{"id":14184,"date":"2023-11-10T08:27:34","date_gmt":"2023-11-10T00:27:34","guid":{"rendered":"http:\/\/www.jdcui.com\/?p=14184"},"modified":"2026-02-16T22:20:05","modified_gmt":"2026-02-16T14:20:05","slug":"opensees%e7%a7%91%e7%a0%94-pinching4-mattest-pinching4-material-test-and-paramete-correction-pinching4%e6%9d%90%e6%96%99%e5%8f%82%e6%95%b0%e6%b5%8b%e8%af%95%e5%8f%8a%e7%9f%ab%e6%ad%a3%e6%8b%9f","status":"publish","type":"post","link":"http:\/\/www.jdcui.com\/?p=14184","title":{"rendered":"[\u7a0b\u5e8f] Pinching4MatTest: OpenSees Pinching4 Material Parameter Test [OpenSees  Pinching4\u6750\u6599\u53c2\u6570\u6d4b\u8bd5\u5de5\u5177]"},"content":{"rendered":"<p><script id=\"MathJax-script\" src=\"http:\/\/www.jdcui.com\/wp-content\/MathJax_3_1_2\/MathJax-master\/es5\/tex-mml-chtml.js\" async=\"\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/script><\/p>\n<p><span style=\"color: #ff00ff; background-color: #ccffcc;\"><strong>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002<\/strong><\/span><\/p>\n<hr \/>\n<ul style=\"list-style-type: square;\">\n<li><strong>\u7a0b\u5e8f\u56fe\u6807\u00a0<span style=\"color: #0000ff;\">( Icon )<\/span><\/strong><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-22226\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4.png\" alt=\"\" width=\"197\" height=\"198\" \/><\/p>\n<ul style=\"list-style-type: square;\">\n<li><strong>\u7a0b\u5e8f\u4ecb\u7ecd\u00a0<span style=\"color: #0000ff;\">( Introduction)<\/span><\/strong><\/li>\n<\/ul>\n<p>\u5e94\u7f51\u53cb\u8981\u6c42\uff0c\u7f16\u5236\u8fd9\u4e2a <strong>Pinching4 MatTest<\/strong> \u7a0b\u5e8f\uff0c\u7528\u4e8e\u6d4b\u8bd5 OpenSees\u4e2d\u7684Pinching4 \u6750\u6599\u7684\u7279\u6027\u3002<\/p>\n<p><strong>OpenSees<\/strong>\u4e2d\u7684<strong>Pinching4 Material<\/strong> \u662f\u4e00\u4e2a\u7075\u6d3b\u5ea6\u975e\u5e38\u9ad8\u7684\u5355\u8f74\u6ede\u56de\u672c\u6784\u6a21\u578b\uff0c\u8be5\u6750\u6599\u62df\u5408\u201c\u6324\u538b\u201d\u8f7d\u8377\u53d8\u5f62\u54cd\u5e94\uff0c\u5e76\u5728\u5faa\u73af\u8f7d\u8377\u4e0b\u8868\u73b0\u51fa\u9000\u5316\u3002\u5f3a\u5ea6\u548c\u521a\u5ea6\u7684\u5faa\u73af\u9000\u5316\u6709\u4e09\u79cd\u65b9\u5f0f\uff1a\u5378\u8f7d\u521a\u5ea6\u9000\u5316\u3001\u91cd\u65b0\u52a0\u8f7d\u521a\u5ea6\u9000\u5316\u548c\u5f3a\u5ea6\u9000\u5316\u3002\u6b64\u5916\uff0c\u8be5\u672c\u6784\u5141\u8bb8\u62df\u5408\u6750\u6599\u7684\u6b63\u8d1f\u975e\u5bf9\u79f0\u7279\u6027\u3002\u8be5\u672c\u6784\u7684\u8be6\u7ec6\u4ecb\u7ecd\u53ef\u67e5\u770b\u8fd9\u4e2a\u5b98\u65b9\u94fe\u63a5\uff1a<strong><a href=\"https:\/\/opensees.berkeley.edu\/wiki\/index.php\/Pinching4_Material\">https:\/\/opensees.berkeley.edu\/wiki\/index.php\/Pinching4_Material<\/a><\/strong><\/p>\n<p>\u6211\u4eec\u628a\u5b98\u7f51\u8be5\u6750\u6599\u7684\u547d\u4ee4\u8d34\u5230\u4e0b\u9762\uff1a<\/p>\n<p>This command is used to construct a uniaxial material that represents a &#8216;pinched&#8217; load-deformation response and exhibits degradation under cyclic loading. Cyclic degradation of strength and stiffness occurs in three ways: unloading stiffness degradation, reloading stiffness degradation, strength degradation.