{"id":3657,"date":"2021-01-10T21:37:44","date_gmt":"2021-01-10T18:37:44","guid":{"rendered":"https:\/\/www.ekvilibris.lt\/?p=3657"},"modified":"2021-01-10T21:37:45","modified_gmt":"2021-01-10T18:37:45","slug":"ek50","status":"publish","type":"post","link":"https:\/\/www.ekvilibris.lt\/?p=3657","title":{"rendered":"EK50"},"content":{"rendered":"\n<p>In a static or steady-state problem without substitution of a minimum number of prescribed <strong>displacements<\/strong> to prevent <strong>rigid body movements<\/strong> of the <strong>structure<\/strong>, it is impossible to solve this system, because the displacements can not be uniquely determined by the forces in such a situation. This physically obvious fact will be interpreted mathematically as the <strong>stiffness matrix<\/strong> being <strong>singular<\/strong>, i.e., not possessing an inverse.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In a static or steady-state problem without substitution of a minimum number of prescribed displacements to prevent rigid body movements of the structure, it is impossible to solve this system, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1250],"tags":[701,1315,743,703,1110],"_links":{"self":[{"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=\/wp\/v2\/posts\/3657"}],"collection":[{"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3657"}],"version-history":[{"count":1,"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=\/wp\/v2\/posts\/3657\/revisions"}],"predecessor-version":[{"id":3658,"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=\/wp\/v2\/posts\/3657\/revisions\/3658"}],"wp:attachment":[{"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ekvilibris.lt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}