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What Is Altair SimSolid 2025?

Altair SimSolid 2025 is designed specifically for engineers who need to validate designs quickly without spending hours preparing geometry. Rather than requiring you to simplify CAD models or manually mesh assemblies, SimSolid 2025 analyzes complete designs directly—exactly as they exist in your CAD system. This shift eliminates the traditional bottleneck of geometry preparation and meshing, letting your team answer critical design questions in minutes instead of days.

The 2025 release adds significant capabilities for thermal-structural analysis, enterprise integration through Siemens NX connectivity, and support for superelements with dynamics. For design and engineering teams that need faster validation cycles without sacrificing accuracy, SimSolid 2025 provides a fundamentally different approach to structural simulation.

How Does Mesh-Free Simulation Work?

Direct CAD Geometry Analysis

SimSolid 2025's core technology works directly on your CAD geometry without requiring conversion or simplification. You import a complete assembly—with all the small features, fasteners, and details intact—and the solver handles the analysis immediately. This means no geometry cleanup, no feature removal, and no waiting for mesh generation. Your design stays exactly as modeled while the analysis captures structural behavior across the entire assembly.

Adaptive Solver Technology

The adaptive solver in SimSolid 2025 automatically adjusts solution precision based on the complexity of your design. Rather than forcing you to manually define mesh density or convergence criteria, the solver determines the appropriate level of detail needed to capture critical stress concentrations and failure modes. This removes guesswork from the analysis process and lets engineers focus on design decisions rather than solver configuration.

What Are the Key Capabilities of SimSolid 2025?

Enhanced Multi-Physics Analysis

SimSolid 2025 combines structural analysis with thermal effects in a single study. You can analyze stress distributions resulting from temperature variations across assemblies, capturing realistic behavior where materials expand differently and stiffness changes with temperature. This capability proves essential for applications ranging from automotive engine components to aerospace thermal management systems.

Temperature-Dependent Material Properties

New in SimSolid 2025 is support for temperature-dependent material properties. Rather than assuming material stiffness remains constant across your operating range, SimSolid 2025 updates material behavior based on local temperatures. This produces significantly more accurate predictions for designs that experience temperature gradients or seasonal environmental conditions.

Superelement Support with Dynamics

SimSolid 2025 introduces the ability to import and export superelements including dynamic analysis data. This expands capability for organizations with complex assemblies and makes SimSolid 2025 work effectively within established FEA workflows. Teams can use SimSolid 2025 for rapid design validation while maintaining compatibility with traditional analysis processes.

What Industries Benefit from SimSolid 2025?

Manufacturing and Industrial Equipment

Manufacturers use SimSolid 2025 to validate equipment designs during the engineering phase. Assembly shops analyze multi-component structures—from hydraulic systems to frame assemblies—quickly identifying stress hotspots and design conflicts before production. The ability to iterate rapidly on design alternatives accelerates the path from concept to manufacturing-ready models.

Automotive and Aerospace

Engineering teams in automotive and aerospace sectors evaluate structural performance across multiple design scenarios. SimSolid 2025 handles the complex thermal-structural coupling common in exhaust systems, brake assemblies, and thermal management components. Aerospace applications benefit from superelement support, enabling integration with larger platform-level analysis activities.

Architecture and Consumer Products

Architects validate structural performance of connection details and assemblies without extensive FEA resources. Consumer product companies analyze assembly performance during design reviews, catching potential manufacturing or reliability issues early. The direct CAD workflow fits naturally into existing design processes for both disciplines.

How Does SimSolid 2025 Integrate with Your CAD Workflow?

SimSolid Connect for Siemens NX

SimSolid 2025 introduces direct bidirectional connectivity with Siemens NX. Geometry transfers without file exports, maintaining full associativity between your design model and analysis. Automated feature recognition assigns connections—rivets, fasteners, and rigid bodies—directly from your design intent. This tight integration eliminates repetitive geometry export/import cycles and manual connection setup.

Multi-Platform CAD Support

Beyond Siemens NX integration, SimSolid 2025 accepts assemblies from SOLIDWORKS, Autodesk Inventor, Creo, and other mainstream CAD platforms. Organizations running diverse design tools can analyze assemblies without format conversion concerns. This flexibility supports heterogeneous engineering environments where different teams or divisions use different CAD systems.

What Time Savings Can You Expect?

Elimination of Geometry Preparation

Traditional FEA requires hours of geometry cleanup—removing small features, simplifying fasteners, closing gaps, and preparing models for mesh generation. SimSolid 2025 accepts designs as-created, skipping this entire preparation phase entirely. Design engineers immediately launch analyses on models fresh from the CAD environment.

Automated Connection Setup

SimSolid 2025.1 includes intelligence for automatically recognizing and assigning connections. Rivets along coaxial holes, bolted joints, and rigid body relationships are identified directly from your geometry. For assemblies with hundreds of fasteners and connections, this automation eliminates manual setup work that historically consumed days of analyst time.

Key Workflow Time Improvements:

• Geometry preparation step completely eliminated
• Mesh generation replaced with immediate analysis launch
• Connection setup automated for common fastener patterns
• Design iteration cycles shortened from days to hours
• Multiple design alternatives evaluated simultaneously
• Part updates integrated without study recreation

Frequently Asked Questions

Altair SimSolid 2025 - Professional Structural Analysis Software