{"id":162125,"date":"2023-01-25T07:34:24","date_gmt":"2023-01-25T07:34:24","guid":{"rendered":"\/knowledge\/forums\/topic\/how-to-use-uniaxial-tension-and-compression-data-for-rubber\/"},"modified":"2023-07-31T12:36:26","modified_gmt":"2023-07-31T12:36:26","slug":"how-to-use-uniaxial-tension-and-compression-data-for-rubber","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-use-uniaxial-tension-and-compression-data-for-rubber\/","title":{"rendered":"How to use uniaxial tension and compression data for rubber?"},"content":{"rendered":"<p>One can use test data directly with the Response Function Hyperelastic model. This does not require any curve-fitting and will use the data exactly. One would separate and enter the uniaxial tension and compression data directly. One also need to define the compressibility either by including pressure-volume test data or specifying the material compressibility parameter. Details of the Response Function Hyperelastic model can be found in the ANSYS Help sections below:  https:\/\/ansyshelp.ansys.com\/account\/secured?returnurl=\/Views\/Secured\/corp\/v190\/ans_mat\/aQw8sq22dldm.html%23respfunc_mat  Curve-fit to hyperelastic model:  If one wish to perform curve-fitting on predefined hyperelastic models,then include both compression and tension in the &#8220;uniaxial test data&#8221;. Be sure to just put the values in ascending order, and there should be a (0,0) data point.<\/p>\n","protected":false},"template":"","class_list":["post-162125","topic","type-topic","status-publish","hentry","topic-tag-4391","topic-tag-hyperelasticity","topic-tag-materials","topic-tag-mechanical","topic-tag-nonlinear-mechanics","topic-tag-structural-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_forum_id":["27814"],"_bbp_last_active_time":["1-24-2023  20:20:00"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["2050"],"siebel_km_number":["2057249"],"product_version":["19"],"km_published_date":["2018-11-27T17:46:18.000Z"],"family":["Structural Mechanics"],"application_name":["Mechanical"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/162125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/162125\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=162125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}