{"id":2895,"date":"2026-10-01T12:24:47","date_gmt":"2026-10-01T10:24:47","guid":{"rendered":"https:\/\/3units.ch\/?post_type=prodotti&#038;p=2895"},"modified":"2026-10-09T14:37:40","modified_gmt":"2026-10-09T12:37:40","slug":"sigma-rohr2fesu","status":"publish","type":"prodotti","link":"https:\/\/3units.ch\/en\/products\/sigma-rohr2fesu\/","title":{"rendered":"ROHR2fesu"},"content":{"rendered":"\n<section class=\"wp-block-site-columns block-accordion navigation-section space-top\" id=\"overview\"><div class=\"container\"><div class=\"row\">\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg-12\">\n<p class=\"wp-block-paragraph\">ROHR2fesu is an optional ROHR2 module for finite element analysis of local areas in piping and vessels. It transforms selected parts of the global model into shell element substructures, allowing stiffness, deformation and stress to be assessed in critical components without rebuilding the system separately.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg-12\"><div class=\"wrap-accordion-section\">\n        \n    <div class=\"accordion\">\n                    <div class=\"accordion-item\">\n                <h2 class=\"accordion-header titolo_pb h2\" id=\"heading-accordion-1\">\n                    <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\"\n                            data-bs-target=\"#collapse-accordion-1\"\n                            aria-expanded=\"true\" aria-controls=\"collapse-accordion-1\">\n                        <h3>What is it for?<\/h3>\n\n                    <\/button>\n                <\/h2>\n                <div id=\"collapse-accordion-1\" class=\"accordion-collapse collapse\"\n                     aria-labelledby=\"heading-accordion-1\">\n                    <div class=\"accordion-body\">\n                        <p>ROHR2fesu supports the detailed analysis of branches, nozzles, fittings, bends, reinforcements and non-standard components. Parametric model generation, automatic meshing and direct load transfer from ROHR2 simplify the assessment of stress concentrations and complex local conditions.<\/p>\n\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"accordion-item\">\n                <h2 class=\"accordion-header titolo_pb h2\" id=\"heading-accordion-2\">\n                    <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\"\n                            data-bs-target=\"#collapse-accordion-2\"\n                            aria-expanded=\"true\" aria-controls=\"collapse-accordion-2\">\n                        <h3>Who is it for?<\/h3>\n\n                    <\/button>\n                <\/h2>\n                <div id=\"collapse-accordion-2\" class=\"accordion-collapse collapse\"\n                     aria-labelledby=\"heading-accordion-2\">\n                    <div class=\"accordion-body\">\n                        <p>It is designed for engineers, designers and specialists involved in the structural verification of piping and pressure vessels. It is particularly suitable for engineering companies, plant manufacturers, component suppliers and organizations that need to assess geometries not adequately represented by simplified methods.<\/p>\n\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"accordion-item\">\n                <h2 class=\"accordion-header titolo_pb h2\" id=\"heading-accordion-3\">\n                    <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\"\n                            data-bs-target=\"#collapse-accordion-3\"\n                            aria-expanded=\"true\" aria-controls=\"collapse-accordion-3\">\n                        <h3>Industry applications<\/h3>\n\n                    <\/button>\n                <\/h2>\n                <div id=\"collapse-accordion-3\" class=\"accordion-collapse collapse\"\n                     aria-labelledby=\"heading-accordion-3\">\n                    <div class=\"accordion-body\">\n                        <ul>\n<li>Industrial plant engineering<\/li>\n<li>Oil &amp; Gas<\/li>\n<li>Energy<\/li>\n<li>Chemical and petrochemical<\/li>\n<li>Pharmaceutical<\/li>\n<li>Water treatment<\/li>\n<li>Pressure vessel manufacturing<\/li>\n<li>Mechanical engineering<\/li>\n<li>Thermal power plants<\/li>\n<li>Process plants<\/li>\n<\/ul>\n\n                    <\/div>\n                <\/div>\n            <\/div>\n            <\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg-12\"><div class=\"block-slider-video vertical-space\">\n            <div class=\"wrap-video\">\n            <iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/NpjgSClkzMs?si=nM9SgkZodVHXh4cL\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n        <\/div>\n    <\/div>\n<\/div>\n<\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-site-columns block-icon-boxes navigation-section space-bottom\" id=\"benefits\"><div class=\"container\"><div class=\"row\">\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg\">\n<h2 class=\"wp-block-pd-site-title section-title d-block h2  has-text-color has-link-color wp-elements-1\" style=\"color:#0277bd\">Benefits<\/h2>\n\n\n            <div class=\"row gx-md-5 row-boxes\">\n        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/10\/magnifying-glass-plus.