Basics of FEM calculations
FEM, or Finite Element Method, is an established tool in engineering for understanding and predicting the behaviour of materials and structures under load. At Hefmec, we are dedicated to providing our customers with the best possible design and calculation services, and in this guide we share our expertise on the basics of FEM calculation.
The method is based on breaking down a complex problem into smaller, more manageable parts called elements. These elements form a network that describes the object under investigation. The calculation can be used to determine stresses, displacements and other mechanical quantities, for example. This information is critical in product development to ensure product strength and durability.
The first step in the FEM calculation is to create a model. At this stage, it is important to understand what the critical areas of the object under investigation are and how to model them as accurately as possible. After modelling, the material properties and loads that affect the object are determined. The calculation itself can then be performed and the results analysed.
Modelling and network creation
Modelling is at the heart of FEM calculations. This is where a digital copy of the object under study is created and broken down into smaller parts, or elements. The density of the mesh and the type of elements directly affect the accuracy of the calculation. It is important to find a balance between the level of detail of the mesh and the computation time.
Hefmec experts are experienced in modelling complex structures and ensuring that the network design supports the computational goals. We use the latest software and methodologies to provide our clients with reliable and accurate results. For more information on our modelling services, see Hefmec’s Machine and Equipment Design: Efficiency for Product Development.
Determination of material properties and loads
Once the model is ready, it’s time to define the material properties. This means, for example, taking into account the elasticity, plasticity and fracture toughness of the material. For loads, it is important to understand how and in which direction the forces act on the object under investigation.
At Hefmec, we have a deep understanding of the behaviour of different materials and can help our customers to define the right parameters for the calculation. This ensures that the calculation results are as close as possible to the actual conditions.
Performing the calculation and analysing the results
Performing the calculation requires specialised software capable of handling large amounts of data and complex calculations. The results obtained after the calculation are usually presented in graphical form, making them easier to interpret.
At Hefmec, we carefully analyse the results and ensure that they meet your needs. Based on the results, design decisions or product modifications can be made. For more information on our calculation services, please see our Strength Calculation as a Service – A fast and reliable solution.
Benefits and applications of FEM calculations
The benefits of FEM calculations are manifold. It allows products and structures to be designed and tested virtually, saving time and money compared to physical prototypes. In addition, FEM helps to identify potential problems at the design stage, which improves product quality and safety.
Applications cover a wide range of industries, including mechanical engineering, aerospace, automotive and construction. Hefmec’s expertise extends to complex projects in these sectors and we are proud to offer our customers comprehensive solutions to their challenges.
We hope that this guide has given you a comprehensive understanding of FEM and its role in modern design and product development. If you have any questions or need help with your project, please feel free to contact Hefmec’s experts. We are here to help you achieve your goals.
