Structural Mechanics Module - COMSOL® 5.2a Release Highlights For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.6 includes dynamic contact analysis, built-in functionality for modeling cracks, and new methods for analyzing mechanical wear. (2) Load a uniform force in solid mechanics module; (3) The steady state analysis solving, and the deformation of steel plate under the action of force is measured; (4) The steady state analysis results (deformation of the steel plate) are used as the initial condition, then the alternating current is loaded to exciting coil. Large-Strain Plasticity in Layered Shell Interface. PDF Structural Mechanics MODULE Increasing in flow rate beyond 5 mL/min increased the deformation. The Linear Elastic Material in the Layered Shell interface now includes the possibility to model Large-Strain Plasticity.The same set of yield functions and isotropic hardening models as in the Solid Mechanics interface are available.. Which physics should I use? In study 2, use "Initial value of variables solved for" "study 1". Deformation visualization - COMSOL The MEMS Module includes linear elastic and linear viscoelastic material models, but you can supplement it with the Nonlinear Structural Materials Module to also include nonlinear material models. These material models are mainly intended for small to moderate strains. The deformed mesh predicted a lowered pressure drop compared to the original mesh at flow rates . With this option, it is possible to model, for example, torsion of axisymmetric structures in a . Mechanical deformation results in Solid Mechanics and Electromechanics don't fit. Comsol Solid Mechanics. You may need to model both the Navier-Stokes equations for fluid flow as well as the solid mechanics equations for the deformation of a solid body. The new Poroelasticity, Large Deformation, Solid multiphysics interface is used for modeling poroelasticity under finite structural deformations. Despite the manipulation of the Scale factor, the deformation did not appear in either the 2D or 3D model. Stabilized and variational multiscale methods for finite element VI. Browse these structural mechanics features and more below. I am simulating some mechanical deformation of sensors using Electromechanics physics, after that, I use Solid Mechanics to verify the correctness of mechanical deformation results from Electromechanics. The most tricky part is two half solid spheres. It provides Structural Mechanics Module Updates. Browse these structural mechanics features and more below. I'm trying to simulate plastic deformation with COMSOL but i don't get any solutions. For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.5 brings contact modeling to shells and membranes, plasticity, creep, viscoplasticity and viscoelasticity availability for shells, and a physics interface for the mechanical analysis of pipes. The governing equation for this physics is a simple force/stress equation. Structural Mechanics Module - COMSOL Solid mechanics, also known as mechanics of solids, is the branch of continuum mechanics that studies the behavior of solid materials, especially their motion and deformation under the action of forces, temperature changes, phase changes, and other external or internal agents.. The most tricky part is two half solid spheres. It is now possible to add Plasticity to the Hyperelastic Material node in the Layered Shell interface. In acoustics models, which we'll discuss most extensively here, you can visualize the actual shape of the wave. Simulations were performed by coupling fluid flow with structural mechanics using a moving mesh in COMSOL Multiphysics version 4.2a. I am trying to model a capacitive force sensor in COMSOL using solid mechanics and electrostatics physics. 2. Open a 3D model in the structural mechanics module using the basic stationary solver. From menu,choose Solid Mechanics>Displacement>Displacement field (Material)>Displacement field, Evaluatebutton. Solid Mechanics. . Structural Mechanics Module Updates. Analysis of Deformation in Solid Mechanics The analysis of deformation is fundamental to the study of all solid mechanics problems. I should emphasize more strongly that this method can also be used in conjunction with Solid Mechanics. . COMSOL and COMSOL Multiphysics are registered. The deformed mesh predicted a lowered pressure drop compared to the original mesh at flow rates beyond 5 mL/min. Problem Description. . The two governing equations each contain coupling terms that makes the solid motion dependent on the temperature and the heat transfer dependent on the solid deformation. I am able to compress the spring and obtain a capacitance reading with a 10V terminal plate and an air . Learn about these structural mechanics features and more below. As shown in the previous two examples, COMSOL Multiphysics provides appropriate functionalities to conveniently account for them. The Hygroscopic Swelling feature in COMSOL Multiphysics enables you to do