<\/p>\n<table style=\"width: 100%; height: 37px;\">\n<tbody>\n<tr style=\"height: 37px;\">\n<td style=\"height: 37px;\"><span style=\"background-color: #ffff99;\"><b>uniaxialMaterial Pinching4 $matTag $ePf1 $ePd1 $ePf2 $ePd2 $ePf3 $ePd3 $ePf4 $ePd4 &lt;$eNf1 $eNd1 $eNf2 $eNd2 $eNf3 $eNd3 $eNf4 $eNd4&gt; $rDispP $rForceP $uForceP &lt;$rDispN $rForceN $uForceN &gt; $gK1 $gK2 $gK3 $gK4 $gKLim $gD1 $gD2 $gD3 $gD4 $gDLim $gF1 $gF2 $gF3 $gF4 $gFLim $gE $dmgType<\/b><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<table>\n<tbody>\n<tr>\n<td><b>$matTag<\/b><\/td>\n<td>integer tag identifying material<\/td>\n<\/tr>\n<tr>\n<td><b>$ePf1 $ePf2 $ePf3 $ePf4<\/b><\/td>\n<td>floating point values defining force points on the positive response envelope<\/td>\n<\/tr>\n<tr>\n<td><b>$ePd1 $ePd2 $ePd3 $ePd4<\/b><\/td>\n<td>floating point values defining deformation points on the positive response envelope<\/td>\n<\/tr>\n<tr>\n<td><b>$eNf1 $eNf2 $eNf3 $eNf4<\/b><\/td>\n<td>floating point values defining force points on the negative response envelope<\/td>\n<\/tr>\n<tr>\n<td><b>$eNd1 $eNd2 $eNd3 $eNd4<\/b><\/td>\n<td>floating point values defining deformation points on the negative response envelope<\/td>\n<\/tr>\n<tr>\n<td><b>$rDispP<\/b><\/td>\n<td>floating point value defining the ratio of the deformation at which reloading occurs to the maximum historic deformation demand<\/td>\n<\/tr>\n<tr>\n<td><b>$fFoceP<\/b><\/td>\n<td>floating point value defining the ratio of the force at which reloading begins to force corresponding to the maximum historic deformation demand<\/td>\n<\/tr>\n<tr>\n<td><b>$uForceP<\/b><\/td>\n<td>floating point value defining the ratio of strength developed upon unloading from negative load to the maximum strength developed under monotonic loading<\/td>\n<\/tr>\n<tr>\n<td><b>$rDispN<\/b><\/td>\n<td>floating point value defining the ratio of the deformation at which reloading occurs to the minimum historic deformation demand<\/td>\n<\/tr>\n<tr>\n<td><b>$fFoceN<\/b><\/td>\n<td>floating point value defining the ratio of the force at which reloading begins to force corresponding to the minimum historic deformation demand<\/td>\n<\/tr>\n<tr>\n<td><b>$uForceN<\/b><\/td>\n<td>floating point value defining the ratio of strength developed upon unloading from negative load to the minimum strength developed under monotonic loading<\/td>\n<\/tr>\n<tr>\n<td><b>$gK1 $gK2 $gK3 $gK4 $gKLim<\/b><\/td>\n<td>floating point values controlling cyclic degradation model for unloading stiffness degradation<\/td>\n<\/tr>\n<tr>\n<td><b>$gD1 $gD2 $gD3 $gD4 $gDLim<\/b><\/td>\n<td>floating point values controlling cyclic degradation model for reloading stiffness degradation<\/td>\n<\/tr>\n<tr>\n<td><b>$gF1 $gF2 $gF3 $gF4 $gFLim<\/b><\/td>\n<td>floating point values controlling cyclic degradation model for strength degradation<\/td>\n<\/tr>\n<tr>\n<td><b>$gE<\/b><\/td>\n<td>floating point value used to define maximum energy dissipation under cyclic loading. Total energy dissipation capacity is defined as this factor multiplied by the energy dissipated under monotonic loading.