stress strain in fea

Understanding accurate stress strain equations doesn’t have to be complicated. Engineers from different industries work to improve finite element analysis (FEA) every day. Their goal is to ensure that products on the market are safe, cost-efficient, and quick to sell.

A finite element analysis isn’t just putting CAD models into FEA packages. It’s knowing all of the available software engineers can use. Rather than using linear static stress analysis, engineers are switching to non-linear and it’s making a big difference.

Learn more about how stress, strain, and rigidity define FEA outcomes.

Know The Basics About Stress Strain Equations

Finite element models are discrete representations of the physical part we analyze. It’s created through nodes which connect to form elements. These discrete nodes on the physical part help engineers predict responses from applied loading.

The response is then defined by the nodal degrees of freedom or DOF. For a clear stress analysis, nodes can reach up to six degrees of freedom at each node. When adjacent elements are sharing nodes, the nodes continue across the shared element boundary before loads transfer between the elements.

Understanding the Design

During finite element analysis, engineers determine the exposure to physical phenomena and environmental conditions the part will have. This helps them determine the design objective. They can then decide whether the design will adhere to static or dynamic conditions.

Engineers want to know what happens when the product runs through a motion cycle or if it moves relative to other assembled parts. They hope to simplify the problem through FEA software that can calculate stresses at any given time. This is a successful method if the design doesn’t ensure motion, changes or any impact over time.

Interpreting Results

Engineers determine the accuracy of stress-strain equations through FEA software verification tools. It’ll help them see stress, displacement, as well as qualitative and quantitative verification. If the test is performed on a solid assembly, it’ll be easier for engineers to interpret results.

Most times, if a linear static stress analysis is performed, only single instant contours will be available. Results need to be interpreted by comparing the values to the material’s yield stress. The engineer also must assume that the analyzed one in the linear static stress analysis represents the worst case.

It’s helpful for engineers to have faster, easier tools to visualize and present results. Tools like these better prepare presentations for an engineer’s manager or client.

Finding The Best Services

The need for proper stress-strain equations continues to increase. Engineers are working around the clock to plot deformations of product models for your greater benefit.

When stress levels are OK, deformations can be accepted. But when deformations are rejected, engineers can better determine the quality of the design. These are crucial for optimizing elements, making have a finite element analysis very important!

We offer services that’ll help full-time engineers from project to project. For more information, send us an inquiry!

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