Optimization of a test bench for testing compliant elements under shear-force-free bending laod

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Abstract

As a contribution to the efficient cyclic testing of textile-reinforced compliant structures, a kinematic test rig for the static and dynamic bending test of composite stripe specimens has been developed [1]. This multifunctional six-membered linkage allows a moment application free of shear force by providing a pure bending load while bending the specimen in one direction up to 90°. During cyclic testing with a frequency of 1 or 2 Hz the progressive damage behaviour meaning the initiation and propagation of fibre breaks with increasing load cycles up to complete structural failure has been monitored using industrial computer tomography [2]. The test results showed considerable differences within the results and therefore led to a need for a modified test rig to reach higher frequencies. Hence, a new concept for a shear-force-free bending test bench has been developed which allows a periodic bending in both directions from 90° up to 90°. This paper intends to make contributions to the efficient cyclic testing of textile-reinforced compliant structures by optimizing this new mechanism structure to minimize the induced shear force.

Details

Original languageEnglish
Title of host publicationMaterials Science Engineering, Symposium B6 - Hybrid Structures
Pages130-136
Number of pages7
Volume2
Publication statusPublished - 2013
Peer-reviewedYes

Publication series

SeriesProcedia Materials Science
Volume2
ISSN2211-8128

Colloquium

TitleMaterials Science Engineering, Symposium B6 - Hybrid Structures
Conference number
Duration25 - 27 September 2012
Location
CityDarmstadt
CountryGermany

External IDs

WOS 000329160700015
ORCID /0000-0003-2834-8933/work/142238349
ORCID /0000-0002-5412-2324/work/142248677

Keywords