Structural Mechanics
With structural analysis, you can predict how components behave under loading, vibration, and other physical effects. This helps you design robust mechanical components by validating designs through simulation and reducing the need for physical testing. For details about linear elasticity equations for plane stress, plane strain, and 3-D problems, see Linear Elasticity Equations.
You can perform linear static analysis, transient analysis, modal analysis, and frequency response analysis. The solver returns one of the results objects containing the basic solution values, such as displacement and velocity, at mesh nodes. After solving the problem, you can interpolate returned results to arbitrary spatial locations instead of mesh nodes and also evaluate other solution values, such as stresses, strains, and reaction forces.
Functions
| filterByIndex | Access transient results for specified time steps (Since R2023b) | 
| evaluateStress | Evaluate stress for dynamic structural analysis problem | 
| evaluateStrain | Evaluate strain for dynamic structural analysis problem | 
| evaluateVonMisesStress | Evaluate von Mises stress for dynamic structural analysis problem | 
| evaluateReaction | Evaluate reaction forces on boundary | 
| evaluatePrincipalStress | Evaluate principal stress at nodal locations | 
| evaluatePrincipalStrain | Evaluate principal strain at nodal locations | 
| interpolateDisplacement | Interpolate displacement at arbitrary spatial locations | 
| interpolateVelocity | Interpolate velocity at arbitrary spatial locations for all time or frequency steps for dynamic structural problem | 
| interpolateAcceleration | Interpolate acceleration at arbitrary spatial locations for all time or frequency steps for dynamic structural problem | 
| interpolateStress | Interpolate stress at arbitrary spatial locations | 
| interpolateStrain | Interpolate strain at arbitrary spatial locations | 
| interpolateVonMisesStress | Interpolate von Mises stress at arbitrary spatial locations | 
Objects
| StaticStructuralResults | Static structural solution and derived quantities | 
| TransientStructuralResults | Transient structural solution and derived quantities | 
| ModalStructuralResults | Modal structural solution | 
| FrequencyStructuralResults | Frequency response structural solution and derived quantities | 
Topics
- Deflection Analysis of BracketAnalyze a bracket under an applied load and determine the maximal deflection by using the unified workflow. 
- Structural Dynamics of Tuning ForkPerform modal and transient analysis of a tuning fork. 
- Stress Concentration in Plate with Circular HolePerform a 2-D plane-stress elasticity analysis. 
- Dynamics of Damped Cantilever BeamInclude damping in the transient analysis of a simple cantilever beam. 
- Modal Superposition Method for Structural Dynamics ProblemUse modal analysis results to compute the transient response of a thin 3-D plate under a harmonic load at the center. 
- Thermal Deflection of Bimetallic BeamSolve a coupled thermo-elasticity problem. 
- Vibration of Square PlateCalculate the vibration modes and frequencies of a 3-D simply supported, square, elastic plate. 
- Reduced-Order Modeling Technique for Beam with Point LoadEliminate degrees of freedom that are not on the boundaries of interest by using the Craig-Bampton ROM technique. 
- Modal and Frequency Response Analysis for Single Part of Kinova Gen3 Robotic ArmAnalyze shoulder link of Kinova® Gen3 Ultra lightweight robot arm for deformations under applied pressure. 
- Reduced-Order Modeling Technique for System-Level Simulation of Aircraft Wing SparRun system-level simulations by using the Descriptor State-Space block to implement a reduced-order model of the I-beam in an aircraft wing spar. 


