{"_buckets": {"deposit": "146b7dc1-6fd2-4296-a605-30daa010c5bb"}, "_deposit": {"id": "2000915", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2000915"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02000915", "sets": ["1642838338003", "1642838406845"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "\u591a\u5b54\u8cea\u6750\u306e\u30d6\u30ea\u30cd\u30eb\u786c\u3055\u8a66\u9a13\u306b\u95a2\u3059\u308b\u7814\u7a76", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "A Study of Brinell Hardness Test of Porous Materials", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u5449\u5c4b, \u5b88\u7ae0", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u6bd4\u5609, \u5409\u4e00", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u5bae\u57ce, \u6e05\u5b8f", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u672b\u5409, \u654f\u606d", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u9d07\u7530, \u653f\u96c4", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Goya, Moriaki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Higa, Yoshikazu", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Miyagi, Kiyohiro", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Sueyoshi, Toshiyasu", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tokita, Masao", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186499011": {"attribute_name": "Rights", "attribute_value_mlt": [{"subitem_1522650717957": "ja", "subitem_1522651041219": "Copyright (c)  1998 \u65e5\u672c\u6a5f\u68b0\u5b66\u4f1a"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Porous Material"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Spark Plasma Sintering"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Constitutive Equation"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Brinell Hardness Test"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "The Finite Element Method is applied to the analysis of Brinell hardness test of porous materials. The numerical calculation is performed using four different plastic constitutive rules such as Gurson\u0027s rule, Tvergaard\u0027s modification of Gurson\u0027s rule, Goya-Nagaki-Sowerby\u0027s rule and a stereology-based rule that is a modification of Goya-Nagaki-Sowerby\u0027s rule. For the investigation of the validity of the rules, the numerical results are compared with experimental data for the porous materials produced by Spark Plasma Sintering method which can product porous materials of higher porosity. From the comparison it is concluded that the numerical results obtained using Tvergaard\u0027s modification of Gurson\u0027s rule or the stereology-based modification can well predict the experimental results. However, the numerical results deviate from the experimental data for the porous material of higher porosity such as fo=0.3. This deviation is attributed to the fact that the shape of pores in the porous material of fo=0.3 are quite different from the sphere that is a fundamental assumption in developing constitutive rules.", "subitem_description_type": "Other"}, {"subitem_description": "\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u65e5\u672c\u6a5f\u68b0\u5b66\u4f1a"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/256"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "03875008"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN0018742X"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u65e5\u672c\u6a5f\u68b0\u5b66\u4f1a\u8ad6\u6587\u96c6. A\u7de8"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "Transactions of the Japan Society of Mechanical Engineers. 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