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Article

Micromechanical Characterisation of Ni/PU Hybrid Foams

Applied Mechanics, Saarland University, D-66123 Saarbrücken, Germany
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Materials 2020, 13(17), 3746; https://doi.org/10.3390/ma13173746
Received: 30 June 2020 / Revised: 19 August 2020 / Accepted: 21 August 2020 / Published: 24 August 2020
(This article belongs to the Special Issue Micromechanics: Experiment, Modeling and Theory)
The computer-aided design of individual parts and the desire for weight reduction and material savings require further development of new hybrid materials. Ni/PU hybrid foams as a new hybrid material offer great potential for the production of components that are lightweight and yet can absorb large amounts of energy. The development of this structured material is at its beginning and mechanical characterisation on all scales is necessary. Experimental investigations on individual struts must be carried out on the micro scale to understand the structure-properties-relationship. Inspite of the challenges raising due to the complex geometry of the struts, tensile tests, three-point bending tests and micro sections are presented in this work. Due to the stiff Ni coating on the outer diameter of the struts, the resistance against bending is around five times as high as against tensile loading. The correlation between the behaviour of the struts and the macroscopic material behaviour validates the planned use of the foams as energy absorbers. View Full-Text
Keywords: micromechanical testing; experimental mechanics; digital image correlation; open-cell foams; hyrid foams; microtensile; microbending micromechanical testing; experimental mechanics; digital image correlation; open-cell foams; hyrid foams; microtensile; microbending
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MDPI and ACS Style

Reis, M.; König, K.; Diebels, S.; Jung, A. Micromechanical Characterisation of Ni/PU Hybrid Foams. Materials 2020, 13, 3746. https://doi.org/10.3390/ma13173746

AMA Style

Reis M, König K, Diebels S, Jung A. Micromechanical Characterisation of Ni/PU Hybrid Foams. Materials. 2020; 13(17):3746. https://doi.org/10.3390/ma13173746

Chicago/Turabian Style

Reis, Martin, Kristian König, Stefan Diebels, and Anne Jung. 2020. "Micromechanical Characterisation of Ni/PU Hybrid Foams" Materials 13, no. 17: 3746. https://doi.org/10.3390/ma13173746

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