{"id":374662,"date":"2024-08-01T12:59:43","date_gmt":"2024-08-01T12:59:43","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/why-stress-and-strain-do-not-change-with-time\/"},"modified":"2024-08-01T12:59:43","modified_gmt":"2024-08-01T12:59:43","slug":"why-stress-and-strain-do-not-change-with-time","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/why-stress-and-strain-do-not-change-with-time\/","title":{"rendered":"Why stress and strain do not change with time"},"content":{"rendered":"<div>I added a torque of 0.002N\/mm to the inner six surfaces of the screw that holds the bottom of the square. Why the stress on the threads is only 1 or 2 MPa and 600 MPa near the round hole, what is wrong with this\uff1f I selected some points and found that its stress and strain stabilized at the first step of loading and no longer varied with time later, so that the stress-strain curve is drawn as a single point, which is not logical. May I ask why this is so?<\/div>\n<div><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/01-08-2024-1722517167-mceclip1.png\"><\/div>\n<div>&nbsp;<\/div>\n<div>&nbsp;<\/div>\n<div><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/01-08-2024-1722517167-mceclip2.png\"><\/div>\n<div><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/01-08-2024-1722517167-mceclip0.png\"><\/div>\n","protected":false},"template":"","class_list":["post-374662","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I added a torque of 0.002N\/mm to the inner six surfaces of the screw that holds the bottom of the square. Why the stress on the threads is only 1 or 2 MPa and 600 MPa near the round hole, what is wrong with this\uff1f I selected some points and found that its stress and\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/why-stress-and-strain-do-not-change-with-time\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Why stress and strain do not change with time | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I added a torque of 0.002N\/mm to the inner six surfaces of the screw that holds the bottom of the square. Why the stress on the threads is only 1 or 2 MPa and 600 MPa near the round hole, what is wrong with this\uff1f I selected some points and found that its stress and\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/why-stress-and-strain-do-not-change-with-time\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/01-08-2024-1722517167-mceclip1.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/01-08-2024-1722517167-mceclip1.png\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-08-01T12:59:43+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-08-01T12:59:43+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Why stress and strain do not change with time | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"I added a torque of 0.002N\/mm to the inner six surfaces of the screw that holds the bottom of the square. Why the stress on the threads is only 1 or 2 MPa and 600 MPa near the round hole, what is wrong with this\uff1f I selected some points and found that its stress and\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/01-08-2024-1722517167-mceclip1.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/why-stress-and-strain-do-not-change-with-time\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/why-stress-and-strain-do-not-change-with-time\\\/#listItem\",\"name\":\"Why stress and strain do not change with time\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/why-stress-and-strain-do-not-change-with-time\\\/#listItem\",\"position\":3,\"name\":\"Why stress and strain do not change with time\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/why-stress-and-strain-do-not-change-with-time\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/why-stress-and-strain-do-not-change-with-time\\\/\",\"name\":\"Why stress and strain do not change with time | Ansys Learning Forum\",\"description\":\"I added a torque of 0.002N\\\/mm to the inner six surfaces of the screw that holds the bottom of the square. 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