exactly that. In study 2, use "Initial value of variables solved for" "study . This particular module solves problems in the fields of structural and solid mechanics, adding special elements such as beams, plates, and shells. Mise à jour du module Structural Mechanics. N.B. The spring ele-ment was modeled as homogeneous, linearly elastic 6061 . Structural Mechanics Module Updates. problems as well. interface in the Structural Mechanics Module to perform a thermomechanical . the Solid Mechanics interface for the glass plate, and the Membrane interface for the circuit layer. Question 1 answer which solves the solid mechanics model only to get plastic deformation, thermal expansion and stress also from 1 to 50 s View How to Simulate additive manufacturing material process in ANSYS or . General question about multiple steps in solid mechanics. This can be enabled by selecting the Include circumferential displacement check box in the Axial Symmetry Approximation section in the physics interface. Doing so, they could estimate the residual stress and deformation in the manufactured part. COMSOL Multiphysics solves Equation 2 using the Solid Mechanics interface. . With the same Linear Elastic Material and Solver, their . . Disable the laminar flow and run the solid mechanics using study 1, then disable solid mechanics and run laminar flow using study 2. Regarding COMSOL simple solid mechanics: Please help me out? . The Structural Mechanics Module, an add-on to the COMSOL Multiphysics ® platform, is an FEA software package tailored for analyzing mechanical behavior of solid structures. 1 and Ref. 2), so the strain normal to the xy-plane equals zero. That is, one could solve for the deformed state of the solid part (which might include wrinkling, stress concentrations, etc… The module provides you with modeling tools and functionality for solid mechanics, dynamics and vibrations, materials modeling, shells, beams, contact, fractures, and more. Learn about these and many other Structural Mechanics updates below. Question :In the model you build and solve an 2D axisymmetric model using the Solid Mechanics interface.The model contains an axisymmetric cylinder with sphere cavity.The radius of cylinder and sphere cavity is 25mm,15mm respectively.The material chooses Linear Elastic Material.Young's modulus is 10MPa.Density . Such a formulation is sometimes called a "Total Lagrangian" formulation. I am trying to simulate the deformation of a tiny (350micro) melted metal sphere by pressing it from two sides by flat plates. Add structural mechanics, moving mesh and laminar flow interfaces. Could you . This model uses the Linearized Navier-Stokes, Frequency Domain interface coupled to the Solid Mechanics interface using the built The mouthguard model that was created in Solidworks was imported to COMSOL and subjected to a 100 Newton force in the y-direction to simulate biting down on the mouthguard. . Video: How to Model Structural Mechanics in COMSOL Multiphysics Solid Mechanics for Structural and Aerospace Engineering (4) Nonlinear Finite Element Methods for Solid Mechanics (4) Modeling of mechanical deformation processes in solids and structures by the finite element method. It is now also possible to define your own material model using the User defined option. Simulations were performed by coupling fluid flow with structural mechanics using a moving mesh in COMSOL Multiphysics version 4.2a. The governing equation for the bedrock step problem describes the deformation state of plane strain, which is the norm for 2D poroelasticity problems ( Ref. The Piezoelectric Devices interface combines COMSOL's Solid Mechanics and Electrostatics modeling capabilities into a fully coupled tool for modeling piezoelectric materials. Hi,everyone, I account for some trouble,the model as follows.I need your help!Bless! In 2D, plane stress, plane strain, and generalized plane strain formulations are available. The time studied was from 0 to 1 second, using 0.05 second intervals (0.01 second relative tolerance. The Linear Elastic Material node is th e default material model. The COMSOL solid mechanics module was used to compute the deformation of the RBC. Increasing in flow rate beyond 5 mL/min increased the deformation. How to add a prescribed displacement in . Electromechanical effects arise due to the interaction between electromagnetic fields and solid, elastic structures or rigid bodies. Posted 11 déc. Axial Symmetry with Twist. COMSOL MODEL [2]. Any multiphysics problem where a solid and fluid are coupled to influence the behavior of each other falls under the class of fluid-structure interaction (FSI). In structural mechanics applications, you might want to show the displacement of a part. The solid objects can experience forces that will lead to deformation or movement. Green-Lagrange strains and Second Piola-Kirchhoff stresses are then used. . By default, COMSOL Multiphysics scales the deformation to 10% . In COMSOL v3.5 the boundary load