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Detail<\/h3>\n<\/div>\n            <div class=\"text\"><p>Local FEM analysis assesses stresses, deformation and stiffness in critical components with a higher level of insight than simplified calculation methods.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n                        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/link.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Integration<\/h3>\n<\/div>\n            <div class=\"text\"><p>Shell substructures remain connected to the global ROHR2 model, keeping geometry, operating conditions, loads and calculations fully coordinated.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n                        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/hand.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Automation<\/h3>\n<\/div>\n            <div class=\"text\"><p>The initial model, connecting elements and mesh are generated automatically from the segment selected within the complete piping system.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n            <\/div>\n                        <div class=\"row gx-md-5 row-boxes\">\n        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/crosshair.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Accuracy<\/h3>\n<\/div>\n            <div class=\"text\"><p>Stress distribution is calculated directly on the local geometry, making it possible to identify concentrations and the most highly stressed or deformed areas.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n                        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/timer.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Speed<\/h3>\n<\/div>\n            <div class=\"text\"><p>Parametric modelling and automatic load transfer reduce manual operations and accelerate the preparation of detailed finite element assessments.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n                        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/sliders-horizontal.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Flexibility<\/h3>\n<\/div>\n            <div class=\"text\"><p>Combinable superelements represent piping, fittings, nozzles, reinforcements and special geometries, adapting the model to the actual characteristics of each component.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n            <\/div>\n                        <div class=\"row gx-md-5 row-boxes\">\n        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/seal-check.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Compliance<\/h3>\n<\/div>\n            <div class=\"text\"><p>Stresses can be assessed according to EN 13445, ASME Section VIII Division 2 and AD S4, supporting different international regulatory requirements.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n                        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/chart-line-up.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Optimization<\/h3>\n<\/div>\n            <div class=\"text\"><p>Geometries, thicknesses, fillets can be modified and recalculated to compare configurations and improve the structural behaviour of components.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n                        <div class=\"col-md-4\">\n        <div class=\"box\">\n            <figure class=\"wrap-icon\">\n                <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/10\/file-text.svg\" alt=\"\">\n            <\/figure>\n            <div class=\"title\"><h3>Documentation<\/h3>\n<\/div>\n            <div class=\"text\"><p>Results, deformation and utilization levels are displayed graphically and collected in updatable reports, simplifying analysis, comparison and sharing.<\/p>\n<\/div>\n        <\/div>\n    <\/div>\n            <\/div>\n            <\/div>\n<\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-site-columns block-slider-video navigation-section space-bottom\" id=\"features\"><div class=\"container\"><div class=\"row\">\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg-12\">\n<h2 class=\"wp-block-pd-site-title section-title d-block h2  has-text-color has-link-color wp-elements-2\" style=\"color:#0277bd\">Features<\/h2>\n\n\n<div class=\"\">\n            <div class=\"wrap-slider\">\n            <div class=\"site-slider swiper\">\n                <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                            <div class=\"content\">\n                                <img decoding=\"async\" class=\"image\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/10\/ROHR2fesu-2-1405x0-c-default.jpg\"\n                                     alt=\"\">\n                                <div class=\"slide-title\"><h3>Mesh generation<\/h3>\n<\/div>\n                                <div class=\"slide-text\"><p>Parametric geometry is automatically divided into shell elements, with the option to control and modify mesh resolution in the most critical areas.