anisotropic Behavior on Equibiaxial Paths"],"prefix":"10.4028","volume":"926","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8570-5450","authenticated-orcid":false,"given":"Felipe F.","family":"Salles","sequence":"first","affiliation":[{"name":"Universidade de Coimbra"}]},{"given":"Marta C.","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Universidade de Coimbra"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2296-4009","authenticated-orcid":false,"given":"Diogo M.","family":"Neto","sequence":"additional","affiliation":[{"name":"Universidade de Coimbra"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8714-4880","authenticated-orcid":false,"given":"Jos\u00e9 Luis","family":"Alves","sequence":"additional","affiliation":[{"name":"Universidade do Minho"}]},{"given":"Luis Filipe","family":"Menezes","sequence":"additional","affiliation":[{"name":"Universidade de Coimbra"}]},{"given":"Jos\u00e9 Valdemar","family":"Fernandes","sequence":"additional","affiliation":[{"name":"Universidade de Coimbra"}]}],"member":"2457","published-online":{"date-parts":[[2022,7,22]]},"reference":[{"issue":"7","key":"4618533","doi-asserted-by":"publisher","first-page":"393","DOI":"10.1016\/0020-7403(82)90050-9","article-title":"Finite element correction matrices in metal forming analysis (with application to hydrostatic bulging of a circular sheet)","volume":"24","author":"Wifi","unstructured":"A.S. 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