{"id":165456,"date":"2023-03-17T09:00:22","date_gmt":"2023-03-17T09:00:22","guid":{"rendered":"\/knowledge\/forums\/topic\/how-to-pick-the-value-of-incompressibility-parameter-d-when-we-want-to-add-small-amount-of-compressibility-to-the-hyperelastic-material\/"},"modified":"2023-07-31T12:31:18","modified_gmt":"2023-07-31T12:31:18","slug":"how-to-pick-the-value-of-incompressibility-parameter-d-when-we-want-to-add-small-amount-of-compressibility-to-the-hyperelastic-material","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-pick-the-value-of-incompressibility-parameter-d-when-we-want-to-add-small-amount-of-compressibility-to-the-hyperelastic-material\/","title":{"rendered":"How to pick the value of incompressibility parameter, D, when we want to add small amount of compressibility to the hyperelastic material?"},"content":{"rendered":"<p>The incompressibility parameter, D, is nothing but 2\/(initial bulk modulus). If you wish to add small amount of incompressibility (large but finite bulk modulus), then adding a small value for D will do it. Note that the parameter D has the units of 1\/stress. So, if the initial shear modulus of the material is, say 2.5 MPa, then a value of 1e-2 MPa^-1 would be a reasonable value for D.<\/p>\n","protected":false},"template":"","class_list":["post-165456","topic","type-topic","status-publish","hentry","topic-tag-4391","topic-tag-hyperelasticity","topic-tag-materials","topic-tag-mechanical","topic-tag-structural-mechanics"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["3\/15\/2023 20:20"],"_bbp_forum_id":["27814"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["2930"],"siebel_km_number":["2056077"],"product_version":["19"],"km_published_date":["2018-08-23T00:00:00.000Z"],"family":["Structural Mechanics"],"application_name":["Mechanical"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/165456","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\/165456\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=165456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}