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                            <div class=\"swiper-slide\">\n                            <div class=\"content\">\n                                <img decoding=\"async\" class=\"image\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/10\/ROHR2fesu-3-1405x0-c-default.jpg\"\n                                     alt=\"\">\n                                <div class=\"slide-title\"><h3>Stress analysis<\/h3>\n<\/div>\n                                <div class=\"slide-text\"><p>Colour scales and graphical representations show stress distribution, deformation and utilization levels, helping identify local concentrations.<\/p>\n<\/div>\n                            <\/div>\n                        <\/div>\n                                    <\/div>\n                \n                <div class=\"swiper-button-next\"><\/div>\n                <div class=\"swiper-button-prev\"><\/div>\n            <\/div>\n            \n            <div class=\"swiper thumbs-slider\">\n                <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                            <img loading=\"lazy\" decoding=\"async\" class=\"thumb\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/10\/ROHR2fesu-2-105x105-c-default.jpg\"\n                                 alt=\"\" width=\"105\" height=\"105\">\n                        <\/div>\n                                            <div class=\"swiper-slide\">\n                            <img loading=\"lazy\" decoding=\"async\" class=\"thumb\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/10\/ROHR2fesu-3-105x105-c-default.jpg\"\n                                 alt=\"\" width=\"105\" height=\"105\">\n                        <\/div>\n                                    <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n<\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-site-columns block-col-list navigation-section space-bottom\" id=\"capabilities\"><div class=\"container\"><div class=\"row\">\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg\">\n<h2 class=\"wp-block-pd-site-title section-title d-block h2  has-text-color has-link-color wp-elements-3\" style=\"color:#0277bd\">Capabilities<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>FEM analysis with shell elements<\/li>\n\n\n\n<li>Full integration with ROHR2<\/li>\n\n\n\n<li>Parametric modelling<\/li>\n\n\n\n<li>Automatic mesh generation<\/li>\n\n\n\n<li>Mesh resolution control<\/li>\n\n\n\n<li>Automatic load transfer<\/li>\n\n\n\n<li>Stress and deformation analysis<\/li>\n\n\n\n<li>Graphical result visualization<\/li>\n\n\n\n<li>Automatic report generation<\/li>\n\n\n\n<li>Superelement library<\/li>\n\n\n\n<li>Modelling of bends and fittings<\/li>\n\n\n\n<li>Modelling of nozzles and branches<\/li>\n\n\n\n<li>Analysis according to EN 13445, ASME VIII Div. 2 and AD S4<\/li>\n\n\n\n<li>Management of reinforcements, fillets and non-standard geometries<\/li>\n\n\n\n<li>Integration of substructures into the global piping model<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-site-columns block-icon-link-boxes navigation-section space-bottom\" id=\"application-areas\"><div class=\"container\"><div class=\"row\">\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg\">\n<h2 class=\"wp-block-pd-site-title section-title d-block h2  has-text-color has-link-color wp-elements-4\" style=\"color:#0277bd\">Application areas<\/h2>\n\n\n<div class=\"row gx-md-5 row-boxes\">\n            <div class=\"col-md-4\">\n                        <a class=\"box\" href=\"https:\/\/www.rohr2.com\/en\/rohr2fesu.html\"\n            target=\"_blank\" rel=\"noopener noreferrer\"            >\n                <figure class=\"wrap-icon\">\n                    <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/09\/git-branch.svg\" alt=\"\">\n                <\/figure>\n                <div class=\"content\">\n                    <div class=\"subtitle\"><p>Branches<\/p>\n<\/div>\n                    <div class=\"title\"><p>Local analysis of tees, fittings, branches and intersections subject to stress concentrations and complex loading conditions.