{"id":272175,"date":"2026-02-24T13:24:19","date_gmt":"2026-02-24T18:24:19","guid":{"rendered":"https:\/\/www.solidxperts.com\/?post_type=techtips&#038;p=272175"},"modified":"2026-04-01T13:35:39","modified_gmt":"2026-04-01T17:35:39","slug":"definir-interactions-solidaires-solidworks-simulation","status":"publish","type":"techtips","link":"https:\/\/www.solidxperts.com\/fr\/blog\/definir-interactions-solidaires-solidworks-simulation\/","title":{"rendered":"Interactions solidaires dans SOLIDWORKS Simulation : bonne pratique et \u00e9tude de cas"},"content":{"rendered":"<p>[vc_row full_width=\u00a0\u00bbstretch_row_content\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1634769939600{background-color: #0d1327 !important;}\u00a0\u00bb el_class=\u00a0\u00bbpost-header\u00a0\u00bb][vc_column][vc_row_inner el_class=\u00a0\u00bbcontainer\u00a0\u00bb][vc_column_inner][vc_column_text el_class=\u00a0\u00bbhideme subtitle\u00a0\u00bb]<span style=\"color: white;\">BLOG<\/span>[\/vc_column_text][vc_column_text el_class=\u00a0\u00bbhideme title\u00a0\u00bb]<\/p>\n<div class=\"_kqswh2mm _otyr1ejb\">\n<div id=\"title-text\" class=\"_19pkidpf _2hwxidpf _otyridpf _18u0idpf _syaz1fxt _1nmz1hna _slp31hna _o57218hr _1tkeldb6 _80omtlke _1e0c1txw _1wnx1c04 _ik201h6o _15cmi7a9 _8lw010th _1mb8n7od _sf7z18uv _ca0qidpf _lcxv73ad\" data-test-id=\"title-text\" data-testid=\"title-text\">\n<h1 id=\"heading-title-text\" class=\"_11c81c04 _k48pi7a9 _1e0c1nu9\" style=\"text-align: center;\">Interactions solidaires dans SOLIDWORKS Simulation : bonne pratique et \u00e9tude de cas<\/h1>\n<\/div>\n<\/div>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row el_class=\u00a0\u00bbcontainer post-featured\u00a0\u00bb][vc_column][vc_column_text el_class=\u00a0\u00bbreturn-link\u00a0\u00bb]<a href=\"https:\/\/www.solidxperts.com\/fr\/blog\/\">Retour<\/a>[\/vc_column_text][vc_column_text el_class=\u00a0\u00bbhideme\u00a0\u00bb]<div 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style=\"background-color:#649a3f;width:35px;height:35px;border-radius:5px;display:inline-block;opacity:1;float:left;font-size:32px;box-shadow:none;display:inline-block;font-size:16px;padding:0 4px;vertical-align:middle;background-repeat:repeat;overflow:hidden;padding:0;cursor:pointer;box-sizing:content-box\"><svg style=\"display:block;\" focusable=\"false\" aria-hidden=\"true\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"100%\" height=\"100%\" viewBox=\"-.75 -.5 36 36\"><path d=\"M 5.5 11 h 23 v 1 l -11 6 l -11 -6 v -1 m 0 2 l 11 6 l 11 -6 v 11 h -22 v -11\" stroke-width=\"1\" fill=\"#CCFC4C\"><\/path><\/svg><\/span><\/a><\/div><div class=\"heateorSssClear\"><\/div><\/div>[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=\u00a0\u00bbcontainer post-content\u00a0\u00bb][vc_column][vc_column_text]<\/p>\n<p data-renderer-start-pos=\"1\" data-local-id=\"b2b24bf6897e\">Vous vous demandez quel type d\u2019interaction utiliser dans SOLIDWORKS Simulation pour repr\u00e9senter une soudure ou pour lier deux corps afin qu\u2019ils ne se s\u00e9parent pas pendant l\u2019analyse ?<\/p>\n<p data-renderer-start-pos=\"185\" data-local-id=\"f66b54247f55\">Prenons l\u2019exemple d\u2019un support connectant des composants critiques d\u2019un produit. Comment s\u2019assurer que la simulation repr\u00e9sente fid\u00e8lement le comportement r\u00e9el avant de lancer l\u2019analyse ?<\/p>\n<p data-renderer-start-pos=\"374\" data-local-id=\"4c8a61766a2a\">Apr\u00e8s avoir lu ce blog, vous conna\u00eetrez les \u00e9tapes cl\u00e9s pour d\u00e9finir correctement les interactions solidaires dans SOLIDWORKS Simulation.