登录查看更多内容

What are the best ways to validate FEA simulations for optimization in Structural Engineering?

由人工智能和领英社区提供技术支持

Finite element analysis (FEA) is a powerful tool for structural engineering, allowing you to model complex structures and optimize their performance under various loads and constraints. However, FEA simulations are not perfect and can be affected by errors, uncertainties, and assumptions. Therefore, it is essential to validate your FEA simulations to ensure that they are accurate, reliable, and realistic. In this article, we will discuss some of the best ways to validate FEA simulations for optimization in structural engineering.

此文章中的业界达人

由社区从 12 条内容中精选。了解更多

Arunpreya K

Finite Element Analysis (Structural Simulation), University of Windsor

1 个答复
PRABU RAJA

Lead Engineer Bridges | CEng(I) | ICE Carbon Champion

1 Define your objectives and criteria

Before you start your FEA simulation, you need to define your objectives and criteria for optimization. What are you trying to optimize? Is it the weight, the strength, the stiffness, the durability, or the cost of your structure? What are the constraints and boundary conditions that you need to consider? How will you measure the success of your optimization? By defining your objectives and criteria, you will have a clear vision of what you want to achieve and how you will evaluate your results.

添加您的观点

PRABU RAJA

Lead Engineer Bridges | CEng(I) | ICE Carbon Champion
举报内容
One way of validating the FEA model is by studying the deflected shape for each applied load case and comparing the deflection magnitude with a simple 2D model.

已翻译

赞
Rahul R

| Actively seeking a research opportunities | | Additive Manufacturing | Digital Fabrication | Generative Design | Finite Element Analysis | Sustainability |
举报内容
By validating FEA simulations in structural engineering involve various methods. Using Grasshopper 3D with generative design in conjunction with SolidWorks can offer powerful validation techniques and comparing simulated results with physical tests verifies the accuracy of FEA models. Conducting experiments on scaled models or prototypes helps validate simulations. Apart from that adjusting mesh density and element types in FEA models helps determine the convergence of results. Comparing solutions obtained with varying mesh refinements aids in validating accuracy. Furthermore by assessing Sensitivity Analysis how changes in input parameters affect the output helps in understanding the simulation's behavior.

已翻译

赞
Juan Carlos T.

Senior Stress Engineer + FX Options Trader
举报内容
Applying a smart and in-depth check list. SPC resultants, deformation, non duplicate nodes, free edges, natural frequency modes, mesh quality ....etc

已翻译

赞

加载更多内容

2 Choose an appropriate FEA software and model

The next step is to choose an appropriate FEA software and model for your optimization problem. There are many FEA software available, each with different features, capabilities, and limitations. You need to select a software that can handle the complexity and size of your structure, the type and number of loads and constraints, the material properties and nonlinearities, and the optimization methods and algorithms. You also need to create a model that represents your structure as accurately as possible, while avoiding unnecessary details and simplifications that can affect the accuracy and efficiency of your simulation.

添加您的观点

Omar El-hoseiny,PRMG

Senior Consultant @ Protiviti | Capital Projects Consultancy
举报内容
You must use a proper analysis too , mostly a software and define tools with all the needed material definitions,meshing methodology and size , boundary style , analysis points , and also p-delta models That suits your structure in loads , size and provides sufficient details to use in design stage

已翻译

赞

加载更多内容

3 Perform sensitivity and uncertainty analysis

One of the challenges of FEA simulations is that they are sensitive to the input parameters and assumptions that you make. For example, the material properties, the mesh size and quality, the boundary conditions, and the load cases can all have a significant impact on your results. Therefore, it is important to perform sensitivity and uncertainty analysis to identify and quantify the sources of variability and error in your simulation. Sensitivity analysis can help you determine how your results change with respect to different input parameters and assumptions. Uncertainty analysis can help you estimate the range and probability of your results given the uncertainties in your input parameters and assumptions.

添加您的观点

Arunpreya K

Finite Element Analysis (Structural Simulation), University of Windsor
举报内容
Material properties are one of the critical input parameters to be carefully handled to get reliable FEA results especially for the nonlinear and durability analysis. Secondly, mesh size would play major role in influencing the results. Therefore, it is always recommended to perform sensitivity study to reduce the errors caused due to the input parameters.

已翻译

赞
Dr. Ahn J.

Aerospace Engineer with 25+ years of experience in a broad range of aerospace structural analysis and design (Jet Engine, Commercial Aircraft, Unmanned System, Military Aircraft Industry).
举报内容
Linear optimization, model should satisfy all linear static model validation criteria. Be mindful about loads, frequency, stability constraints before "optimizing too much", avoid all lattice type optimization results.

已翻译

赞
Omar El-hoseiny,PRMG

Senior Consultant @ Protiviti | Capital Projects Consultancy
举报内容
You will always have to check for discontinued deformations , and strain actions to check for bad meshing or insuffient boundary conditions Your will always have to use softwares that can animate the view of deformations to check that the mode of deformation confirms and is in accordance with the assumed deformation modes , check for magnitude of deformation and straining actions and always refere to experts with good judgement to check the reason of the results to check for bad input or any errors Always check the analysis report to check for convergence and related issues

已翻译

赞

加载更多内容

4 Compare with experimental data or analytical solutions

Another way to validate your FEA simulations is to compare them with experimental data or analytical solutions. Experimental data can be obtained from physical tests or measurements on your structure or a similar one. Analytical solutions can be derived from mathematical equations or formulas that describe the behavior of your structure or a simplified version of it. By comparing your FEA results with experimental data or analytical solutions, you can check the accuracy and validity of your simulation and identify any discrepancies or errors that need to be corrected.

添加您的观点

Omar El-hoseiny,PRMG

Senior Consultant @ Protiviti | Capital Projects Consultancy
举报内容
Always validate with Manuel calculations in accordance with your code of practice , but be aware of that the results won't be identical to alot or reasons that we may dicsuee later Just check for the over all look , magnitude, deformation , and end result of design analysis

已翻译

赞

5 Review and refine your optimization results

The final step is to review and refine your optimization results. You need to analyze your results and see if they meet your objectives and criteria. You also need to verify that your results are feasible and realistic, and that they do not violate any physical or practical constraints. If your results are not satisfactory or optimal, you may need to adjust your input parameters, assumptions, or optimization methods and repeat your simulation. You may also need to perform further validation tests or experiments to confirm your results and ensure their reliability.

添加您的观点

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

添加您的观点

加载更多内容

Structural Engineering

+ 关注

给文章评分

我们借助人工智能创建了此文章。您认为这篇文章怎么样？

很棒不太好

举报此文章

查看全部

What are the best ways to validate FEA simulations for optimization in Structural Engineering?

1

2

3

4

5

6

1 Define your objectives and criteria

2 Choose an appropriate FEA software and model

3 Perform sensitivity and uncertainty analysis

4 Compare with experimental data or analytical solutions

5 Review and refine your optimization results

6 Here’s what else to consider

Structural Engineering

给文章评分

感谢您的反馈

更多Structural Engineering相关文章

更多相关阅读内容

What are the best ways to validate FEA simulations for optimization in Structural Engineering?

1

2

3

4

5

6

1 Define your objectives and criteria

2 Choose an appropriate FEA software and model

3 Perform sensitivity and uncertainty analysis

4 Compare with experimental data or analytical solutions

5 Review and refine your optimization results

6 Here’s what else to consider

Structural Engineering

给文章评分

感谢您的反馈

查看其他技能