{"id":3180,"date":"2022-11-01T17:48:28","date_gmt":"2022-11-01T17:48:28","guid":{"rendered":"https:\/\/www.compassis.com\/?p=3180"},"modified":"2023-06-21T10:09:50","modified_gmt":"2023-06-21T10:09:50","slug":"tdyn-ramseries-non-linear-analysis-cables-membranes","status":"publish","type":"post","link":"https:\/\/www.compassis.com\/en\/news\/tdyn-ramseries-non-linear-analysis-cables-membranes\/","title":{"rendered":"Non-Linear Static Analyses in Tdyn RamSeries"},"content":{"rendered":"\n<p>In <strong><a href=\"https:\/\/www.compassis.com\/en\/software\/structural-analysis-tdyn-ramseries\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tdyn RamSeries<\/a><\/strong>, static non-linear analysis also allows the study of structures that have membranes and cables. For those scenarios, it is not mandatory for the analysis to be a dynamic one. An <strong>Incremental load analysis<\/strong> can be defined if the applied loads are static.<\/p>\n\n\n\n<p>In these cases (membranes, cables or even very thin sheets), the stiffness matrix may be ill-conditioned or singular. In general, for dynamic analyses, this ill-conditioning should not pose any convergence issue, as the damping compensates for the stiffness matrix singularity. However, for incremental nonlinear cases, convergence problems may appear due to a lack of damping. To overcome this inconvenience, Tdyn-RamSeries has implemented a method that adds a numerical stabilisation (that is, an artificial damping).<\/p>\n\n\n\n<p>This artificial damping is given by the diagonal matrix <em>SFM <\/em>(Stability Factor Matrix), using a <strong>Stabilisation Factor<\/strong>. Once the number of increments defined by the user are finished, Tdyn RamSeries performs an extra amount of increments (<strong>Stabilisation Increment Number<\/strong>) to guarantee analysis stabilisation and the required convergence.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Tdyn RamSeries, static non-linear analysis also allows the study of structures that have membranes and cables. For those scenarios, it is not mandatory for&hellip; <a class=\"more-link\" href=\"https:\/\/www.compassis.com\/en\/news\/tdyn-ramseries-non-linear-analysis-cables-membranes\/\">Continue reading <span class=\"screen-reader-text\">Non-Linear Static Analyses in Tdyn RamSeries<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":3181,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[96,97,93,52,98,94],"class_list":["post-3180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-cable-2","tag-membrane","tag-non-linear","tag-ramseries-en","tag-stabilisation-factor","tag-static","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Non-Linear Static Analyses in Tdyn RamSeries<\/title>\n<meta name=\"description\" content=\"In Tdyn 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