{"id":41208,"date":"2020-02-24T15:13:43","date_gmt":"2020-02-24T15:13:43","guid":{"rendered":"\/forum\/forums\/topic\/topology-optimization-3\/"},"modified":"2020-02-24T15:13:43","modified_gmt":"2020-02-24T15:13:43","slug":"topology-optimization-3","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/topology-optimization-3\/","title":{"rendered":"Topology Optimization"},"content":{"rendered":"<p>Hi,<\/p>\n<p><\/p>\n<p>I&nbsp;am using the builtin tool in ANSYS for topology optimization. There is an objective called &#8216;compliance&#8217; which is equal to the total strain energy OR the product of displacement of node&nbsp;with the nodal force (C = u&#8217; * F, or simply put, the stiffness of structure)<\/p>\n<p><\/p>\n<p>I am using a simple rectangular column and applying a force of 1 N in negative y direction (compressive force). I am also using volume constraint to retain 33% volume. Now, when I check the solution information, the objective value is different than the one I calculate manually by calculating the deformation\/movement of node in negative y direction and multiplying by nodal force..<\/p>\n<p><\/p>\n<p>My question is, HOW ANSYS is calculating the objective or compliance? Can you please help me out.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Thank you<\/p>\n","protected":false},"template":"","class_list":["post-41208","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi, I am using the builtin tool in ANSYS for topology optimization. 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