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Overview
OptiStruct is a proven, modern structural solver with comprehensive, accurate and scalable solutions for linear and nonlinear analyses across statics and dynamics, vibrations, acoustics, fatigue, heat transfer, and multiphysics disciplines.
Tutorials
Discover OptiStruct functionality with interactive tutorials.
User Guide
This manual provides detailed information regarding the features, functionality, and simulation methods available in OptiStruct.
Reference Guide
This manual provides a detailed list and usage information regarding input entries, output entries, and parameters available in OptiStruct.
Example Guide
The OptiStruct Example Guide is a collection of solved examples for various solution sequences and optimization types and provides you with examples of the real-world applications and capabilities of OptiStruct.
Verification Problems
This manual presents solved verification models including NAFEMS problems.
- NAFEMS Linear Elastic
- NAFEMS Thermo-elastic
- NAFEMS Heat Transfer
- NAFEMS Nonlinear Static Analysis
- NAFEMS Dynamic Response Analysis
- NAFEMS Random Response Analysis
- NAFEMS Normal Modes Analysis
- NAFEMS Composites
  - OS-V: 0500 Laminated Strip
    Test No. R0031/1 OptiStruct examines the bending stress at E, Interlaminar shear stress at D and the z-deflection at E for linear static analysis.
  - OS-V: 0510 Wrapped Thick Cylinder
    Test No: R0031/2 OptiStruct examines the hoop stress in the inner and outer cylinder at different radius for linear static analysis.
  - OS-V: 0520 Sandwich Shell
    Test No: R0031/3 OptiStruct examines the z deflection at C, Normal XX stress at C, Normal YY stress at C and Shear stress at E for linear static analysis.
  - OS-V: 0530 Composite Shell Bending
    This problem discusses the composite shells two- or three-layer plate subjected to a sinusoidal distributed load, as described by Pagano (1969).
  - OS-V: 0531 Laminated Shell Strength Analysis Mechanical Load 1
    This problem analyzes the strength of laminated composite shells when subjected to a uniform longitudinal load per unit length.
  - OS-V: 0532 Laminated Shell Strength Analysis Mechanical Load 2
    This problem analyzes the strength of laminated composite shells when subjected to a more general combination of membrane and bending load.
  - OS-V: 0533 Laminated Shell Strength Analysis Mechanical Load 3
    This problem demonstrates when the loads applied in OS-V: 0532 are factored by 1.1491, a Hill failure index (FI) and a reserve factor (RF) of unity for ply 1 are obtained.
  - OS-V: 0534 Laminated Shell Strength Analysis Thermal Load 1
    This problem analyzes the strength of laminated composite shells when subjected to a uniform constant temperature.
- Response Spectrum Analysis
- Elements
- Materials
- Fatigue Analysis
- Rotor Dynamics
- Frequency Response Analysis
- Explicit Dynamic Analysis
- Aeroelastic Analysis
Frequently Asked Questions
This section provides quick responses to typical and frequently asked questions regarding OptiStruct.

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NAFEMS Composites