OptiStruct Software | FEA Solver & Structural Optimization
Advanced FEA and structural optimization for lightweight, high-performance designs.
Structural Optimization
What is Altair OptiStruct?
Advanced structural optimization for lightweight, high-performance engineering design.
Altair OptiStruct is a leading structural analysis and optimization solver used to design efficient, lightweight, and high-performance components. It supports linear and nonlinear analysis, along with advanced optimization methods such as topology, topography, and size optimization. Engineers use OptiStruct to reduce weight, improve durability, and enhance performance across industries like automotive, aerospace, and manufacturing, enabling faster development and more innovative product designs.
Key Features of Altair OptiStruct
Comprehensive structural analysis and optimization in a single, powerful solver.
Complete Structural Analysis in One Solver
Altair OptiStruct provides a unified FEA environment for linear and nonlinear analysis, dynamics, vibration, fatigue, acoustics, and thermal simulations. Engineers can validate real-world structural behavior using a single solver, reducing model duplication and simplifying workflows.
Industry-Leading Structural Optimization
OptiStruct is a pioneer in topology, shape, size, and lattice optimization. It enables engineers to design lightweight, high-performance components while meeting strength, stiffness, and durability requirements across industries, including automotive and aerospace.
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Real-World Multiphysics Simulation
OptiStruct supports advanced multiphysics simulations, including thermal-structural coupling, vibration analysis, and integrated workflows with fluid and electromagnetic interactions. This allows engineers to capture real-world behavior in complex engineering systems.
OptiStruct Capabilities
Advanced FEA, structural optimization, and multiphysics simulation in a single solver.
High-Performance Finite Element Analysis
Altair OptiStruct delivers fast and accurate finite element analysis for linear and nonlinear problems, including static, dynamic, contact, and large-deformation simulations. Its solver efficiency makes it suitable for both early design studies and final validation.
Advanced Structural Optimization
OptiStruct supports topology, shape, size, free-size, and lattice optimization within the same solver. Engineers can automatically generate lightweight, high-performance designs while satisfying stiffness, strength, frequency, and durability requirements.
Multiphysics & Coupled Simulations
Run coupled simulations such as thermal-structural interactions, vibration, and acoustics, with integrated workflows for fluid-structure interaction and electromagnetic-structure analysis.
Durability, Fatigue & NVH Analysis
Built-in tools for fatigue life prediction, vibration analysis, and noise & vibration harshness (NVH) allow engineers to assess long-term performance and comfort early in the design cycle.
Composite & Advanced Material Modeling
OptiStruct provides robust support for composite laminates, orthotropic and nonlinear material behavior, and selected hyperelastic material models, deal for aerospace, automotive, and lightweight structural applications.
Scalable Performance on CPUs & GPUs
Designed for high-performance computing environments, OptiStruct scales efficiently across CPUs and GPUs, enabling faster turnaround times for large models and complex optimization workflows.
OptiStruct Services
Expert Altair OptiStruct Support and Engineering Services
Accelerate optimization workflows and improve simulation accuracy with expert support.
TrueInsight provides specialized support for Altair OptiStruct, helping engineering teams implement structural analysis and optimization workflows efficiently. From onboarding and model setup to advanced optimization strategies and multiphysics simulations, our experts ensure accurate results, reduced development time, and high-performance designs.
Learn More About Altair OptiStruct
Technical insights, tutorials, and real-world optimization applications.
How to Apply a 5-Axis CNC Milling Constraint in OptiStruct
Learn how to define a 5-axis CNC milling constraint in Altair OptiStruct to guide manufacturable designs. This approach helps engineers integrate manufacturing considerations directly into the optimization process.
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Altair OptiStruct: Techniques for Advanced Optimization
Explore advanced optimization techniques in OptiStruct, including topology and parameter optimization, to achieve lightweight, efficient, and high-performance designs across engineering applications.
Explore capability →Permanent Deformation Analysis of a Control Arm
Discover how Altair OptiStruct can be used to analyze permanent deformation in structural components. This example highlights its capabilities in implicit analysis and advanced optimization workflows.
Explore capability →OptiStruct Users in Action
Real-world success stories using Altair OptiStruct for optimization and performance.
Customer Story – L&L Products
L&L Products used Altair OptiStruct to significantly reduce model build time while improving part performance. By leveraging advanced structural optimization, they achieved faster development cycles and more efficient, high-performance designs.
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Customer Story – Skidmore, Owings & Merrill (SOM)
SOM applied OptiStruct to support innovative structural design and meet sustainability goals. Through optimization-driven workflows, they improved material efficiency and enabled more sustainable, high-performance building solutions.
Explore capability →Frequently Asked Questions
OptiStruct combines high-performance finite element analysis with industry-leading structural optimization in a single solver. Unlike many FEA tools that focus only on validation, OptiStruct enables engineers to optimize designs for weight, strength, durability, and performance early in the development process.
Altair OptiStruct is used for finite element analysis (FEA) and structural optimization. It helps engineers assess, optimize, and validate designs for strength, stiffness, durability, vibration, acoustics, thermal behavior, and multiphysics performance.
OptiStruct supports topology, shape, size, free-size, and lattice optimization. These methods enable the creation of lightweight, high-performance designs while meeting structural, dynamic, and durability requirements.
Yes. OptiStruct includes comprehensive nonlinear analysis capabilities such as large deformation, advanced contact, bolt and gasket modeling, and nonlinear material behavior, enabling accurate simulation of real-world operating conditions.
Yes. OptiStruct supports coupled multiphysics simulations including thermomechanical, fluid-structure, electromagnetic-structure interactions, as well as vibration, frequency response, acoustics, and noise, vibration, and harshness (NVH) analysis.
OptiStruct is widely used in industries such as automotive, aerospace, industrial machinery, energy, and electronics, where structural performance, lightweighting, durability, and multiphysics behavior are critical.
Ready to Take the Next Step with OptiStruct?
Start optimizing your designs with advanced simulation and expert support.