WFRF:(Nika Grigor)
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- Agnelli, FilippoEcole Polytech, FRA (author)
Design and testing of 3D-printed micro-architectured polymer materials exhibiting a negative Poisson’s ratio
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- 2019-11-20
- Springer-Verlag New York,2020
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kau-88392
- https://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-88392URI
- https://doi.org/10.1007/s00161-019-00851-6DOI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- This work proposes the complete design cycle for several auxetic materials where the cycle consists of three steps (i) the design of the micro-architecture, (ii) the manufacturing of the material and (iii) the testing of the material. We use topology optimization via a level-set method and asymptotic homogenization to obtain periodic micro-architectured materials with a prescribed effective elasticity tensor and Poisson’s ratio. The space of admissible micro-architectural shapes that carries orthotropic material symmetry allows to attain shapes with an effective Poisson’s ratio below −1−1. Moreover, the specimens were manufactured using a commercial stereolithography Ember printer and are mechanically tested. The observed displacement and strain fields during tensile testing obtained by digital image correlation match the predictions from the finite element simulations and demonstrate the efficiency of the design cycle.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Maskinteknik Teknisk mekanik hsv//swe
- ENGINEERING AND TECHNOLOGY Mechanical Engineering Applied Mechanics hsv//eng
- NATURVETENSKAP Matematik Annan matematik hsv//swe
- NATURAL SCIENCES Mathematics Other Mathematics hsv//eng
- Matematik
- Mathematics
Added entries (persons, corporate bodies, meetings, titles ...)
- Constantinescu, AndreiEcole Polytech, FRA (author)
- Nika, GrigorWeierstrass Inst Appl Anal & Stochast, DEU(Swepub:kau)grignika (author)
- Ecole Polytech, FRAWeierstrass Inst Appl Anal & Stochast, DEU (creator_code:org_t)
Related titles
- In:Continuum Mechanics and Thermodynamics: Springer-Verlag New York32:2, s. 433-4490935-11751432-0959
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