A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Compressive Characteristics of Perforated Re-entrant Auxetic Steel Honeycomb–Mortar Composite
https://orcid.org/https://orcid.org/0000-0003-3432-1366
https://orcid.org/https://orcid.org/0000-0003-0812-2320
https://orcid.org/https://orcid.org/0000-0002-8317-166X
https://orcid.org/https://orcid.org/0000-0001-9506-1591
https://orcid.org/https://orcid.org/0000-0002-7109-5743
https://orcid.org/https://orcid.org/0000-0003-2687-6353
The possibility of achieving auxetic behaviour in conventional materials is currently attracting significant research interests in the form of auxetically enhanced cementitious composites and, especially, in re-entrant honeycomb structures. Most studies on the behaviour of re-entrant steel honeycomb auxetic reinforcement for concrete focus on achieving uniplanar auxetic behaviour perpendicular to the direction of loading. This study focuses on investigating multi-planar auxetic behaviour throughout the composite. The auxetic behaviour was achieved by perforating the steel sheets before making the re-entrant honeycomb structures. The re-entrant honeycomb was fabricated by folding mild steel strips 70 mm wide into a re-entrant profile and welding the strips onto one another. Three types of perforations were investigated, representing three categories of samples: circular perforation, orthogonal elliptic perforations and orthogonal peanut perforations. The perforated samples were compared to the non-perforated re-entrant honeycomb (control) through compression strength tests of the composites. Direct tension tests were also carried out on each steel strip in order to understand their respective stress–strain behaviour. The study demonstrates that perforating the re-entrant honeycomb walls could be a simple method for achieving multi-planar auxetic behaviour in re-entrant steel honeycomb-reinforced cementitious composites.
Compressive Characteristics of Perforated Re-entrant Auxetic Steel Honeycomb–Mortar Composite
https://orcid.org/https://orcid.org/0000-0003-3432-1366
https://orcid.org/https://orcid.org/0000-0003-0812-2320
https://orcid.org/https://orcid.org/0000-0002-8317-166X
https://orcid.org/https://orcid.org/0000-0001-9506-1591
https://orcid.org/https://orcid.org/0000-0002-7109-5743
https://orcid.org/https://orcid.org/0000-0003-2687-6353
The possibility of achieving auxetic behaviour in conventional materials is currently attracting significant research interests in the form of auxetically enhanced cementitious composites and, especially, in re-entrant honeycomb structures. Most studies on the behaviour of re-entrant steel honeycomb auxetic reinforcement for concrete focus on achieving uniplanar auxetic behaviour perpendicular to the direction of loading. This study focuses on investigating multi-planar auxetic behaviour throughout the composite. The auxetic behaviour was achieved by perforating the steel sheets before making the re-entrant honeycomb structures. The re-entrant honeycomb was fabricated by folding mild steel strips 70 mm wide into a re-entrant profile and welding the strips onto one another. Three types of perforations were investigated, representing three categories of samples: circular perforation, orthogonal elliptic perforations and orthogonal peanut perforations. The perforated samples were compared to the non-perforated re-entrant honeycomb (control) through compression strength tests of the composites. Direct tension tests were also carried out on each steel strip in order to understand their respective stress–strain behaviour. The study demonstrates that perforating the re-entrant honeycomb walls could be a simple method for achieving multi-planar auxetic behaviour in re-entrant steel honeycomb-reinforced cementitious composites.
Compressive Characteristics of Perforated Re-entrant Auxetic Steel Honeycomb–Mortar Composite
https://orcid.org/https://orcid.org/0000-0003-3432-1366
https://orcid.org/https://orcid.org/0000-0003-0812-2320
https://orcid.org/https://orcid.org/0000-0002-8317-166X
https://orcid.org/https://orcid.org/0000-0001-9506-1591
https://orcid.org/https://orcid.org/0000-0002-7109-5743
https://orcid.org/https://orcid.org/0000-0003-2687-6353
The possibility of achieving auxetic behaviour in conventional materials is currently attracting significant research interests in the form of auxetically enhanced cementitious composites and, especially, in re-entrant honeycomb structures. Most studies on the behaviour of re-entrant steel honeycomb auxetic reinforcement for concrete focus on achieving uniplanar auxetic behaviour perpendicular to the direction of loading. This study focuses on investigating multi-planar auxetic behaviour throughout the composite. The auxetic behaviour was achieved by perforating the steel sheets before making the re-entrant honeycomb structures. The re-entrant honeycomb was fabricated by folding mild steel strips 70 mm wide into a re-entrant profile and welding the strips onto one another. Three types of perforations were investigated, representing three categories of samples: circular perforation, orthogonal elliptic perforations and orthogonal peanut perforations. The perforated samples were compared to the non-perforated re-entrant honeycomb (control) through compression strength tests of the composites. Direct tension tests were also carried out on each steel strip in order to understand their respective stress–strain behaviour. The study demonstrates that perforating the re-entrant honeycomb walls could be a simple method for achieving multi-planar auxetic behaviour in re-entrant steel honeycomb-reinforced cementitious composites.
Compressive Characteristics of Perforated Re-entrant Auxetic Steel Honeycomb–Mortar Composite
Lecture Notes in Civil Engineering
Kioumarsi, Mahdi (editor) / Shafei, Behrouz (editor) / Momoh, Emmanuel Owoichoechi (author) / Hajsadeghi, Mohammad (author) / Jayasinghe, Amila (author) / Vinai, Raffaele (author) / Kripakaran, Prakash (author) / Orr, John (author) / Evans, Ken E. (author)
The International Conference on Net-Zero Civil Infrastructures: Innovations in Materials, Structures, and Management Practices (NTZR) ; 2024 ; Oslo, Norway
The 1st International Conference on Net-Zero Built Environment ; Chapter: 21 ; 245-257
2025-01-09
13 pages
Article/Chapter (Book)
Electronic Resource
English
In-plane elasticity of a multi re-entrant auxetic honeycomb
| British Library Online Contents | 2017
In-plane elasticity of a multi re-entrant auxetic honeycomb
| British Library Online Contents | 2017