Finite element calculations
Using advanced software such as ABAQUS, SP performs finite element and traditional strength calculations as an alternative or complement to its experimental results. Our comprehensive range of test facilities, supported by in-depth knowledge and experience, means that we are well placed to verify the results of our finite element calculations by experimental testing. This combination of own access to experimental testing facilities and close links to industry and universities is unique. We also conduct ongoing research and development in this sector in order to extend and increase our understanding.
An important advantage of FE calculations is that, once the FE model has been verified, it is relatively easy to perform a sensitivity analysis to the effect of varying parameters. What will happen, for example, if we alter the thickness of the material, use a different material or modify the design? With only experimental facilities available, finding the answers to such questions can be both time-consuming and demanding in terms of resources. In fact, depending on the design changes that might be made, it might not even be possible to distinguish the results of the changes. A better strategy is therefore to use FE calculations, which will deliver a better understanding of how the design responds to various changes, and from which the results are always clear.
A good example of the synergy between testing
and calculation is shown above. A tennis-ball hitting
a concrete wall with a given velocity. A sequence from a high-speed video is compared with FE calculations.
Examples of types of calculations:
- Structural analysis
- Failure analysis
- Material modelling
- Breaking (scaffolding)
- Dynamic and static analysis
- Rapid processes
- Linear and non-liner calculations