![]() Where the material is non-linear elastic or the forces being applied can cause large displacements, a non-linear FEA must be performed. Linear FEA is carried out when a part is made from a linear elastic material, and there is not much deformation caused by the forces being applied to the part. Linear elastic materials are typically linear elastic up to a point, and then start displaying non-linear elastic behaviour. Materials can either be linear elastic (where the relationship between stress and strain in the material is linear – for example aluminium or steel), or non-linear elastic (where the relationship between stress and strain in the material is non-linear – for example, polymers). ![]() Here’s a quick explanation of the different types of analysis that can be utilised: Linear & Non-Linear FEA It’s an iterative process to create concept designs, run FEA scenarios, then develop and optimise the design for maximum performance. We use computer simulation to model load cases throughout all design and development projects. Many of the projects we deliver must be right first time, whilst incorporating challenging mechanisms and structures, plus a variety of materials. However, not all projects have this luxury so must be right first time – a challenge we’re used to seeing. We hope this article has covered the answers to your most important questions regarding FEA.Ĭontact us at or on +44 (0) 2890 271 001.įor more information download our products and services brochure here.When designing a new product, having the ability to make prototypes is ideal as it means issues can be found early in the process. It also allows for less waste of material and time. Increased productivity, and increased revenue – FEA software allows for better quality products in a shorter design cycle. Therefore, each new design can be virtually tested in hours, instead of waiting days or weeks for a hard copy to be tested. ![]() More efficient and less costly design cycle – FEA simulations don’t require design repetitions. By initially simulating the system in FEA software, the designer can model different designs and materials in hours, versus the days or weeks of hard prototyping. Virtual prototyping – FEA simulators help remove multiple repetitions of initial prototyping. By determining how critical factors affect the entire structure and why failures might occur is a huge advantage to a designer. FEA enables an immediate increase in material accuracy when designing a product, showing how all physical stresses may affect the design.Įnhanced design – FEA allows designers to better determine how stresses within one piece will affect the materials in another separate, but connected, piece.īetter insight into critical design parameters – The ability to model the interior, as well as the exterior of a design is one of the most valued benefits of FEA. With this, the designer can model all physical stresses on a part, even those that might be overlooked on initial designs. The use of FEA now requires the designer to create and maintain a ‘recipe’ of all material parameters for those in use. Then, during testing it was found that key restrictions were possibly overlooked. Increased accuracy – Initially, products were sketched, prototypes were developed and manufactured. Moreover, finite element analysis helps predict the behaviour of products affected by many physical effects, including: A computer then adds up all the individual behaviours to predict the behaviour of the actual object. Mathematical equations help predict the behaviour of each element. In addition, FEA outlines whether a product will break, wear out or work the way it was designed.Įlement analysis works by breaking down a real object into many finite elements. In particular, vibration, heat, fluid flow and also other physical effects. ![]() FEA is a computerised method for forecasting how a product reacts to real-world forces. ![]()
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