<\/p>\n<h2 id=\"Repr\u00e9sentation-de-l\u2019interaction-solidaire\" data-local-id=\"f87e6de5cf63\" data-renderer-start-pos=\"513\"><strong data-renderer-mark=\"true\">Repr\u00e9sentation de l\u2019interaction solidaire<\/strong><\/h2>\n<p data-renderer-start-pos=\"556\" data-local-id=\"0961cb45670f\">Dans SOLIDWORKS Simulation, une interaction solidaire permet de connecter deux corps ou plus de mani\u00e8re \u00e0 ce qu\u2019aucun mouvement relatif ne soit autoris\u00e9 \u00e0 leur interface. Un exemple typique est le soudage d\u2019un support \u00e0 un autre composant pour renforcer une structure et r\u00e9duire les contraintes dans les zones critiques.<\/p>\n<p data-renderer-start-pos=\"878\" data-local-id=\"3c2f6bd0d759\">Une interaction solidaire \u00e9quivaut \u00e0 fusionner des corps tout en permettant \u00e0 chaque pi\u00e8ce de conserver ses propres propri\u00e9t\u00e9s de mat\u00e9riau. Une fois d\u00e9finie, les corps connect\u00e9s sont consid\u00e9r\u00e9s comme ne pouvant jamais se s\u00e9parer pendant l\u2019analyse. Cela repr\u00e9sente une soudure id\u00e9ale et parfaitement rigide. Bien qu&rsquo;une telle condition n&rsquo;existe pas en r\u00e9alit\u00e9, elle constitue souvent une hypoth\u00e8se raisonnable et efficace lorsqu&rsquo;un comportement de soudure quasi parfait est attendu.<\/p>\n<p data-renderer-start-pos=\"1361\" data-local-id=\"cd7a0b927ff8\">Une interaction de type solidaire ne doit pas \u00eatre utilis\u00e9e pour repr\u00e9senter une condition de contact (anciennement appel\u00e9e Pas de p\u00e9n\u00e9tration) ni aucune situation o\u00f9 un glissement entre les composants est pr\u00e9vu.<\/p>\n<p data-renderer-start-pos=\"1575\" data-local-id=\"d3226cf38562\">Dans certains cas, il peut toutefois \u00eatre acceptable d&rsquo;utiliser une interaction de type solidaire plut\u00f4t que de d\u00e9finir plusieurs conditions de contact afin de simplifier l&rsquo;analyse. C&rsquo;est le cas, par exemple, d&rsquo;une tige filet\u00e9e, pour laquelle un comportement local d\u00e9taill\u00e9 n&rsquo;est pas n\u00e9cessaire et o\u00f9 l&rsquo;objectif est de capturer la r\u00e9ponse structurelle globale plut\u00f4t que les contraintes locales.<\/p>\n<p data-renderer-start-pos=\"1972\" data-local-id=\"42e06282ab30\">Le raffinement du maillage joue un r\u00f4le essentiel dans l&rsquo;obtention de r\u00e9sultats pr\u00e9cis \u00e0 proximit\u00e9 des zones d&rsquo;interaction de type solidaire. L&rsquo;ajustement des param\u00e8tres globaux du maillage ou l&rsquo;application de contr\u00f4les locaux du maillage peuvent am\u00e9liorer significativement sa coh\u00e9rence \u00e0 l&rsquo;interface et contribuer \u00e0 garantir des r\u00e9sultats fiables et pertinents.<\/p>\n<h2 data-start=\"121\" data-end=\"216\"><strong data-start=\"121\" data-end=\"216\">Hypoth\u00e8ses de mod\u00e9lisation : utilisation des interactions solidaires dans une structure soud\u00e9e<\/strong><\/h2>\n<p data-local-id=\"48e922077adc\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Nous allons examiner l&rsquo;\u00e9tude de cas suivante pour illustrer l&rsquo;application de l&rsquo;interaction de type solidaire. Voir l&rsquo;image ci-dessous :<\/p>\n<figure id=\"attachment_272169\" aria-describedby=\"caption-attachment-272169\" style=\"width: 469px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201715.png\"><img decoding=\"async\" class=\"wp-image-272169\" src=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201715-300x169.png\" alt=\"Jib crane case study highlighting potential bonded interaction locations\" width=\"469\" height=\"264\" srcset=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201715-300x169.png 