{"id":158088,"date":"2022-06-06T09:58:37","date_gmt":"2022-06-06T09:58:37","guid":{"rendered":"\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/"},"modified":"2022-06-06T09:58:37","modified_gmt":"2022-06-06T09:58:37","slug":"why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/","title":{"rendered":"Why are reaction forces on nut surface less than the applied bolt pretension?"},"content":{"rendered":"<p>The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.<\/p>\n","protected":false},"template":"","class_list":["post-158088","topic","type-topic","status-publish","hentry","topic-tag-contact","topic-tag-reaction-forces"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/\" \/>\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 Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Why are reaction forces on nut surface less than the applied bolt pretension? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-06-06T09:58:37+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-06-06T09:58:37+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Why are reaction forces on nut surface less than the applied bolt pretension? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.\" \/>\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\\\/knowledge\\\/forums\\\/topic\\\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/contact\\\/#listItem\",\"name\":\"contact\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/contact\\\/#listItem\",\"position\":3,\"name\":\"contact\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/contact\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\\\/#listItem\",\"name\":\"Why are reaction forces on nut surface less than the applied bolt pretension?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\\\/#listItem\",\"position\":4,\"name\":\"Why are reaction forces on nut surface less than the applied bolt pretension?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/contact\\\/#listItem\",\"name\":\"contact\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\\\/\",\"name\":\"Why are reaction forces on nut surface less than the applied bolt pretension? | Ansys Knowledge\",\"description\":\"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\\\/#breadcrumblist\"},\"datePublished\":\"2022-06-06T09:58:37+00:00\",\"dateModified\":\"2022-06-06T09:58:37+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Why are reaction forces on nut surface less than the applied bolt pretension? | Ansys Knowledge","description":"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.","canonical_url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/knowledge","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/contact\/#listItem","name":"contact"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/contact\/#listItem","position":3,"name":"contact","item":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/contact\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/#listItem","name":"Why are reaction forces on nut surface less than the applied bolt pretension?"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/#listItem","position":4,"name":"Why are reaction forces on nut surface less than the applied bolt pretension?","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/contact\/#listItem","name":"contact"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization","name":"Ansys Knowledge","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/knowledge\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/#webpage","url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/","name":"Why are reaction forces on nut surface less than the applied bolt pretension? | Ansys Knowledge","description":"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/#breadcrumblist"},"datePublished":"2022-06-06T09:58:37+00:00","dateModified":"2022-06-06T09:58:37+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#website","url":"https:\/\/innovationspace.ansys.com\/knowledge\/","name":"Ansys Knowledge","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/knowledge\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Knowledge | Ansys Innovation Space","og:type":"article","og:title":"Why are reaction forces on nut surface less than the applied bolt pretension? | Ansys Knowledge","og:description":"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region.","og:url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/","article:published_time":"2022-06-06T09:58:37+00:00","article:modified_time":"2022-06-06T09:58:37+00:00","twitter:card":"summary_large_image","twitter:title":"Why are reaction forces on nut surface less than the applied bolt pretension? | Ansys Knowledge","twitter:description":"The contact region setup should be checked properly. If the nut surface has bonded contact with the flange and the same face is used in contact with another bolt, it is recommended to create proper contact. Split the face of the flange so that contact and target faces are unique for each contact region."},"aioseo_meta_data":{"post_id":"158088","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2025-10-17 18:03:39","updated":"2026-07-29 04:09:28","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/contact\/\" title=\"contact\">contact<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tWhy are reaction forces on nut surface less than the applied bolt pretension?\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/knowledge"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/"},{"label":"contact","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/contact\/"},{"label":"Why are reaction forces on nut surface less than the applied bolt pretension?","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-are-reaction-forces-on-nut-surface-less-than-the-applied-bolt-pretension\/"}],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["06-06-2022 20:20"],"_bbp_forum_id":["27795"],"_btv_view_count":["460"],"_bbp_likes_count":["0"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/158088","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\/158088\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=158088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}