Exploring Static and Dynamic Analysis in CAE Simulation Using SolidWorks

Finite Element Analysis (FEA) has become an integral tool for engineers seeking precision in understanding stress, strain, and deformation in mechanical parts and structures. This blog, part of the CAE Simulation using SolidWorks series, delves into the concepts of static and dynamic analysis, their applications, and how to perform these simulations using SolidWorks. Whether you’re new to SolidWorks or looking to refine your skills, this guide will walk you through every detail with a hands-on approach. 

What is Structural Analysis? 

Structural analysis in CAE using SolidWorks isn’t limited to civil structures like bridges and buildings. It also applies to mechanical components commonly used in industries. By performing structural analysis, engineers can predict how components behave under various loads. 

Key Concept: In structural analysis, the unknown displacements of a model are first determined. These displacements are then substituted back into governing equations to derive reaction forces and other quantities like stress and strain. 

SolidWorks simplifies this process with its CAE simulation tools, making it a favorite among mechanical engineers and students. 

Static vs. Dynamic Analysis 

The foundation of structural analysis lies in understanding the difference between static and dynamic analysis: 

Static Analysis 

• Assumption: Loads are quasi-static, meaning they increase gradually, and acceleration and velocity can be neglected. 
• Behaviour : Focuses only on the final deformation or stress values after the load is applied. 
• Application: Suitable for scenarios where time-dependent effects are negligible. 
• Example: Bending a cantilever beam and measuring the final stress values. 

Dynamic Analysis 

• Assumption: Considers inertial and damping effects, solving for acceleration and velocity before deriving stress and strain. 
• Behavior: Tracks how stress and deformation evolve over time, making intermediate results reliable. 
• Application: Ideal for analyzing time-dependent loads or events. 
• Example: Monitoring stress changes on a beam over 5 seconds with precise time steps. 

SolidWorks’ CAE simulation tools excel at both static and dynamic analyses, offering CAE engineers the flexibility to choose based on their specific needs. 

Linear and Nonlinear Analysis in SolidWorks 

Materials behave linearly within their elastic region, following Hooke’s Law. Beyond this, they exhibit nonlinear behavior, often leading to failure. SolidWorks provides options for both linear and nonlinear analysis: 

Linear Analysis: Assumes a proportional relationship between stress and strain. 

Nonlinear Analysis: Accounts for complex behaviors like plastic deformation and requires greater computational effort. 

SolidWorks makes switching between these modes seamless, ensuring accurate simulations for even the most demanding projects. 

Hands-On: Performing a Static Analysis on a Plate with a Hole 

Let’s perform a basic static analysis on a plate with a hole, a classic problem in FEA training: 

Create the Geometry: 

• Open SolidWorks and start a new part. 
• Draw a rectangle (50 mm x 50 mm) on the front plane. 
• Add a circle (10 mm diameter) at the center, fully constraining it using smart dimensions. 

Set Up the Simulation: 

• Select Simulation > New Study > Static Analysis. 
• Assign Alloy Steel as the material (Yield Strength: 620 MPa). 
• Apply a fixed geometry constraint to one side. 
• Apply a tensile load of 1000 N on the opposite side. 

Meshing and Running the Simulation: 

• Use default meshing to discretize the model. 
• Run the simulation and analyze the stress results. 
• Results: The maximum stress is well below the yield strength, indicating that the material remains within its elastic limit. 

Nonlinear Analysis: 

• Increase the force by a factor of 10 and re-run the simulation. 
• Observe how the stress surpasses the yield strength, necessitating a switch to nonlinear analysis for realistic results. 
• This exercise, commonly included in the Skill-Lync SolidWorks course, introduces students to the importance of understanding material behavior and simulation accuracy. 

 When to Choose Static or Dynamic Analysis? 

• Static Analysis: Best for understanding final deformation or stress under steady loads. 
• Dynamic Analysis: Essential when intermediate results or time-dependent behavior is critical. 

Skill-Lync’s CAE Training emphasizes when and how to use these analyses, ensuring engineers make informed decisions. 

Specialized Analyses in SolidWorks 

SolidWorks offers specialized modules for various scenarios: 

• Buckling Analysis: Evaluates structural stability under compressive loads. 
• Fatigue Analysis: Studies the effects of cyclic loading on material durability. 
• Thermal Simulation: Analyzes temperature gradients and fluxes. 
• Drop Test: Simulates impact forces during a free fall. 

These modules, covered in the Skill-Lync SolidWorks CAE course, cater to both beginners and advanced users. 

Optimizing Your Simulations 

Efficient meshing and proper analysis type selection are crucial. SolidWorks provides tools like H-Refinement and P-Refinement to improve mesh quality, ensuring accurate results. Additionally, performing a grid dependency test helps verify simulation reliability. 

Skill-Lync’s CAE crash course equips students with these skills, enabling them to solve real-world problems confidently. 

Why Choose Skill-Lync for SolidWorks Training? 

Skill-Lync offers a comprehensive curriculum for SolidWorks simulation: 

• Hands-On Projects: Practical exposure to real-world problems. 
• Expert Guidance: Learn from industry professionals. 
• Certified Courses: Enhance your resume with recognized certifications. 
• Free Resources: Explore introductory topics with Skill-Lync’s Free Certified Course. 

Whether you’re starting with CAE basics or aiming for advanced proficiency, Skill-Lync’s SolidWorks CAE tutorials and projects provide a structured pathway to success. 

Final Thoughts 

Static and dynamic analyses are essential tools in CAE simulation with SolidWorks, each serving unique purposes. By understanding the strengths and applications of these techniques, engineers can achieve precise and reliable results. 

Start your journey today with Skill-Lync’s Full Course in SolidWorks CAE and transform the way you approach engineering simulations. Explore our tutorials, certifications, and hands-on projects to become an expert in SolidWorks simulation! 

This blog is part of our ongoing CAE Simulation using SolidWorks. If you missed the previous posts, check them out here.  

Would you like to have a more interactive experience going through the AutoCAD essentials? 

Skill-Lync has released a FREE comprehensive course covering CAE Simulation using SolidWorks: Beginner to Advanced Tutorial in detail! Check it out here.

If you’re looking to go deeper into CAE Simulations check out Skill-Lync’s CAE certification course.   

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