<\/td>\n<\/tr>\n<tr>\n<td><b>$dmgType<\/b><\/td>\n<td>string to indicate type of damage (option: &#8220;cycle&#8221;, &#8220;energy&#8221;)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-22228\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Piinching4.jpg\" alt=\"\" width=\"625\" height=\"371\" \/><\/p>\n<ul style=\"list-style-type: square;\">\n<li><strong>\u7a0b\u5e8f\u622a\u5c4f\u00a0<span style=\"color: #0000ff;\">( screenshot<\/span><\/strong><span style=\"color: #0000ff;\">)<\/span><\/li>\n<\/ul>\n<p>\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u8be5\u8f6f\u4ef6\uff0c\u590d\u523b\u8fde\u63a5 <strong><a href=\"https:\/\/opensees.berkeley.edu\/wiki\/index.php\/Pinching4MaterialExample\">https:\/\/opensees.berkeley.edu\/wiki\/index.php\/Pinching4MaterialExample<\/a> <\/strong>\u91cc\u9762\u7684\u6750\u6599\u6d4b\u8bd5\u6848\u4f8b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-22231\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_1-min.png\" alt=\"\" width=\"993\" height=\"749\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_1-min.png 993w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_1-min-768x579.png 768w\" sizes=\"auto, (max-width: 993px) 100vw, 993px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-22232\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_2-min.png\" alt=\"\" width=\"993\" height=\"749\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_2-min.png 993w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_2-min-768x579.png 768w\" sizes=\"auto, (max-width: 993px) 100vw, 993px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-22233\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_3-min.png\" alt=\"\" width=\"993\" height=\"749\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_3-min.png 993w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_3-min-768x579.png 768w\" sizes=\"auto, (max-width: 993px) 100vw, 993px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-22239\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_3_1-min.png\" alt=\"\" width=\"995\" height=\"757\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_3_1-min.png 1038w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_3_1-min-768x585.png 768w\" sizes=\"auto, (max-width: 995px) 100vw, 995px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-22236\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_5-min.png\" alt=\"\" width=\"998\" height=\"901\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_5-min.png 823w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_5-min-768x693.png 768w\" sizes=\"auto, (max-width: 998px) 100vw, 998px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-22241\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_4_1-min.png\" alt=\"\" width=\"983\" height=\"638\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_4_1-min.png 983w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2023\/11\/Pinching4Material_4_1-min-768x498.png 768w\" sizes=\"auto, (max-width: 983px) 100vw, 983px\" \/><\/p>\n<p><strong>Video \u89c6\u9891\u6f14\u793a<\/strong><\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/player.bilibili.com\/player.html?isOutside=true&amp;aid=620844097&amp;bvid=BV1ub4y1g7Xs&amp;cid=1328775980&amp;p=1\" width=\"800\" height=\"600\" frameborder=\"no\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<ul style=\"list-style-type: square;\">\n<li><strong>\u5982\u4f55\u83b7\u5f97\u8f6f\u4ef6 <span style=\"color: #0000ff;\">(\u00a0 How to get this program )<\/span><\/strong><\/li>\n<\/ul>\n<p><span style=\"color: #ff0000;\"><strong>(\u00a0 <span style=\"color: #ff00ff;\">\u5982\u679c\u60a8\u9700\u8981\u4f7f\u7528\u8fd9\u4e2a\u8f6f\u4ef6\uff0c\u8bf7\u5728\u8fd9\u7ed9\u7f51\u7ad9\u6350\u52a9\uff1a<span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"http:\/\/www.jdcui.com\/?page_id=4813\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.jdcui.com\/?page_id=4813<\/a><\/span>\uff0c\u6350\u52a9\u4e0d\u5c11\u4e8e\u3010250RMB\u3011\uff0c\u6350\u52a9\u540e\u5728\u8bc4\u8bba\u533a\u7559\u4e0b\u60a8\u7684\u8bc4\u8bba\uff0c\u8f6f\u4ef6\u5c06\u901a\u8fc7\u7f51\u7ad9\u5ba2\u670d\u53f7QQ\uff083014479529\uff09\u7ed9\u60a8\u53d1\u9001\uff0c<em>\u656c\u8bf7\u5c0a\u91cd\u52b3\u52a8\u6210\u679c<\/em> \uff01\uff01\u6350\u52a9\u8005\u53ef\u4ee5\u901a\u8fc7\u5ba2\u670d\u53f7\u8fdb\u884c\u76f8\u5173\u7814\u7a76\u95ee\u9898\u53ca\u8f6f\u4ef6\u4f7f\u7528\u95ee\u9898\u8ba8\u8bba\u3002<\/span>)<\/strong><\/span><\/p>\n<hr \/>\n<p style=\"text-align: center;\"><strong><div  class=\"thumbs-rating-container\" id=\"thumbs-rating-14184\" data-content-id=\"14184\"><button class=\"thumbs-rating-up thumbs-rating-voted\" onclick=\"thumbs_rating_vote(14184, 1);\">Vote Up +11<\/button> <button class=\"thumbs-rating-down thumbs-rating-voted\" onclick=\"thumbs_rating_vote(14184, 2);\">Vote Down -4<\/button><span class=\"thumbs-rating-already-voted\">You already voted!<\/span><\/div><\/strong><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"text-align: left;\"><strong>\u76f8\u5173\u535a\u6587<span style=\"color: #0000ff;\">( Related Topics)<\/span><\/strong><\/li>\n<\/ul>\n<p style=\"text-align: left;\"><strong>[01]\u00a0<a title=\"[\u79d1\u7814][\u8f6f\u4ef6][OpenSees] OSBWTest: OpenSees BoucWen Material Test ( OpenSees BoucWen\u6750\u6599\u6d4b\u8bd5)\" href=\"http:\/\/www.jdcui.com\/?p=12655\" target=\"_blank\" rel=\"noopener\">[\u79d1\u7814][\u8f6f\u4ef6][OpenSees] OSBWTest: OpenSees BoucWen Material Test ( OpenSees BoucWen\u6750\u6599\u6d4b\u8bd5)<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[02] <a title=\"[\u7814\u7a76][\u8f6f\u4ef6] BWTest: Bouc-Wen\u6a21\u578b\u53c2\u6570\u6d4b\u8bd5\u5206\u6790 [Bouc-Wen Hysteretic Model Parameters Analysis]\" href=\"http:\/\/www.jdcui.com\/?p=18357\" target=\"_blank\" rel=\"noopener\">[\u7814\u7a76][\u8f6f\u4ef6] BWTest: Bouc-Wen\u6a21\u578b\u53c2\u6570\u6d4b\u8bd5\u5206\u6790 [Bouc-Wen Hysteretic Model Parameters Analysis]<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[03] <a title=\"[\u7b14\u8bb0][\u975e\u7ebf\u6027][OpenSees] \u591a\u4e2a\u5355\u8f74\u4e8c\u6298\u7ebf\u975e\u7ebf\u6027\u672c\u6784\u5e76\u8054\u540e\u7684\u6ede\u56de\u66f2\u7ebf\u662f\u4ec0\u4e48\u6837\u5b50\u7684\uff1f\" href=\"http:\/\/www.jdcui.com\/?p=16360\" target=\"_blank\" rel=\"noopener\">[\u7b14\u8bb0][\u975e\u7ebf\u6027][OpenSees] \u591a\u4e2a\u5355\u8f74\u4e8c\u6298\u7ebf\u975e\u7ebf\u6027\u672c\u6784\u5e76\u8054\u540e\u7684\u6ede\u56de\u66f2\u7ebf\u662f\u4ec0\u4e48\u6837\u5b50\u7684\uff1f<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[04] <a title=\"[\u7a0b\u5e8f][\u79d1\u7814][\u672c\u6784] BMMF: Bilinear Material Model Fitting Tool [BMMF:\u4e8c\u6298\u7ebf\u8bd5\u9a8c\u6ede\u56de\u66f2\u7ebf\u672c\u6784\u62df\u5408\u5de5\u5177]\" href=\"http:\/\/www.jdcui.com\/?p=12043\" target=\"_blank\" 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<a class=\"row-title\" href=\"http:\/\/www.jdcui.com\/?p=2688\">OpenSees Concrete04 