{"id":13853,"date":"2026-02-17T11:16:35","date_gmt":"2026-02-17T10:16:35","guid":{"rendered":"https:\/\/blog.structuralia.com\/?p=9754"},"modified":"2026-04-06T16:03:53","modified_gmt":"2026-04-06T14:03:53","slug":"momento-de-inercia","status":"publish","type":"post","link":"https:\/\/blog.structuralia.com\/en\/momento-de-inercia","title":{"rendered":"Moment of inertia: definition"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\"><\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#%C2%BFQue_es_la_inercia\" >What is inertia?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#%C2%BFQue_es_el_momento_de_inercia\" >What is moment of inertia?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#Propiedades_del_momento_de_inercia\" >Properties of the Moment of Inertia<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#Calculo_del_momento_de_inercia_ecuaciones\" >Calculating the Moment of Inertia: Equations<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#1_Ecuaciones_generales\" >1. General Equations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#2_Teorema_de_Steiner_ejes_paralelos\" >2. Steiner's Theorem (parallel axes)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#3_Ecuaciones_para_formas_geometricas_comunes_Eje_a_traves_del_centro_de_masas\" >3. Equations for Common Geometric Shapes (Axis Through the Center of Mass)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#Analizar_el_momento_de_inercia\" >Analyze the moment of inertia<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#1_En_movimiento_rotacional_dinamica\" >1) In rotational motion (dynamics)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#2_En_ingenieria_estructural_inercia_de_areas\" >2) In structural engineering (area moment of inertia)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#Interpretacion_tecnica\" >Technical Interpretation<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/blog.structuralia.com\/en\/momento-de-inercia\/#Errores_conceptuales_comunes\" >Common Conceptual Errors<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">The <strong>moment of inertia<\/strong> is the physical quantity that measures the <strong>a body's resistance to a change in its rotational motion<\/strong> relative to an axis of rotation. In mechanical and structural engineering, this property determines how a system responds to an applied torque and how a cross-section resists bending.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is the rotational equivalent of mass in the case of rectilinear motion. While mass quantifies the resistance to linear acceleration, the moment of inertia quantifies the resistance to angular acceleration.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_la_inercia\"><\/span>What is inertia?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>inertia <\/strong>It is the property of bodies to maintain their state of rest or uniform linear motion unless an external force acts upon them. This principle is formalized in Newton's First Law.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the case of the <strong>rectilinear motion<\/strong>:<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n      <math aria-label=\"F equals m times a\">\n        <mi>F<\/mi><mo>=<\/mo><mi>m<\/mi><mi>a<\/mi>\n      <\/math>\n    <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>F<\/strong> is the force (N),<\/li>\n\n\n\n<li><strong>m<\/strong> is the mass (kg),<\/li>\n\n\n\n<li><strong>a<\/strong> is the acceleration (m\u00b7s<sup>\u22122<\/sup>).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In<strong> rotation<\/strong>, the equivalent is:<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n      <math aria-label=\"tau equals I times alpha\">\n        <mi>\u03c4<\/mi><mo>=<\/mo><mi>I<\/mi><mi>\u03b1<\/mi>\n      <\/math>\n    <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u03c4<\/strong> is the torque (N\u00b7m),<\/li>\n\n\n\n<li><strong>I<\/strong> is the moment of inertia (kg\u00b7m<sup>2<\/sup>),<\/li>\n\n\n\n<li><strong>\u03b1<\/strong> is the angular acceleration (rad\u00b7s<sup>\u22122<\/sup>).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\n      The key difference is that the moment of inertia depends not only on mass, but also on its\n      <strong>distribution with respect to the axis of rotation<\/strong>.\n    <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue_es_el_momento_de_inercia\"><\/span>What is moment of inertia?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\n      The moment of inertia is the <strong>sum of the products<\/strong> of each mass element by the\n      <strong>square of the distance<\/strong> to the axis of rotation:\n    <\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n      <math aria-label=\"I equals the sum of my times ri squared\">\n        <mi>I<\/mi><mo>=<\/mo><mo>\u2211<\/mo><mi>m<\/mi><mi>i<\/mi><mi>r<\/mi><mi>i<\/mi><msup><mi><\/mi><mn>2<\/mn><\/msup>\n      <\/math>\n    <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In its entirety:<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n      <math aria-label=\"I equals the integral of r squared over dm\">\n        <mi>I<\/mi><mo>=<\/mo><mo>\u222b<\/mo><msup><mi>r<\/mi><mn>2<\/mn><\/msup><mi> <\/mi><mi>d<\/mi><mi>m<\/mi>\n      <\/math>\n    <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>r<\/strong>&nbsp;is the distance perpendicular to the axis (m),<\/li>\n\n\n\n<li><strong>dm<\/strong>&nbsp;is the differential mass (kg).