We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Energy Absorption Enhancement by Unit Cell Angle Grading for Sandwich Panels with Auxetic Core.
- Authors
MOCIAN, OANA ALEXANDRA; CONSTANTINESCU, DAN MIHAI; BACIU, FLORIN; INDRES, ANDREI
- Abstract
Architectured structures, particularly auxetic materials, have demonstrated encouraging applications in energy absorption as they facilitate the customization of their structural response. Specific geometries of unit cells can thus be tailored for particular needs due to recent progress in additive manufacturing techniques. This paper experimentally studies how the grading of the cell unit angle of an auxetic core in a sandwich panel affects its energy absorbing capability and structural response. 3D printed sandwich panels with uniform and graded auxetic cellular core were tested under quasistatic compression. The results show that sandwich panels with graded core exhibit much better energy absorption capabilities with higher plateau stress and densification strain. This indicates that, by appropriately controlling its geometry, auxetic structures can show further potential as core in sandwich panels for energy absorption applications.
- Subjects
ENERGY absorption films; SANDWICH construction (Materials); AUXETIC materials; GEOMETRY; THREE-dimensional printing
- Publication
Materiale Plastice, 2021, Issue 4, p94
- ISSN
0025-5289
- Publication type
Article
- DOI
10.37358/MP.21.4.5535