Material Test<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[09] <a class=\"row-title\" href=\"http:\/\/www.jdcui.com\/?p=2573\">OpenSees Concrete02 Material Test<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[10] <a class=\"row-title\" href=\"http:\/\/www.jdcui.com\/?p=2673\">OpenSees Concrete01 Material Test<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[11] <a class=\"row-title\" href=\"http:\/\/www.jdcui.com\/?p=2668\">OpenSees RambergOsgoodSteel Material Test<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[12] <a class=\"row-title\" href=\"http:\/\/www.jdcui.com\/?p=2567\" target=\"_blank\" rel=\"noopener\">OpenSees Steel02 Material Test<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[13] <a class=\"row-title\" href=\"http:\/\/www.jdcui.com\/?p=2603\" target=\"_blank\" rel=\"noopener\">OpenSees Steel01 Material Test<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[14] <a class=\"row-title\" title=\"[OpenSees][\u79d1\u7814] Pinching4 MatTest: Pinching4 Material Test and Paramete Correction [Pinching4\u6750\u6599\u53c2\u6570\u6d4b\u8bd5\u53ca\u77eb\u6b63\u62df\u5408\u5de5\u5177]\" href=\"http:\/\/www.jdcui.com\/?p=14184\" target=\"_blank\" rel=\"noopener\">[OpenSees][\u79d1\u7814] Pinching4 MatTest: Pinching4 Material Test and Paramete Correction [Pinching4\u6750\u6599\u53c2\u6570\u6d4b\u8bd5\u53ca\u77eb\u6b63\u62df\u5408\u5de5\u5177]<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>[15] <a class=\"row-title\" title=\"[\u79d1\u7814][OpenSees] BWBN Material (Pinching Hysteretic Bouc-Wen Material) Test\" href=\"http:\/\/www.jdcui.com\/?p=12653\" target=\"_blank\" rel=\"noopener\">[\u79d1\u7814][OpenSees] BWBN Material (Pinching Hysteretic Bouc-Wen Material) Test<\/a><\/strong><\/p>\n<p><strong>[16]. <a title=\"[\u7b14\u8bb0][\u7f16\u7a0b][\u7b97\u6cd5] \u56db\u6bb5\u5f0f\u5355\u8f74\u6062\u590d\u529b\u672c\u6784\u6a21\u578b\u5f00\u53d1 (Development of four segment uniaxial restoring force constitutive model)\" href=\"http:\/\/www.jdcui.com\/?p=18570\" target=\"_blank\" rel=\"noopener\">[\u7b14\u8bb0][\u7f16\u7a0b][\u7b97\u6cd5] \u56db\u6bb5\u5f0f\u5355\u8f74\u6062\u590d\u529b\u672c\u6784\u6a21\u578b\u5f00\u53d1 (Development of four segment uniaxial restoring force constitutive model)<\/a><\/strong><\/p>\n<p><strong>[17]. <a title=\"[\u6df7\u51dd\u571f] \u672c\u7ad9\u6df7\u51dd\u571f\u5355\u8f74\u672c\u6784\u535a\u6587\u6c47\u603b\u6574\u7406\" href=\"http:\/\/www.jdcui.com\/?p=11902\" target=\"_blank\" rel=\"noopener\">[\u6df7\u51dd\u571f] \u672c\u7ad9\u6df7\u51dd\u571f\u5355\u8f74\u672c\u6784\u535a\u6587\u6c47\u603b\u6574\u7406<\/a><\/strong><\/p>\n<p><strong>[18]. <a title=\"[\u4e66]PERFORM-3D\u539f\u7406\u4e0e\u5b9e\u4f8b \u2013 \u7b2c3\u7ae0 \u2013 \u94a2\u7b4b\u4e0e\u6df7\u51dd\u571f\u6750\u6599\u7684\u5355\u8f74\u672c\u6784\u5173\u7cfb\" href=\"http:\/\/www.jdcui.com\/?p=4165\" target=\"_blank\" rel=\"noopener\">\u4e66]PERFORM-3D\u539f\u7406\u4e0e\u5b9e\u4f8b \u2013 \u7b2c3\u7ae0 \u2013 \u94a2\u7b4b\u4e0e\u6df7\u51dd\u571f\u6750\u6599\u7684\u5355\u8f74\u672c\u6784\u5173\u7cfb<\/a><\/strong><\/p>\n<p><strong>[19]. <a title=\"[\u79d1\u7814][OpenSees] BWBN Material (Pinching Hysteretic Bouc-Wen Material) Test\" href=\"http:\/\/www.jdcui.com\/?p=12653\" target=\"_blank\" rel=\"noopener\">[\u79d1\u7814][OpenSees] BWBN