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How to debug an External Material

Solution Number: 1281 Applies to: COMSOL Multiphysics, Structural Mechanics Module Versions: All versions

I have a implemented an external material for use with Structural Mechanics, but my model is not solving. External materials are coded in C, and then compiled into a shared library that COMSOL Multiphysics uses at ...

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Learning Center Resources

Learn how to use the COMSOL Multiphysics® software for modeling devices, designs, and processes. Access the Learning Center courses and articles below for modeling guidelines, step-by-step demonstrations, and exercise files.

Courses

Getting Started with COMSOL Multiphysics®

How to Navigate the COMSOL Multiphysics® User Interface

Introduction to Defining Multiphysics Models

Introduction to Electro-Thermal-Mechanical Modeling

Modeling Electromagnetic Coils

Modeling Nonequilibrium Plasma

Modeling Pressure Acoustics

Modeling Resistive and Capacitive Devices

Modeling with Partial Differential Equations in COMSOL Multiphysics

Using Swept Meshes for Model Geometries

Articles

AC/DC Module Functionality as of Version 6.0

Applying Translations, Scaling, Reflection, and Rotation via the Deformed Geometry and Moving Mesh Interfaces

Building Simulation Applications with LiveLink™ for SOLIDWORKS®

CFD Modeling Capabilities in COMSOL Multiphysics® Version 5.6

Computing Space and Time Integrals

Copying and Reusing Boundary Mode Analysis Results

Coupling Physics Between Model Components for Multiphysics Models

Electro-Thermal-Mechanical Workflow and CAD Import

Evaluating Results and Introducing Nonlinearities in a Current-Driven Model

Examples of the General Extrusion Operator

Examples of the General Projection Operator

Examples of the withsol Operator

Geometry Concepts and Nomenclature in COMSOL Multiphysics®

Geometry and Mesh Setup for Modeling Regions of Infinite Extent

Handling Complex-Valued Numbers and Problems in the Frequency Domain

How to Estimate the Number of Degrees of Freedom in a Model

How to Install COMSOL Multiphysics®

How to Install the COMSOL License Manager

How to Optimize Energy Performance of Buildings

How to Reduce the Size of Your Model File

How to Select Geometry

How to Synchronize Geometry Selections from SOLIDWORKS® to COMSOL Multiphysics®

How to Synchronize Parameters Between SOLIDWORKS® and COMSOL Multiphysics®

Identifying and Selecting Geometric Entities by Index Number

Importing Topological Data, Meshes, and Images

Improving Convergence of Nonlinear Stationary Models

Integrating Along Streamlines and Extracting Particle Statistics

Introduction to Heat Transfer in Thin Layers

Introduction to LiveLink™ for MATLAB®

Introduction to Modeling Acoustic Metamaterials

Introduction to Modeling Acoustic–Structure Interaction

Introduction to Modeling Loudspeakers

Introduction to Modeling Periodic Structures

Introduction to Modeling Plasma Using the Plasma Module

Introduction to Modeling Porous Media Flow

Introduction to Modeling Small Acoustic Devices

Introduction to Parameter Estimation Studies in COMSOL Multiphysics®

Introduction to Shape Optimization

Introduction to Simulating Nondestructive Testing Methods

Introduction to Simulating Semiconductor Devices

Introduction to Vacuum System Modeling

Introduction to the Acoustics Module

Introduction to the Battery Design Module

Introduction to the Chemical Reaction Engineering Module

Introduction to the Composite Materials Module

Introduction to the Corrosion Module

Introduction to the Fuel Cell & Electrolyzer Module

Introduction to the Model Manager

Introduction to the Rotordynamics Module

Manually Setting Up the Geometric Multigrid Solver

Manually Setting the Scaling of Variables

Mesh Refinement, CAD Import, and Simulation Apps

Meshing and Solving Pressure Acoustics Models

Modeling Antennas in COMSOL Multiphysics®

Modeling Biosensors

Modeling Heat Transfer with COMSOL Multiphysics® Version 5.6

Modeling Inductively Coupled Plasma and Microwave Plasma

Modeling Joule Heating in the Time Domain for Resistive and Capacitive Systems

Modeling Manufacturing Processes

Modeling Nonlinear Materials

Modeling Optical Waveguides

Modeling Optoelectronic Devices

Modeling Piezoelectric Devices

Modeling Step Transitions

Modeling TEM and Quasi-TEM Transmission Lines

Modeling Thermomechanics

New Functionality in the Chemical Reaction Engineering Module Version 5.6

Optimization of Power Electromagnetics

Performing a Mesh Refinement Study and Using Selections and Variables

RF and Microwave Modeling Capabilities in COMSOL Multiphysics® Version 5.6

Ray Optics Modeling Capabilities in COMSOL Multiphysics® Version 5.6

Reducing the Amount of Solution Data Stored in a Model

Repairing and Improving Imported Meshes from 3D Scans

Setting Up and Solving Electromagnetic Heating Problems with High-Frequency Loads

Simulating Heat Transfer in Layered Materials

Simulating Large Models with COMSOL Multiphysics® Solvers

Simulating Metamaterials with COMSOL Multiphysics®

Simulating Radiation in Semitransparent Media

Solving Transient Models That Have Inconsistent Initial Values

The Basics of Modeling Heat Transfer

The Basics of Parameter Estimation

The Basics of Ray Optics

Two-Phase Flow Modeling Guidelines

Understanding and Changing the Element Order

Understanding the EEDF and Boltzmann Equation, Two-Term Approximation

Using LiveLink™ for Simulink®

Using LiveLink™ for Simulink®: for Lumped Battery Modeling

Using LiveLink™ for SOLIDWORKS® to Create Geometry in COMSOL Multiphysics®

Using Symmetry to Reduce Model Size

Viewing and Accessing the Equations and Variables for Physics Feature Nodes

COMSOL® Installation Companion