must be applied with the 'tangent and normal' coordinate system. PDE models of deformations in solids and structures. Parameter Symbol Value Elastic Modulus E 69 GPa Poisson's Ratio ν 0.33 Density ρ 2700 kg/m3 2) COMSOL Multiphysics Model: A 3D solid mechanics model was built, with geometry drawn in SolidWorks (Figure 6) and imported using the COMSOL CAD Import Module. Multiphysics problems are often nonlinear. SOLID MECHANICS The Solid Mechanics interface ( ) defines the quantities and features for stress analysis and general linear and nonlinear solid mechanics. The piezoelectric coupling can be in stress-charge or strain-charge form with fully coupled frequency-sweep, eigenmode, and transient computations. COMSOL family, it provides a library of prewritten ready-to-run models that make it quicker and easier to analyze discipline-specific problems. The Navier-Stokes equations can be solved in various forms for different flow regimes. Choose Solid mechanics and you can find all sorts of options. This tutorial model summarizes the fundamentals to model structural mechanics problems and how to apply them in COMSOL Multiphysics and. Additionally, two 1D plots show the wall deflection and surface settlement. Define the . You can add a deformation to most 2D and 3D plots: annotation, arrow, contour, isosurface, line, slice, streamline, surface, and volume plots. However, adding the Solid Mechanics Physics for some reason makes the external current density "unknown" (orange letters for ec.Jx, ec.Jy and ec.Jz). With this interface, you can model situations where there are significant changes in the geometry of the poroelastic solid and resulting changes in the porosity. deformation. Using the Solid Mechanics interface, the interactions between the soil and the retaining wall are calculated and the results are shown. Specialized for additive manufacturing, the Activation feature in the COMSOL® software was . Stationary (time-invariant) models with nonlinearities may converge very slowly. As the deformation of RBC was the most important phenomenon about which we primarily cared in the simulation, the shift of the whole cell produced by the non-zero total force in the background field was neglected in this simulation. 1.2 3D Setup 1. Disable the laminar flow and run the solid mechanics using study 1, then disable solid mechanics and run laminar flow using study 2. For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.2a brings a new Magnetostriction interface for modeling a wide range of sensors and actuators, a Poroelasticity interface to easily couple solid mechanics and fluid flow equations, as well as functionality to simulate adhesion and decohesion to analyze the behavior of objects . For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.3a brings bolt thread contact modeling, a more general fluid-structure interaction multiphysics coupling, and improved default plots for better visualizations. Often, the purpose is to determine the strength of a structure, such as a bridge, in order to prevent damage or accidents. I tried different options like: Moving Mesh (Ale), Phase field, Deformed geometry, and Transport of Dilute Species + Solid Mechanics to make the deformation caused by corrosion visible. Structural Mechanics Module Updates. The model consists of a nylon spring between 2 silicon capacitor plates that experience a boundary load to change the capacitance. The Solid Mechanics physics interface is used for stress analysis as well as general linear and nonlinear solid mechanics, solving for the displacements. As it mentioned in solution center, if the contact feature in solid mechanics is involved, the "form assembly" should be selected. . Add a Deformation node () to deform the plot according to a vector quantity — for example, the displacement field in structural mechanics. . Here is how i would have solved it: 1. For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.6 includes dynamic contact analysis, built-in functionality for modeling cracks, and new methods for analyzing mechanical wear. This model is licensed under the COMSOL Software License Agreement 5.6. . deformation using a least-squares fit. Structural mechanics, or solid mechanics, is a field of applied mechanics in which you compute deformations, stresses, and strains in solid materials. Learn about these structural mechanics features and more below. A deformation refers to a node that can be added to a plot to deform the visual results according to a chosen vector quantity. This tutorial shows a simple example of how non-linear plastic deformation can be modelled using the solid mechanics physics interface. Available as a subnode for most material models in the structural mechanics interfaces, this feature allows you to analyze the effect of moisture concentrations within the solids, such as resulting deformations and stresses. In the Solid Mechanics interface in COMSOL Multiphysics, the principle of virtual work is always expressed in the undeformed geometry (the "Material frame"). The phase difference between the deformation of two points on the duct is caused by the Coriolis effect and can be used to evaluate the mass flow rate through the system. September 13, 2021 Employer COMSOL. It was a 3D study classified as a Solid Mechanics, time dependent . These interactions may be time invariant, time harmonic, or time varying. A nonlinearity can be introduced into the model either in the governing equation, or by making any of the material properties, loads, or boundary conditions dependent upon the solution. 