Experimental Study of Bending Behaviour of Reinforcements
By E. Bilbao, Damien Soulat, G. Hivet, A. Gasser. 2010
175 citations recorded by the source corpus.
In composite reinforcement shaping, textile preform undergo biaxial tensile deformation, in plane shear deformation, transverse compaction and out-of-plane bending deformations. Bending deformations have been neglected in some simulation codes up to now, but taking into account them would give more accurate simulations of forming especially for stiff and thick textiles. Bending behaviour is specific because the reinforcements are structural parts and out of plane properties cannot be directly deduced from in-plane properties, like for continuous material. Because the standard tests are not adapted for stiff reinforcements with non linear behaviour a new flexometer using optical measurements has been developed to test such reinforcements. This new device enables to carry out a set of cantilever tests with different histories of load. A series of tests has been performed to validate the test method and to show the capacities of the new flexometer to identify non linear non elastic behaviour.
Subfields: Civil and Structural Engineering, Mechanics of Materials, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/14e9ae45de4d6058b92e54baf685beae97894bf2
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In Civil and Structural Engineering
In Mechanics of Materials
In Polymers and Plastics
Citations in the corpus
- The bias-extension test for the analysis of in-plane shear properties of textile composite reinforcements and prepregs: a review (2017, methodology): “It is directly measured by a cantilever bending test [95, 96].”
- Simulation of wrinkling during textile composite reinforcement forming. Influence of tensile, in-plane shear and bending stiffnesses (2011, methodology): “The mechanical tests include biaxial tests for tensile stiffness [26-29], picture frame and bias-extension tests for in-plane shear stiffness [13-18, 30-36] and bending tests [37-39].”
- Analysis of thermoplastic prepreg bending stiffness during manufacturing and of its influence on wrinkling simulations (2014, methodology): “Several models have been proposed in the last five decades derived from the results measured by the cantilever test and the Kawabata bending test [39, 42-46].”