{"created":"2023-05-25T05:23:26.606828+00:00","id":908,"links":{},"metadata":{"_buckets":{"deposit":"d0b8ee18-fee2-4a9a-ae69-74cac5f3d0d5"},"_deposit":{"created_by":3,"id":"908","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"908"},"status":"published"},"_oai":{"id":"oai:yamagata.repo.nii.ac.jp:00000908","sets":["34:36:182"]},"author_link":["3896","3897"],"item_3_alternative_title_18":{"attribute_name":"その他の言語のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Multiaxial Plastic Behavior of A2024-T6 and-T8 Aluminum Alloys"}]},"item_3_alternative_title_19":{"attribute_name":"タイトル（ヨミ）","attribute_value_mlt":[{"subitem_alternative_title":"アルミニウム ゴウキン A2024 T6 オヨビ T8 ザイ ノ タジク ソセイ キョドウ"}]},"item_3_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-02-15","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"23","bibliographicPageStart":"11","bibliographicVolumeNumber":"30","bibliographic_titles":[{"bibliographic_title":"山形大学紀要. 工学 = Bulletin of Yamagata University. Engineering"}]}]},"item_3_description_42":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"論文(Article)","subitem_description_type":"Other"}]},"item_3_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"Abstract : When A2024BE aluminum alloy is artificially aged at 200℃ for 10 min (T6 temper), it has been proved that the shear strength is much lower than the tensile one and that this alloy exhibits severe axisymmetric anisotropy. The effects of prolonged aging time and cyclic torsional prestraining on the improvement of shear strength and the reduction of anisotropy were examined in this investigation. Multiaxial stress tests were carried out on thin-walled cylindrical specimens of the A2024-T6 alloy aged at 200℃ for 5.5 hr and the A2024-T8 alloy aged at 200℃ for 5.5 hr after cyclic prestraining. In the tension-torsin stress space, the equistrain surfaces of the A2024-T6 alloy lie in the domain limited by von Mises' and Tresca' s criteria when offset strains are taken below 0.1%. However, they lie within Tresca' s criterion when offset strains taken above 0.2%, and the A2024-T6 alloy reveals severe axisymmetric anisotropy. On the other hand, the equistrain surfaces of the A2024-T8 alloy almost coincide with Tresca' s criterion independently of the offset strain although it exhibits minor orthotropic anisotropy. These plastic deformation behavior can be expressed precisely by the constitutive equation derived from the anisotropic yield function, Voce' s hardening law and the associated flow rule.　Key words : A2024BE aluminum alloy, T6 temper, T8 temper, Torsional prestrain, Combined stress, Constitutive equation, Planar anisotropy","subitem_description_type":"Other"}]},"item_3_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"3897","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Takeda,  Takenobu"}]}]},"item_3_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"山形大学"}]},"item_3_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00242991","subitem_source_identifier_type":"NCID"}]},"item_3_text_33":{"attribute_name":"出版者（ヨミ）","attribute_value_mlt":[{"subitem_text_value":"ヤマガタ ダイガク"}]},"item_3_text_34":{"attribute_name":"別言語の出版者","attribute_value_mlt":[{"subitem_text_value":"Yamagata University"}]},"item_3_text_43":{"attribute_name":"資源タイプ・ローカル","attribute_value_mlt":[{"subitem_text_value":"紀要論文"}]},"item_3_text_44":{"attribute_name":"資源タイプ・NII","attribute_value_mlt":[{"subitem_text_value":"Departmental Bulletin Paper"}]},"item_3_text_45":{"attribute_name":"資源タイプ・DCMI","attribute_value_mlt":[{"subitem_text_value":"text"}]},"item_3_text_46":{"attribute_name":"資源タイプ・ローカル表示コード","attribute_value_mlt":[{"subitem_text_value":"2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"武田,  武信"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2015-08-21"}],"displaytype":"detail","filename":"kiyoue-30-011to023.pdf","filesize":[{"value":"894.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"kiyoue-30-011to023.pdf","url":"https://yamagata.repo.nii.ac.jp/record/908/files/kiyoue-30-011to023.pdf"},"version_id":"eba0d44c-ab3a-4774-9e71-118fb9e73e6b"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"アルミニウム合金A2024-T6およびT8材の多軸塑性挙動","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アルミニウム合金A2024-T6およびT8材の多軸塑性挙動"}]},"item_type_id":"3","owner":"3","path":["182"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-03-06"},"publish_date":"2008-03-06","publish_status":"0","recid":"908","relation_version_is_last":true,"title":["アルミニウム合金A2024-T6およびT8材の多軸塑性挙動"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-05-25T06:18:49.227392+00:00"}