4. The beam is modeled using both the Solid Mechanics interface and the Beam interface. The Deformed Geometry interface, on the other hand, implies that material is being added and removed from a domain as it translates through space, and is appropriate for models involving the Solid Mechanics interfaces, which themselves compute a deformation of the solid material as defined on the Material frame. Leerdoelen. Both of these used time dependent studies. when I strain a soft and hard material together under a force suppose 50 N and then strain under 0.5 N. the strain value does not . . For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.4 brings response spectrum analysis functionality, homogenization of material data using representative volume elements, and the activation of material. Browse these structural mechanics features and more below. Moreover, the nonlinear phenomena like plasticity, transformation induced plasticity (trip), creep, and large deformations are also considered in the solid mechanics physics setup in COMSOL. The results are compared with each other and with a benchmark solution from NAFEMS. The results consist of two 2D plots: the deformation of the soil and retaining wall, and the plastic deformation. To determine deformation on the blood vessel walls, solid mechanics (under structural mechanics) is used. Upon completion of this course, the student: • is familiar with the trilogy in continuum mechanics of kinematics, dynamics and constitutive equations; • is able to compute strain and stress for simple deformation states using the governing equations of continuum mechanics; • can transform stress and strain . In the Solid Mechanics interface, in 2D axisymmetry, it is now possible to include circumferential deformations. Any multiphysics problem where a solid and fluid are coupled to influence the behavior of each other falls under the class of fluid-structure interaction (FSI). . I am using COMSOL V4.1 and I suppose I need Solid Mechanics for this. Composite Materials Module Updates. For users of the Composite Materials Module, COMSOL Multiphysics ® version 5.6 includes modeling of poroelastic layered shells, a new ply-based modeling approach for complex laminates, and support for damage and nonlinear materials in layered shells. What is the difference between "Rigid Connector" and "Prescribed Displacement" boundary condition in Solid Mechanics Comsol? Large Deformation Beam - Comsol：大变形梁—COMSOL. Learn about these and other Composite Materials Module updates below. The governing partial differential equations (PDEs) and expressions of the model are further discussed on the following sub-sections. For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.4 brings response spectrum analysis functionality, homogenization of material data using representative volume elements, and the activation of material. COMSOL Multiphysics version 4.4 and the Structural Mechanics Module are used to analyze the resultant forces, stresses, and deformations that occur on solid structures that are subjected to external loads. To model the shape change of the material an initial strain is calculated from the relative When modeling such systems, there are a variety of appropriate modeling approaches available. Hi, I want to study the pitting corrosion. Hello Ivar, Thank you for the comments. solid mechanics physics. Q1. From menu,choose Solid Mechanics>Displacement>Displacement field . analysis. This example studies the deflection of a cantilever beam undergoing very large deflections. Structural Mechanics Module Updates. Large Deformation Analysis of a Beam. Temperature field: Solid mechanics equations are usually formulated by tracking a certain volume of material as it translates, rotates, and deforms. In the 'solid mechanics' node choose 'quasi-static' for the 'structural transient behaviour'. CONTENTS| 3 Contents Chapter 1: Introduction About the Structural Mechanics Module 22 Why Structural Mechanics is Important for Modeling . 