300w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201715-768x432.png 768w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201715-600x337.png 600w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201715.png 898w\" sizes=\"(max-width: 469px) 100vw, 469px\" \/><\/a><figcaption id=\"caption-attachment-272169\" class=\"wp-caption-text\">\u00c9tude de cas de potence de levage mettant en \u00e9vidence les emplacements potentiels d&rsquo;interactions solidaires<\/figcaption><\/figure>\n<p data-renderer-start-pos=\"2630\" data-local-id=\"57908497b22b\">Dans cette \u00e9tude de cas de potence de levage, les goussets sont soud\u00e9s \u00e0 la colonne et \u00e0 la plaque de fixation afin d&rsquo;augmenter la r\u00e9sistance globale de la zone. Compte tenu de la nature du probl\u00e8me, nous supposons que les pi\u00e8ces sont li\u00e9es entre elles et qu&rsquo;il n&rsquo;existe aucun mouvement relatif entre elles. Par cons\u00e9quent, nous pouvons appliquer une interaction solidaire \u00e0 cet emplacement pour repr\u00e9senter plusieurs interactions de soudage.<\/p>\n<p data-renderer-start-pos=\"3074\" data-local-id=\"6637532fbb0b\">Veuillez noter qu&rsquo;il n&rsquo;est pas n\u00e9cessaire de mod\u00e9liser la soudure comme une pi\u00e8ce ou un corps distinct dans SOLIDWORKS. Cela simplifie le mod\u00e8le et le travail de l&rsquo;analyste, tout en ne n\u00e9cessitant que des informations suppl\u00e9mentaires minimales.<\/p>\n<p data-renderer-start-pos=\"3320\" data-local-id=\"75ed5f6ca3cf\">Comme pour toute hypoth\u00e8se de mod\u00e9lisation, l&rsquo;utilisation d&rsquo;interactions solidaires doit toujours \u00eatre align\u00e9e sur les objectifs de l&rsquo;analyse et le niveau de pr\u00e9cision requis.<\/p>\n<h2 data-start=\"1726\" data-end=\"1791\">Interactions solidaires globales vs locales : configuration et bonnes pratiques<\/h2>\n<p data-local-id=\"e6d65956a936\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Voici la section la plus attendue de ce blog : comment d\u00e9finir l&rsquo;interaction solidaire. Il existe plusieurs fa\u00e7ons de d\u00e9finir les interactions solidaires dans SOLIDWORKS Simulation. La bonne nouvelle est que l&rsquo;option par d\u00e9faut lors de la cr\u00e9ation d&rsquo;une analyse de contraintes avec SOLIDWORKS Simulation est configur\u00e9e pour appliquer une interaction de type solidaire au niveau global. Cela signifie que pour des corps solides co\u00efncidents, aucune d\u00e9finition d&rsquo;interaction suppl\u00e9mentaire n&rsquo;est requise tant que le type d&rsquo;interaction global est d\u00e9fini sur \u00ab Solidaire \u00bb. L&rsquo;interaction de type solidaire globale se trouve dans l&rsquo;arbre de simulation, dans le dossier \u00ab Connexions \u00bb, sous \u00ab Interactions entre composants \u00bb. Des options suppl\u00e9mentaires peuvent \u00eatre configur\u00e9es pour prendre en compte un jeu entre les corps. L&rsquo;image suivante illustre un cas o\u00f9 une interaction de type solidaire d\u00e9j\u00e0 d\u00e9finie par d\u00e9faut peut suffire, ce qui signifie qu&rsquo;aucune \u00e9tape suppl\u00e9mentaire n&rsquo;est requise :<\/p>\n<figure id=\"attachment_272171\" aria-describedby=\"caption-attachment-272171\" style=\"width: 472px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201745.png\"><img decoding=\"async\" class=\"wp-image-272171 \" src=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201745-300x169.png\" alt=\"\u00a0Alternative jib crane design where the gussets fit into slotted holes\" width=\"472\" height=\"266\" srcset=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201745-300x169.png 