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Rate-dependent material properties of adhesively bonded joints - must have or nice to have?

: May, Michael


Kida, K.:
Polymer science and engineering : Selected peer-reviewed full text papers from 3rd International Conference on Composite Material, Polymer Science and Engineering (3rd CMPSE), October 24th and 25th, 2019, Bangkok, Thailand
Durnten-Zurich: TTP, 2020 (Key engineering materials 858)
ISBN: 978-3-0357-1638-2
International Conference on Composite Material Polymer Science and Engineering (CMPSE) <3, 2019, Bangkok>
Conference Paper
Fraunhofer EMI ()
adhesive joints; cohesive zone model; crashworthiness; rate-dependency; simulation

In the context of automotive crash simulation, rate-dependent properties are sought for all materials undergoing deformation. Measuring rate-dependent properties of adhesively bonded joints is a challenging and associated with additional cost. This article assesses the need for having rate-dependent properties of adhesively bonded joints for the example of a typical automotive structure, an adhesively bonded metallic T-joint. Using Finite Element simulation it could be shown that good agreement between experiment and simulation was only achieved if rate-dependent properties were considered for the adhesive.