22 The moving mesh is necessary to incorporate the large deformation that the material undergoes, increasing the accuracy of the temperature calculations and the solid mechanics model. Solid Mechanics. Generally, when a solid object is placed in the path of a fluid, the fluid applies pressure and viscous forces on the boundaries of the structure, leading to its deformation. For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.3a brings bolt thread contact modeling, a more general fluid-structure interaction multiphysics coupling, and improved default plots for better visualizations. In terms of deformation of the mouthguard, the PVC proved to withstand the force better than EVA. For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.2a brings a new Magnetostriction interface for modeling a wide range of sensors and actuators, a Poroelasticity interface to easily couple solid mechanics and fluid flow equations, as well as functionality to simulate adhesion and decohesion to analyze the behavior of . Structural Mechanics Module Updates. Structural Mechanics Module Updates. Now I want to calculate the forces and deformations generated by this magnetic field on the metal sheet. Hi, . Structural Mechanics Module Updates. Generally, when a solid object is placed in the path of a fluid, the fluid applies pressure and viscous forces on the boundaries of the structure, leading to its deformation. Th e elastic material model can For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.2a brings a new Magnetostriction interface for modeling a wide range of sensors and actuators, a Poroelasticity interface to easily couple solid mechanics and fluid flow equations, as well as functionality to simulate adhesion and decohesion to analyze the behavior of objects . 2011, 14:19 UTC−8 Materials, Parameters, Variables, & Functions, Studies & Solvers, Structural Mechanics & Thermal Stresses Version 4.0, Version 4.0a, Version 4.1, Version 4.2, Version 4.2a 9 Replies Structural Mechanics Module Updates. For users of the Structural Mechanics Module, COMSOL Multiphysics ® version 5.2a brings a new Magnetostriction interface for modeling a wide range of sensors and actuators, a Poroelasticity interface to easily couple solid mechanics and fluid flow equations, as well as functionality to simulate adhesion and decohesion to analyze the behavior of objects . PCL scaffold had a Poisson's ratio of 0.3. Posted 31-May-2016, 1:47 a.m. IST Structural Mechanics & Thermal Stresses Version 5.2 4 Replies Figure 8. Then, plot the deviation from that plane. Application ID: 204. Structural Mechanics Module Updates. The family of Nonlinear Elastic Material models, which are already available in the Solid Mechanics interface, have been added to the Membrane interface. Study 1: solve the structural physics alone, assuming no effect the flow have on the . COMSOL NEWS. As it mentioned in solution center, if the contact feature in solid mechanics is involved, the "form assembly" should be selected. Learn about these and many other Structural Mechanics updates below. The team used the . Multiphysics model schematic. In COMSOL (solid mechanics),how can I use Prescribed Velocity on boundary with contact pair, so that the boundaries are deformed during the collision? finalhorizontal displacement value roughly-5.07 ClickReplace Expression upper-rightcorner Expressionsection. COMSOL: example df/dp Calculation EM •Eigen frequency simulation to find the resonant frequency (f 0) Solid Mechanics •Find the deformation under given pressure load (P L) Moving Mesh •Update the mesh after deformation EM •Eigen frequency simulation to find the resonant frequency after deformation (f p) =− . The equations of these two interfaces are described in the . , they could estimate the residual stress and deformation in Solid Mechanics for.... And an air the xy-plane equals zero Mechanics Updates below the Linear Elastic material node is th e default model. Study 1: solve the Structural physics alone, assuming no effect the flow have on.! Check box in the physics interface with the & # x27 ; tangent and &... 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Simulations were performed by coupling fluid flow with Structural Mechanics problems and how to apply them in COMSOL and... How to apply them in COMSOL Multiphysics and Highlights < /a > Structural Mechanics applications, might! Using 0.05 second intervals ( 0.01 second relative tolerance modeled as homogeneous linearly. Will lead to deformation or movement Module using the Solid Mechanics for this physics is simple! Deformation in the Layered Shell interface ; formulation the glass plate, the... Two interfaces are described in the Structural physics alone, assuming no effect the have! Tutorial model summarizes the fundamentals to model, for example, torsion of axisymmetric structures in.! - cn.comsol.com < /a > Structural Mechanics Module Updates as homogeneous, linearly Elastic 6061 either the 2D or model... And obtain a capacitance reading with a benchmark solution from NAFEMS //doc.comsol.com/5.5/doc/com.comsol.help.comsol/comsol_ref_results.28.153.html '' > Why all stresses! For example, torsion of axisymmetric structures in a for the glass plate, and transient computations with Mechanics... Be time invariant, time dependent? parent=structural-mechanics-0182-172 '' > Modeling Fluid-Structure Interaction used in with...