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The term&nbsp;<strong>square of the distance<\/strong>&nbsp;implies that small variations in the position of the mass produce significant increases in the&nbsp;<strong>angular momentum<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Propiedades_del_momento_de_inercia\"><\/span>Properties of the Moment of Inertia<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>It depends on the axis of rotation<\/strong>: Changing the axis modifies its value.<\/li>\n\n\n\n<li><strong>It's addictive<\/strong>: It can be calculated as the sum of the partial products of several elements.<\/li>\n\n\n\n<li><strong>It depends on the geometry<\/strong>: Shape is just as important as total mass.<\/li>\n\n\n\n<li><strong>It's rock climbing<\/strong>&nbsp;relative to a given axis.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In structures, the equivalent concept is the&nbsp;<strong>area inertia<\/strong>&nbsp;(second moment of area), with units of m<sup>4<\/sup>, used to evaluate flexural stiffness.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><em>You may also be interested in reading: <a href=\"https:\/\/blog.structuralia.com\/en\/calculo-de-estructuras-sismorresistentes\/\" data-type=\"link\" data-id=\"https:\/\/blog.structuralia.com\/calculo-de-estructuras-sismorresistentes\">Structural Design for Earthquake Resistance: The Science Behind Safe Buildings&nbsp;<\/a><\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Calculo_del_momento_de_inercia_ecuaciones\"><\/span>Calculating the Moment of Inertia: Equations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The calculation of the <strong>moment of inertia (I)<\/strong> It is based on equations that vary depending on the type of mass distribution (discrete or continuous) and the object's geometry. Let's take a look at these equations!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Ecuaciones_generales\"><\/span>1. General Equations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/10\/ecuaciones-generales-momento-de-inercia.jpg\" alt=\"\" class=\"wp-image-9755\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Teorema_de_Steiner_ejes_paralelos\"><\/span>2. Steiner's Theorem (parallel axes)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In most cases, we don't rotate objects around their center of mass. For example: when we open a door, the rotation doesn't occur at the center, but at the hinges, which are at one end. This leads us to ask an important question:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cWhat happens to the moment of inertia when the axis of rotation does not pass through the body\u2019s center of mass?\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We find the answer in the <strong>Steiner's Theorem<\/strong>, also known as <strong>parallel axes theorem<\/strong>. Which establishes the following premise:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">If we move the axis of rotation to a position parallel to the axis passing through the center of mass, the new moment of inertia will be greater than the minimum possible (that of the center of mass).<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Mathematically, this can be expressed as:<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n      <math aria-label=\"I equals Ic plus m times d squared\">\n        <mi>I<\/mi><mo>=<\/mo><msub><mi>I<\/mi><mi>c<\/mi><\/msub><mo>+<\/mo><mi>m<\/mi><msup><mi>d<\/mi><mn>2<\/mn><\/msup>\n      <\/math>\n    <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>I<sub>c<\/sub><\/strong> is the angle relative to the centerline,<\/li>\n\n\n\n<li><strong>m<\/strong> is the total mass (kg),<\/li>\n\n\n\n<li><strong>d<\/strong> is the distance between parallel axes (m).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Ecuaciones_para_formas_geometricas_comunes_Eje_a_traves_del_centro_de_masas\"><\/span>3. Equations for Common Geometric Shapes (Axis Through the Center of Mass)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When we study the <strong>moment of inertia<\/strong>, it is important to remember that not all objects are the same. Some have complex shapes or irregular mass distributions, but others (such as cylinders, spheres, or rods) are <strong>rigid, homogeneous bodies<\/strong> y <strong>of regular geometry<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In these cases, the calculation of the <strong>moment of inertia about the center of mass<\/strong> is carried out through <strong>standard formulas<\/strong> that have already been derived using integral calculus and are applied directly based on the shape of the object. Check out these examples!<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2025\/10\/momento-de-inercia.jpg\" alt=\"\" class=\"wp-image-9756\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Analizar_el_momento_de_inercia\"><\/span>Analyze the moment of inertia<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\nAnalyze the <strong>moment of inertia<\/strong> This involves interpreting how its value affects the mechanical behavior of a system. \nThe analysis varies depending on whether it involves <strong>rotational motion<\/strong> or of <strong>structural deflection<\/strong>.