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Corus has announced Vegter Lite, an enhanced version of its original Vegter material model released in 2006.

Vegter Lite is based on a reduced set of test data requirements, but with the same levels of simulation accuracy.

The result is faster forming simulation solve times, improved usability of the tool and shorter product development time for users.

Released as a module inside ESI’s forming simulation software PAM-Stamp, and as an option of AUTO-Stamp, the Corus Vegter series of data models significantly improves the accuracy of forming simulation used to validate pressing operations of vehicle body components.

With the advent of high-strength steels – particularly the dual-phase steels now being widely used in vehicle body construction – the Corus Vegter data model has brought levels of accuracy unattainable by standard plasticity models.

It gives improved descriptions of both yield locus and strain hardening.

Vegter Lite generates even faster forming strain simulations and supports a right-first-time approach for the production of stamped panels.

As well as helping to reduce product development lead times and costs, this variation of the Vegter simulation model allows customers to ensure a more consistent quality of complex formed body panels at the vehicle development phase, leading to high confidence in subsequent volume production.

Carel ten Horn, Corus Research, Development and Testing, Ijmuiden, Netherlands, said: ‘The Vegter Lite model development has reduced the number of physical test results used to create the data for the model from nine to just four – three of which are conventional tensile tests, and the fourth either a bulge or a stack-compression test.

‘Importantly, not only have we been able to eliminate some of the most costly test work essential for the model to work, but user-friendliness has been improved at the same time.’

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