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Adaptive Delamination Modelling with Isogeometric analysis REpresentation (ADMIRE)

Reference number
Coordinator CHALMERS TEKNISKA HÖGSKOLA AKTIEBOLAG - Industri- och materialvetenskap
Funding from Vinnova SEK 800 000
Project duration October 2018 - October 2019
Status Completed
Venture The strategic innovation programme SIP LIGHTer

Important results from the project

There is a great need for a computationally efficient model for predicting delamination growth in composite laminates as existing industrial methods are too resource intensive. Therefore, in the current feasibility study, a recently proposed adaptive shell model, based on so-called isogeometric analysis, has been developed to handle the initiation and growth of any number of cracks through the thickness in single or double curved structures. This in a much more computationally efficient way compared to traditional methods based on high-resolution FEA.

Expected long term effects

The proposed shell model has been further developed and verified to the level that it is now possible to implement it in commercial simulation software that is normally built for finite element simulations. This has also been facilitated by the development of the ANSA pre-processor (taking place in the project) where ANSA now has support to export the necessary geometry information enable industrial implementation of the shell model in a finite element software. A journal article has been published, and two international conference presentations have been given.

Approach and implementation

The main focus has been on the development of the shell model, as well as its verification, which has taken place in close discussion between the project partners. A total of 4 project meetings have been held to follow the work. In addition, the following activities have taken place: Collaboration meeting between Chalmers, BETA, TU Eindhoven and BMW to discuss future collaborations in isogeometric analysis, industrialisation workshop at GKN where industrial implementation was discussed; industrialisation workshop with Siemens product development team in Europe to discuss the same

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 20 September 2018

Reference number 2018-02842

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