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_En_movimiento_rotacional_dinamica\"><\/span>1) In rotational motion (dynamics)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\nIn dynamic systems, the moment of inertia determines the resistance to angular acceleration according to:\n<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n<math aria-label=\"tau equals I times alpha\">\n  <mi>\u03c4<\/mi><mo>=<\/mo><mi>I<\/mi><mi>\u03b1<\/mi>\n<\/math>\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\nSolving:\n<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n<math aria-label=\"alpha equals tau divided by I\">\n  <mi>\u03b1<\/mi><mo>=<\/mo>\n  <mfrac>\n    <mi>\u03c4<\/mi>\n    <mi>I<\/mi>\n  <\/mfrac>\n<\/math>\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\nIf the applied torque is constant:\n<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Greater I \u2192 lower angular acceleration<\/strong><\/li>\n\n\n\n<li><strong>Lower I \u2192 higher angular acceleration<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\nThis means that a body with high rotational inertia changes its angular velocity more slowly.\nFor this reason, flywheels are designed with mass distributed away from the axis of rotation.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_En_ingenieria_estructural_inercia_de_areas\"><\/span>2) In structural engineering (area moment of inertia)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\nIn structural engineering, the analysis focuses on the <strong>second penalty kick<\/strong>, which determines the bending stiffness.\nThe deflection of a beam is inversely proportional to I:\n<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n<math aria-label=\"deformation proportional to 1 over I\">\n  <mi>\u03b4<\/mi><mo>\u221d<\/mo>\n  <mfrac>\n    <mn>1<\/mn>\n    <mi>I<\/mi>\n  <\/mfrac>\n<\/math>\n<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Greater I \u2192 less deformation<\/strong><\/li>\n\n\n\n<li><strong>Lower I \u2192 greater deformation<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\nFor a rectangular cross-section:\n<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:25px\">\n<math aria-label=\"Ix equals b times h cubed divided by 12\">\n  <msub><mi>I<\/mi><mi>x<\/mi><\/msub><mo>=<\/mo>\n  <mfrac>\n    <mrow><mi>b<\/mi><msup><mi>h<\/mi><mn>3<\/mn><\/msup><\/mrow>\n    <mn>12<\/mn>\n  <\/mfrac>\n<\/math>\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\nThe term <strong>h\u00b3<\/strong> Evidence shows that increasing the height significantly increases stiffness.\nFor this reason, structural profiles concentrate material away from the neutral axis to maximize the moment of inertia without proportionally increasing the weight.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Interpretacion_tecnica\"><\/span>Technical Interpretation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Scope<\/th><th>What Determines I<\/th><th>Effect of Increasing I<\/th><\/tr><\/thead><tbody><tr><td>Rotational Dynamics<\/td><td>Reluctance to speed up<\/td><td>Greater angular stability<\/td><\/tr><tr><td>Structural Deflection<\/td><td>Cross-sectional stiffness<\/td><td>Less deformation<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\nIn both cases, the determining factor is not just the mass or the total area, but rather its \n<strong>distribution relative to the axis of rotation or neutral axis<\/strong>.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Errores_conceptuales_comunes\"><\/span>Common Conceptual Errors<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Confusing mass with moment of inertia:<\/strong> Mass measures the amount of matter; momentum also depends on shape.<\/li>\n\n\n\n<li><strong>Forget the distance squared:<\/strong> It is the factor that has the greatest influence on torsional stiffness.<\/li>\n\n\n\n<li><strong>Misusing Steiner's theorem:<\/strong> It applies only between parallel axes.<\/li>\n\n\n\n<li><strong>Ignore units:<\/strong> The result must always be expressed in <strong>kg\u00b7m\u00b2<\/strong>.<\/li>\n\n\n\n<li><strong>Failing to consider the main themes:<\/strong> With irregular shapes, choosing the wrong axis completely alters the results.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">In <strong>conclusion<\/strong>, the moment of inertia is a fundamental measure of the <strong>mass distribution<\/strong> which defines the <strong>rotational response of a body<\/strong>. Understanding and correctly applying these principles are essential for the safe and efficient design of structures and mechanical systems.<\/p>","protected":false},"excerpt":{"rendered":"<p>El momento de inercia es la magnitud f\u00edsica que mide la resistencia de un cuerpo frente a un cambio en su movimiento rotacional respecto a un eje de rotaci\u00f3n. En ingenier\u00eda mec\u00e1nica y estructural, esta propiedad determina c\u00f3mo responde un sistema ante un par aplicado y c\u00f3mo una secci\u00f3n resiste la flexi\u00f3n. Es el equivalente [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":13854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_ayudawp_aiss_exclude":false,"_ayudawp_aiss_summary":"","_ayudawp_aiss_summary_provider":"","_ayudawp_aiss_summary_hash":"","footnotes":""},"categories":[268],"tags":[],"class_list":["post-13853","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ambito-laboral"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Momento de inercia: definici\u00f3n - Blog de Structuralia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/posts\/13853\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Momento de inercia: definici\u00f3n - Blog de Structuralia\" \/>\n<meta property=\"og:description\" content=\"El momento de inercia es la magnitud f\u00edsica que mide la resistencia de un cuerpo frente a un cambio en su movimiento rotacional respecto a un eje de rotaci\u00f3n. En ingenier\u00eda mec\u00e1nica y estructural, esta propiedad determina c\u00f3mo responde un sistema ante un par aplicado y c\u00f3mo una secci\u00f3n resiste la flexi\u00f3n. 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