{"id":181899,"date":"2024-02-21T12:28:13","date_gmt":"2024-02-21T12:28:13","guid":{"rendered":"\/knowledge\/?post_type=topic&#038;p=181899"},"modified":"2025-07-10T12:19:49","modified_gmt":"2025-07-10T12:19:49","slug":"how-to-apply-bolt-pretension-in-ansys-discovery","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-apply-bolt-pretension-in-ansys-discovery\/","title":{"rendered":"How to apply bolt Pretension in ANSYS Discovery?"},"content":{"rendered":"<p>Evaluation of the structural integrity of assemblies often involves proper modeling and analysis of <strong>bolted connections<\/strong>, including the consideration of bolt preload effects. <strong>Bolt pretension<\/strong> is a method used in structural analysis to simulate the preload that is applied when a bolt is tightened. This preload is important as it can affect the performance and safety of bolted joints. In Discovery, you can use the bolt pretension to model a bolt which is holding together two bodies by applying a known value of clamp force, grip length adjustment, or torque (to simulate the tightening of a nut or bolt). The Bolt Preload condition in the Refine stage applies a pretension load to a cylindrical face &#8212; typically to model a bolt under pretension. In addition, in both Explore and Refine stages, you can assign a bolt preload to a 1-D beam as a replacement to a 3-D bolt, created through bolt assignment tool.<\/p>\n<p>This video goes over various aspect of bolt pretension, how it can be applied in Discovery.<\/p>\n<p><iframe loading=\"lazy\" class=\"vidyard_iframe\" src=\"\/\/play.vidyard.com\/mqYAmZMpSEc2zyTx5zukrd.html?\" width=\"640\" height=\"360\" frameborder=\"0\"><\/iframe><\/p>\n<p>Please refer to this knowledge article to understand how you can use the bolt idealization tool to create 1D bolts: <a href=\"\/knowledge\/forums\/topic\/structural-simulation-using-bolt-idealization\/?template=discovery\">Structural Simulation using Bolt Idealization\u00a0<\/a><\/p>\n<hr \/>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-196803 size-medium\" src=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2024\/02\/Bolt_Preload_AIS_thmbnl-300x238.png\" alt=\"\" width=\"300\" height=\"238\" srcset=\"https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2024\/02\/Bolt_Preload_AIS_thmbnl-300x238.png 300w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2024\/02\/Bolt_Preload_AIS_thmbnl-24x19.png 24w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2024\/02\/Bolt_Preload_AIS_thmbnl-36x29.png 36w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2024\/02\/Bolt_Preload_AIS_thmbnl-48x38.png 48w, https:\/\/innovationspace.ansys.com\/knowledge\/wp-content\/uploads\/sites\/4\/2024\/02\/Bolt_Preload_AIS_thmbnl.png 458w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"template":"","class_list":["post-181899","topic","type-topic","status-publish","hentry","topic-tag-3d-bolt","topic-tag-analysis","topic-tag-assemblies","topic-tag-beam-analysis","topic-tag-bolt-assignment","topic-tag-bolt-idealization","topic-tag-bolt-pretension","topic-tag-bolted-connections","topic-tag-clamp-force","topic-tag-cylindrical-face","topic-tag-discovery-software","topic-tag-grip-length","topic-tag-modeling","topic-tag-nut-tightening","topic-tag-performance","topic-tag-pretension-load","topic-tag-pretension-video","topic-tag-refine-stage","topic-tag-safety","topic-tag-structural-integrity","topic-tag-torque","filter-by-application-discovery","filter-by-application-discovery-explore"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_edit_lock":["1752226732:3452"],"_edit_last":["3452"],"filter_by_optics_product":["Lumerical"],"_filter_by_optics_product":["field_64fb192ba3121"],"application_name":[""],"_application_name":["field_64a80903c8e15"],"family":[""],"_family":["field_64a809229a857"],"siebel_km_number":[""],"_siebel_km_number":["field_63ecbffce60db"],"salesforce_km_number":[""],"_salesforce_km_number":["field_63ecc018e60dc"],"km_published_date":[""],"_km_published_date":["field_64c77704499dd"],"product_version":[""],"_product_version":["field_64c776cb4fd2e"],"_bbp_forum_id":["159543"],"_bbp_topic_id":["196804"],"_yoast_wpseo_estimated-reading-time-minutes":["1"],"_wp_old_slug":["hoe-to-apply-bolt-pretension-in-ansys-discovery"],"_yoast_wpseo_content_score":["30"],"_btv_view_count":["6874"],"_yoast_wpseo_wordproof_timestamp":[""],"_aioseo_title":[null],"_aioseo_description":[null],"_aioseo_keywords":["a:0:{}"],"_aioseo_og_title":[null],"_aioseo_og_description":[null],"_aioseo_og_article_section":[""],"_aioseo_og_article_tags":["a:0:{}"],"_aioseo_twitter_title":[null],"_aioseo_twitter_description":[null]},"test":"watchlearnansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/181899","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":6,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/181899\/revisions"}],"predecessor-version":[{"id":196804,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/181899\/revisions\/196804"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=181899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}