{"id":170620,"date":"2023-06-05T07:04:51","date_gmt":"2023-06-05T07:04:51","guid":{"rendered":"\/knowledge\/forums\/topic\/difference-between-environment-temperature-and-reference-temperature-in-mechanical\/"},"modified":"2023-07-31T12:33:27","modified_gmt":"2023-07-31T12:33:27","slug":"difference-between-environment-temperature-and-reference-temperature-in-mechanical","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/difference-between-environment-temperature-and-reference-temperature-in-mechanical\/","title":{"rendered":"Difference Between Environment Temperature and Reference Temperature in Mechanical"},"content":{"rendered":"<p>Environment Temperature found in the details of the Static Structural object in the Mechanical tree is the temperature of the bodies unless this temperature is explicitly specified by a thermal condition or an imported temperature.  Now, if a thermal condition or imported temperature is specified, the  environment temperature becomes the reference temperature in the thermal strain equation given by \u03b1 *(T-TREF), where \u03b1 is the coefficient of thermal expansion.  Reference Temperature, which is found in the details of the individual bodies under the Geometry branch of the Mechanical Tree  is the thermal strain-free temperature of a body and again thermal strains are given by \u03b1 *(T-TREF), where \u03b1 is the coefficient of thermal expansion.  Note that reference temperature defaults to By Environment hence using the temperature specified in Environment Temperature.  By changing it to By Body, one can override the specification to differ for that particular body, while defaulting remaining bodies to By Environment, etc.   Please note that Reference Temperature that is found in engineering data under the secant coefficient of thermal expansion is NOT used for setting the strain free temperature.  Please also see solutions 2038325 and 2045884   for added explanation and details.<\/p>\n","protected":false},"template":"","class_list":["post-170620","topic","type-topic","status-publish","hentry","topic-tag-4425","topic-tag-mechanical","topic-tag-structural-mechanics-thermal","topic-tag-structural-and-thermal","topic-tag-structural-mechanics"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Environment Temperature found in the details of the Static Structural object in the Mechanical tree is the temperature of the bodies unless this temperature is explicitly specified by a thermal condition or an imported temperature. 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