<\/p>\n<\/div>\n                    <img decoding=\"async\" class=\"bottom-icon\" src=\"https:\/\/3units.ch\/wp-content\/themes\/wp-3units\/dist\/images\/arrow-right.svg\"\n                         alt=\"Read more\">\n                <\/div>\n            <\/a>\n        <\/div>\n            <div class=\"col-md-4\">\n                        <a class=\"box\" href=\"https:\/\/www.rohr2.com\/en\/rohr2fesu.html\"\n            target=\"_blank\" rel=\"noopener noreferrer\"            >\n                <figure class=\"wrap-icon\">\n                    <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2025\/01\/cylinder.svg\" alt=\"\">\n                <\/figure>\n                <div class=\"content\">\n                    <div class=\"subtitle\"><p>Nozzles and vessels<\/p>\n<\/div>\n                    <div class=\"title\"><p>Verification of nozzles and vessel connections with or without reinforcement, considering geometry, loads and internal pressure.<\/p>\n<\/div>\n                    <img decoding=\"async\" class=\"bottom-icon\" src=\"https:\/\/3units.ch\/wp-content\/themes\/wp-3units\/dist\/images\/arrow-right.svg\"\n                         alt=\"Read more\">\n                <\/div>\n            <\/a>\n        <\/div>\n            <div class=\"col-md-4\">\n                        <a class=\"box\" href=\"https:\/\/www.rohr2.com\/en\/rohr2fesu.html\"\n            target=\"_blank\" rel=\"noopener noreferrer\"            >\n                <figure class=\"wrap-icon\">\n                    <img decoding=\"async\" class=\"icon\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2026\/10\/wrench.svg\" alt=\"\">\n                <\/figure>\n                <div class=\"content\">\n                    <div class=\"subtitle\"><p>Special components<\/p>\n<\/div>\n                    <div class=\"title\"><p>Assessment of bends, reducers, supports and non-standard components where code-based coefficients are insufficient or unavailable.<\/p>\n<\/div>\n                    <img decoding=\"async\" class=\"bottom-icon\" src=\"https:\/\/3units.ch\/wp-content\/themes\/wp-3units\/dist\/images\/arrow-right.svg\"\n                         alt=\"Read more\">\n                <\/div>\n            <\/a>\n        <\/div>\n    <\/div>\n<\/div>\n<\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-site-columns block-resources-list navigation-section space-bottom\" id=\"resources\"><div class=\"container\"><div class=\"row\">\n<div class=\"wp-block-site-column col-12 col-md-12 col-lg\">\n<h2 class=\"wp-block-pd-site-title section-title d-block h2  has-text-color has-link-color wp-elements-5\" style=\"color:#0277bd\">Resources<\/h2>\n\n\n<div class=\"row gx-md-5\">\n            <div class=\"col-md-6 list-col\">\n                                    <a class=\"button cta no-icon\" href=\"https:\/\/3units.ch\/en\/engineering\/\"\n                                    >\n                All services\n\n                <img decoding=\"async\" class=\"i\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2025\/04\/arrow-right.svg\" alt=\"\">\n            <\/a>\n        <\/div>\n            <div class=\"col-md-6 list-col\">\n                                    <a class=\"button cta no-icon\" href=\"https:\/\/3units.ch\/en\/news\/\"\n                                    >\n                What\u2019s new\n\n                <img decoding=\"async\" class=\"i\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2025\/04\/arrow-right.svg\" alt=\"\">\n            <\/a>\n        <\/div>\n            <div class=\"col-md-6 list-col\">\n                                    <a class=\"button cta no-icon\" href=\"https:\/\/www.rohr2.com\/files\/content\/rohr2\/pdf_rohr2\/ROHR2fesu_Featurelist.pdf\"\n            target=\"_blank\" rel=\"noopener noreferrer\"                        >\n                Documentation\n\n                <img decoding=\"async\" class=\"i\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2025\/04\/file-pdf.svg\" alt=\"\">\n            <\/a>\n        <\/div>\n            <div class=\"col-md-6 list-col\">\n                                    <a class=\"button cta no-icon\" href=\"https:\/\/3units.ch\/en\/contact\/\"\n                                    >\n                Contact us\n\n                <img decoding=\"async\" class=\"i\" src=\"https:\/\/3units.ch\/wp-content\/uploads\/2025\/04\/arrow-right-1.svg\" alt=\"\">\n            <\/a>\n        <\/div>\n    <\/div>\n<\/div>\n<\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>FEM module integrated into ROHR2 for detailed analysis of piping, connections and pressure vessels.<\/p>\n","protected":false},"featured_media":2897,"template":"","meta":{"_acf_changed":true,"inline_featured_image":false},"categoria-prodotti":[31],"class_list":["post-2895","prodotti","type-prodotti","status-publish","has-post-thumbnail","hentry","categoria-prodotti-sigma"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ROHR2fesu - 3Units<\/title>\n<meta name=\"description\" content=\"Analyse local stresses and deformation in piping and vessels with ROHR2fesu, the finite element analysis module fully integrated into ROHR2.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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