300w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201745-768x432.png 768w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201745-600x337.png 600w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201745.png 898w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><\/a><figcaption id=\"caption-attachment-272171\" class=\"wp-caption-text\">Conception alternative d&rsquo;une potence de levage o\u00f9 les goussets s&rsquo;ins\u00e8rent dans des trous oblongs<\/figcaption><\/figure>\n<p data-local-id=\"42f530f79476\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Dans certains cas sp\u00e9cifiques, une interaction solidaire doit \u00eatre d\u00e9finie au niveau local, ce qui n\u00e9cessite une d\u00e9finition dans le logiciel. Cela peut \u00eatre le cas pour des pi\u00e8ces avec diff\u00e9rents types de maillage ou des incoh\u00e9rences g\u00e9om\u00e9triques. Prenons l&rsquo;exemple d&rsquo;une \u00e9tude de cas o\u00f9 il existe un petit jeu entre le gousset et la colonne, o\u00f9 une interaction de type solidaire est n\u00e9cessaire pour repr\u00e9senter une soudure.<\/p>\n<h2 id=\"Pour-d\u00e9finir-une-interaction-solidaire-locale-:\" data-local-id=\"b589d3368ec4\" data-renderer-start-pos=\"5064\">Pour d\u00e9finir une interaction solidaire locale :<\/h2>\n<ul>\n<li data-renderer-start-pos=\"5115\" data-local-id=\"6abd689e1557\">Dans l\u2019arbre de simulation, cliquez avec le bouton droit sur Connexions et s\u00e9lectionnez Interaction locale.<\/li>\n<li>\n<p data-renderer-start-pos=\"5228\" data-local-id=\"d5b7552b9ac6\">Dans type, choisissez Solidaire.<\/p>\n<\/li>\n<li>\n<p data-renderer-start-pos=\"5266\" data-local-id=\"dd4607d16ae3\">Dans la zone de s\u00e9lection bleue, s\u00e9lectionnez la premi\u00e8re entit\u00e9 (id\u00e9alement la plus petite).<\/p>\n<\/li>\n<li>\n<p data-renderer-start-pos=\"5365\" data-local-id=\"8f7767707b7f\">Dans la zone de s\u00e9lection rose, s\u00e9lectionnez la deuxi\u00e8me entit\u00e9 (id\u00e9alement la plus grande).<\/p>\n<\/li>\n<li>\n<p data-renderer-start-pos=\"5463\" data-local-id=\"41870dba0e2d\">Vous pouvez s\u00e9lectionner plusieurs entit\u00e9s si n\u00e9cessaire.<\/p>\n<\/li>\n<li>\n<p data-renderer-start-pos=\"5526\" data-local-id=\"3b6d5fd09b73\">Si besoin, d\u00e9finissez des options suppl\u00e9mentaires telles que la plage de discontinuit\u00e9 (jeu).<\/p>\n<\/li>\n<\/ul>\n<figure id=\"attachment_272173\" aria-describedby=\"caption-attachment-272173\" style=\"width: 463px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201809.png\"><img decoding=\"async\" class=\"wp-image-272173\" src=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201809-300x169.png\" alt=\"Local bonded interaction definition\" width=\"463\" height=\"261\" srcset=\"https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201809-300x169.png 300w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201809-768x432.png 768w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201809-600x337.png 600w, https:\/\/www.solidxperts.com\/wp-content\/uploads\/2026\/02\/image-20260219-201809.png 898w\" sizes=\"(max-width: 463px) 100vw, 463px\" \/><\/a><figcaption id=\"caption-attachment-272173\" class=\"wp-caption-text\">D\u00e9finition d\u2019une interaction de liaison locale<\/figcaption><\/figure>\n<h2 data-start=\"114\" data-end=\"193\"><strong data-start=\"114\" data-end=\"193\">Interpr\u00e9tation des r\u00e9sultats lors de l\u2019utilisation des interactions solidaires<\/strong><\/h2>\n<p data-local-id=\"6d13b852f81a\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Une fois les calculs termin\u00e9s