Adhesive Joining for Crashworthiness -Material Data and Explicit FE-methods (original) (raw)

2008

Abstract

Today, crash simulations replace crash testing in the product development phase in the automotive industry. High quality simulations enable shorter product development time and higher competitiveness. However, increasing requirements regarding emissions and crashworthiness are demanding optimised material choice in the parts constituting the car body structure. Lightweight materials are becoming frequently used. Joining dissimilar materials is difficult using common joining techniques like spot welding. To this end, adhesive joining is currently gaining popularity not only due to the ability to join dissimilar materials, joint integrity and structural stiffness both increase by the use of adhesive joining. Moreover, the number of spot welds may be reduced in hybrid joints. In this thesis, adhesive joints are studied with respect to crashworthiness of automotive structures. The main task for the adhesive is not to dissipate the impact energy, but to keep the joint integrity so that t...

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