Material (Pinching Hysteretic Bouc-Wen Material) Test<\/a><\/strong><\/p>\n<p><strong>[20]. <a title=\"[\u79d1\u7814][\u8f6f\u4ef6][OpenSees] OSSelfCenteringTest: OpenSees SelfCentering Material Test [OpenSees SelfCentering \u65d7\u5e1c\u578b\u6ede\u56de\u6a21\u578b\u6d4b\u8bd5]\" href=\"http:\/\/www.jdcui.com\/?p=21488\" target=\"_blank\" rel=\"noopener\">[\u79d1\u7814][\u8f6f\u4ef6][OpenSees] OSSelfCenteringTest: OpenSees SelfCentering Material Test [OpenSees SelfCentering \u65d7\u5e1c\u578b\u6ede\u56de\u6a21\u578b\u6d4b\u8bd5]<\/a><\/strong><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"text-align: left;\"><strong>\u5fae\u4fe1\u516c\u4f17\u53f7\u00a0(<span style=\"color: #000080;\">\u00a0<span style=\"color: #0000ff;\">Wechat\u00a0Subscription<\/span><\/span>)<\/strong><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3636\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\" alt=\"WeChat_QRCode\" width=\"250\" height=\"255\" \/><strong><span style=\"color: #333333;\">\u6b22\u8fce\u5173\u6ce8\u00a0<span style=\"color: #ff00ff;\">\u201c\u7ed3\u6784\u4e4b\u65c5\u201d\u00a0<\/span>\u5fae\u4fe1\u516c\u4f17\u53f7<\/span><\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002 \u7a0b\u5e8f\u56fe\u6807\u00a0( Icon ) \u7a0b\u5e8f\u4ecb\u7ecd\u00a0( Introduction) \u5e94\u7f51\u53cb\u8981\u6c42\uff0c\u7f16\u5236\u8fd9\u4e2a Pinching4 MatTest \u7a0b\u5e8f\uff0c\u7528\u4e8e\u6d4b\u8bd5 OpenSees\u4e2d\u7684Pinching4 \u6750\u6599\u7684\u7279\u6027\u3002 OpenSees\u4e2d\u7684Pinching4 Material \u662f\u4e00\u4e2a\u7075\u6d3b\u5ea6\u975e\u5e38\u9ad8\u7684\u5355\u8f74\u6ede\u56de\u672c\u6784\u6a21\u578b\uff0c\u8be5\u6750\u6599\u62df\u5408\u201c\u6324\u538b\u201d\u8f7d\u8377\u53d8\u5f62\u54cd\u5e94\uff0c\u5e76\u5728\u5faa\u73af\u8f7d\u8377\u4e0b\u8868\u73b0\u51fa\u9000\u5316\u3002\u5f3a\u5ea6\u548c\u521a\u5ea6\u7684\u5faa\u73af\u9000\u5316\u6709\u4e09\u79cd\u65b9\u5f0f\uff1a\u5378\u8f7d\u521a\u5ea6\u9000\u5316\u3001\u91cd\u65b0\u52a0\u8f7d\u521a\u5ea6\u9000\u5316\u548c\u5f3a\u5ea6\u9000\u5316\u3002\u6b64\u5916\uff0c\u8be5\u672c\u6784\u5141\u8bb8\u62df\u5408\u6750\u6599\u7684\u6b63\u8d1f\u975e\u5bf9\u79f0\u7279\u6027\u3002\u8be5\u672c\u6784\u7684\u8be6\u7ec6\u4ecb\u7ecd\u53ef\u67e5\u770b\u8fd9\u4e2a\u5b98\u65b9\u94fe\u63a5\uff1ahttps:\/\/opensees.berkeley.edu\/wiki\/index.php\/Pinching4_Material \u6211\u4eec\u628a\u5b98\u7f51\u8be5\u6750\u6599\u7684\u547d\u4ee4\u8d34\u5230\u4e0b\u9762\uff1a This command is used to construct a uniaxial material that represents a &#8216;pinched&#8217; load-deformation &#8230;<\/p>\n","protected":false},"author":1,"featured_media":22238,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,3,1087,5],"tags":[2325,2326,4008,4009,4014,4013,4010,4012,4011,481],"class_list":["post-14184","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-my-software-","category-opensees","category-structural-analysis-","category-structural-engineering","tag-opensess","tag-pinching4","tag-pinching4-material","tag-stiffness-degradation","tag-strength-degradation","tag-4013","tag-4010","tag-4012","tag-4011","tag-481"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"CJD\"\/>\n\t<meta name=\"keywords\" content=\"opensess,pinching4,pinching4 material,stiffness degradation,strength 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