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Approaches to Reduce the Complexity to Model the Mechanical Behaviour of Adhesive Joints under Dynamic Loads

Sikora, Sebastian P. and Brodbeck, Marcel (2016) Approaches to Reduce the Complexity to Model the Mechanical Behaviour of Adhesive Joints under Dynamic Loads. In: Proceedings of EUROADH 2016, pp. 44-48. Eleventh European adhesion conference (EUROADH 2016) and thirteenth international triennial conference on adhesion (Adhesion '16), 21.-23. Sep. 2016, Glasgow, Schottland, GB.

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Abstract

In automotive engineering, epoxy as well as polyurethane adhesive bonds have to be modeled in structural simulations. Current German research projects concerning adhesive joints undertake enormous test efforts to describe their mechanical behaviour - resulting from complex testing procedures and a large quantity of recommended testing series. Additionally, a significant scatter in characteristics, especially from fracture mechanics, becomes evident. In most of these current studies, one single epoxy adhesive is studied. On this basis similar, often identical failure behaviour is used for a wide variety of epoxy adhesives in industry, as characterizations of other adhesive joints are not affordable. Complementing approaches are examined to reduce the testing effort to provide applicable methods for industrial usage for a big variety of adhesive bonds. First, simplified specimen geometries and testing setups are examined. Secondly, through investigating the influence of varying strain rate on material parameters, findings for a variety of adhesives are aimed at. Thirdly, justified by big scatter an engineering approach for the choice of material Parameters is discussed for the conservative design of products.

Item URL in elib:https://elib.dlr.de/106465/
Document Type:Conference or Workshop Item (Speech)
Title:Approaches to Reduce the Complexity to Model the Mechanical Behaviour of Adhesive Joints under Dynamic Loads
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sikora, Sebastian P.sebastian.sikora (at) dlr.deUNSPECIFIED
Brodbeck, Marcelmarcel.brodbeck (at) dlr.deUNSPECIFIED
Date:September 2016
Journal or Publication Title:Proceedings of EUROADH 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 44-48
Editors:
EditorsEmail
UNSPECIFIEDIOM3
Status:Published
Keywords:adhesive bond, mechanical behaviour, simulation, material parameters, cohesive elements, epoxy, polyurethane
Event Title:Eleventh European adhesion conference (EUROADH 2016) and thirteenth international triennial conference on adhesion (Adhesion '16)
Event Location:Glasgow, Schottland, GB
Event Type:international Conference
Event Dates:21.-23. Sep. 2016
Organizer:IOM Communications Ltd
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC Fahrzeugstruktur (old)
Location: Stuttgart
Institutes and Institutions:Institute of Vehicle Concepts > Lightweight and Hybrid Design Methods
Institute of Structures and Design > Structural Integrity
Deposited By: Sikora, Sebastian
Deposited On:12 Oct 2016 12:58
Last Modified:12 Oct 2016 12:58

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