Bioinspired cementitious-polymer composite for increased energy absorption

Preliminary results are presented on the energy absorbing characteristics of a cementitious-polymer architecture bioinspired by the organic-inorganic composite structure of nacre. The proposed bioinspired architecture consists of an open cell, platelet-shaped 3D-printed thermoplastic lattice filled...

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Autores principales:	Painter T. Trevor, Schwab Emily, MacCrate Nicole, Brand Alexander S., Jacques Eric
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/b2d614a57c764963a2962021b444c1a1
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spelling	oai:doaj.org-article:b2d614a57c764963a2962021b444c1a12021-12-02T17:13:46ZBioinspired cementitious-polymer composite for increased energy absorption2261-236X10.1051/matecconf/202134901012https://doaj.org/article/b2d614a57c764963a2962021b444c1a12021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/18/matecconf_iceaf2021_01012.pdfhttps://doaj.org/toc/2261-236XPreliminary results are presented on the energy absorbing characteristics of a cementitious-polymer architecture bioinspired by the organic-inorganic composite structure of nacre. The proposed bioinspired architecture consists of an open cell, platelet-shaped 3D-printed thermoplastic lattice filled with high performance cementitious paste. The hypothesis is that, similar to nacre, the platelet arrangement and differences in mechanical properties of the thermoplastic lattice and cementitious platelets would result in increased energy absorption. Initial laboratory scale investigations were performed using notched beam samples subjected to static three-point bending. Stereo-digital image correlation was used to track global strain displacement field and Hillerborg’s method was used to estimate the total fracture energy. The results indicate that this “brick-and-mortar” hierarchy can increase the energy absorbing capacity of the composite by upwards of 2490% compared with the benchmark cementitious specimen. The load-deformation behaviour and total fracture energy of the bioinspired composite were found to be influenced by the platelet arrangement and size and the lattice thickness.Painter T. TrevorSchwab EmilyMacCrate NicoleBrand Alexander S.Jacques EricEDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 349, p 01012 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Painter T. Trevor Schwab Emily MacCrate Nicole Brand Alexander S. Jacques Eric Bioinspired cementitious-polymer composite for increased energy absorption
description	Preliminary results are presented on the energy absorbing characteristics of a cementitious-polymer architecture bioinspired by the organic-inorganic composite structure of nacre. The proposed bioinspired architecture consists of an open cell, platelet-shaped 3D-printed thermoplastic lattice filled with high performance cementitious paste. The hypothesis is that, similar to nacre, the platelet arrangement and differences in mechanical properties of the thermoplastic lattice and cementitious platelets would result in increased energy absorption. Initial laboratory scale investigations were performed using notched beam samples subjected to static three-point bending. Stereo-digital image correlation was used to track global strain displacement field and Hillerborg’s method was used to estimate the total fracture energy. The results indicate that this “brick-and-mortar” hierarchy can increase the energy absorbing capacity of the composite by upwards of 2490% compared with the benchmark cementitious specimen. The load-deformation behaviour and total fracture energy of the bioinspired composite were found to be influenced by the platelet arrangement and size and the lattice thickness.
format	article
author	Painter T. Trevor Schwab Emily MacCrate Nicole Brand Alexander S. Jacques Eric
author_facet	Painter T. Trevor Schwab Emily MacCrate Nicole Brand Alexander S. Jacques Eric
author_sort	Painter T. Trevor
title	Bioinspired cementitious-polymer composite for increased energy absorption
title_short	Bioinspired cementitious-polymer composite for increased energy absorption
title_full	Bioinspired cementitious-polymer composite for increased energy absorption
title_fullStr	Bioinspired cementitious-polymer composite for increased energy absorption
title_full_unstemmed	Bioinspired cementitious-polymer composite for increased energy absorption
title_sort	bioinspired cementitious-polymer composite for increased energy absorption
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/b2d614a57c764963a2962021b444c1a1
work_keys_str_mv	AT painterttrevor bioinspiredcementitiouspolymercompositeforincreasedenergyabsorption AT schwabemily bioinspiredcementitiouspolymercompositeforincreasedenergyabsorption AT maccratenicole bioinspiredcementitiouspolymercompositeforincreasedenergyabsorption AT brandalexanders bioinspiredcementitiouspolymercompositeforincreasedenergyabsorption AT jacqueseric bioinspiredcementitiouspolymercompositeforincreasedenergyabsorption
_version_	1718381338993623040

Bioinspired cementitious-polymer composite for increased energy absorption

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