et l&rsquo;\u00e9tape de validation des r\u00e9sultats atteinte, il est crucial de bien comprendre leur interpr\u00e9tation. L&rsquo;ajout d&rsquo;interactions solidaires superflues tend \u00e0 accro\u00eetre artificiellement la rigidit\u00e9 de la structure. Le mod\u00e8le peut alors para\u00eetre plus robuste qu&rsquo;il ne l&rsquo;est r\u00e9ellement, ce qui conduit \u00e0 une analyse non conservative. Il est donc important d&rsquo;en tenir compte et de s&rsquo;assurer que l&rsquo;analyse repr\u00e9sente fid\u00e8lement le cas d&rsquo;\u00e9tude r\u00e9el. Une animation des r\u00e9sultats est un excellent moyen de v\u00e9rifier la conformit\u00e9 du comportement de la structure aux attentes. Il faut s&rsquo;attendre \u00e0 des concentrations de contraintes pr\u00e8s des ar\u00eates pr\u00e9sentant des interactions solidaires et porter une attention particuli\u00e8re aux singularit\u00e9s de contrainte. Si n\u00e9cessaire, tracez les forces de r\u00e9action et comparez-les aux charges appliqu\u00e9es. Si les r\u00e9sultats sont incoh\u00e9rents, il est important de revoir la configuration de l&rsquo;analyse et de la relancer.<\/p>\n<h2 data-local-id=\"80980b15b8fb\" data-prosemirror-content-type=\"node\" data-prosemirror-node-name=\"paragraph\" data-prosemirror-node-block=\"true\">Points cl\u00e9s sur les interactions solidaires dans SOLIDWORKS Simulation<\/h2>\n<p data-renderer-start-pos=\"6692\" data-local-id=\"077799983914\">Dans ce blogue, nous avons explor\u00e9 l&rsquo;application des interactions solidaires afin de mieux comprendre leur signification et leurs domaines d&rsquo;utilisation.<\/p>\n<p data-renderer-start-pos=\"6847\" data-local-id=\"dc1686a57ff1\">\u00c0 travers l\u2019\u00e9tude de cas d\u2019une potence de levage, nous avons illustr\u00e9 la cr\u00e9ation d\u2019interactions solidaires globales et locales. En analyse par \u00e9l\u00e9ments finis, la qualit\u00e9 des r\u00e9sultats repose avant tout sur la pertinence des hypoth\u00e8ses et des choix de mod\u00e9lisation.<\/p>\n<p data-renderer-start-pos=\"7114\" data-local-id=\"77f5d3db62d7\">En plus des interactions, il y a aussi d\u2019autres fonctionnalit\u00e9s qui doivent \u00eatre ma\u00eetris\u00e9es pour r\u00e9aliser des simulations fiables et adapt\u00e9es \u00e0 vos objectifs. Si vous d\u00e9sirez approfondir vos connaissances sur SOLIDWORKS Simulation, plusieurs ressources sont disponibles pour vous accompagner dans votre progression.<\/p>\n<p data-renderer-start-pos=\"7431\" data-local-id=\"d0812dea39e2\">Vous pouvez consulter nos autres blogs techniques sur notre site web pour en savoir plus\u00a0: <span data-inline-card=\"true\" data-card-url=\"https:\/\/www.solidxperts.com\/fr\/blog\/\" data-annotation-inline-node=\"true\" data-annotation-mark=\"true\" data-renderer-start-pos=\"7523\"><span class=\"loader-wrapper\"><span class=\"hover-card-trigger-wrapper\" data-testid=\"hover-card-trigger-wrapper\"><a class=\"_1yt4x7n9 _2rko12b0 _v56415x0 _1e0c1nu9 _16d9qvcn _syaz13af _1rkwglyw _4cvx1w55 _19itia51 _bfhkhp5a _1a3b1r31 _4fprglyw _5goinqa1 _9oik1r31 _1bnxglyw _jf4cnqa1 _1nrm1r31 _c2waglyw _1iohnqa1 _uizt1kdv _nt751r31 _49pcglyw _1hvw1o36 _1372tlke _7ehiw5lj _1j5pglyw _1di615s3\" tabindex=\"0\" role=\"button\" href=\"https:\/\/www.solidxperts.com\/fr\/blog\/\" data-testid=\"inline-card-resolved-view\"><span class=\"_19itglyw _vchhusvi _r06hglyw _o5721jtm _1nmz9jpi _16d9qvcn _ca0qv77o _u5f31b66 _n3tdv77o _19bv1b66\" data-testid=\"inline-card-icon-and-title\"><span class=\"_19itglyw _vchhusvi _r06hglyw\">Le Blog Technique &#8211; 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