EXPERIMENTAL AND NUMERICAL ASSESSMENT OF SUSTAINABLE BAMBOO CORE SANDWICH PANELS UNDER LOW-VELOCITY IMPACT

Livia A D Oliveira; Maikson Luiz  Passaia Tonatto; Gabriela Luiza Cota Coura; Rodrigo Texeira dos Santos Freire; Tulio Panzera; Fabrizio  Scarpa

doi:10.1016/j.conbuildmat.2021.123437

EXPERIMENTAL AND NUMERICAL ASSESSMENT OF SUSTAINABLE BAMBOO CORE SANDWICH PANELS UNDER LOW-VELOCITY IMPACT

Livia A D Oliveira, Maikson Luiz Passaia Tonatto, Gabriela Luiza Cota Coura, Rodrigo Texeira dos Santos Freire, Tulio Panzera^*, Fabrizio Scarpa

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

This work describes the experimental and numerical behaviour of sandwich panels made of aluminium skins and bamboo core under low-velocity impact test. A statistical design is carried out to evaluate the effect of the bamboo diameter (Ø20 and Ø30 mm) and the adhesive type (epoxy and biopolymer) on the maximum load, energy to maximum load, total deflection and total energy of the panels, which are assessed through graphical and failure analysis. A non-linear finite element (FE) analysis is developed to simulate the low-velocity impact test and to predict the failure mechanisms of the skins, bamboo core and adhesive. The experimental results show that, unlike the adhesive type, the bamboo diameter variation does not significantly affect the impact properties. Sandwich panels made of epoxy adhesive exhibit greater rigidity and lower maximum load than those with biopolymer, resulting in premature core-face debonding. On the other hand, sandwich panels made with biopolymer have a greater capacity for absorbing energy and maintaining structural integrity. The numerical simulation indicates a good correlation with the experimental data for load-displacement impact curves, kinematic energy-time curves, perforation process and failure modes.

Original language	English
Article number	123437
Journal	Construction and Building Materials
Volume	292
Early online date	1 May 2021
DOIs	https://doi.org/10.1016/j.conbuildmat.2021.123437
Publication status	Published - 19 Jul 2021

Bibliographical note

Funding Information:
LAdO and THP would like to thank the Bristol Composites Institute (ACCIS), and the University of Bristol for the logistical support provided during the panel tests. The authors would like to thank the Brazilian Research Agencies, CAPES (PhD scholarship), CNPq (PQ 309885/2019-1) and FAPEMIG (PPM) for the financial support provided.

Funding Information:
LAdO and THP would like to thank the Bristol Composites Institute (ACCIS), and the University of Bristol for the logistical support provided during the panel tests. The authors would like to thank the Brazilian Research Agencies, CAPES (PhD scholarship), CNPq ( PQ 309885/2019-1 ) and FAPEMIG (PPM) for the financial support provided.

Publisher Copyright:
© 2021 Elsevier Ltd

Keywords

sandwich panel
bamboo core
biopolymer
energy absorption
low-velocity impact

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10.1016/j.conbuildmat.2021.123437

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This is the accepted author manuscript (AAM). The final published version (version of record) is available online via Elsevier at 10.1016/j.conbuildmat.2021.123437. Please refer to any applicable terms of use of the publisher.
Accepted author manuscript, 7 MBLicence: CC BY-NC

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title = "EXPERIMENTAL AND NUMERICAL ASSESSMENT OF SUSTAINABLE BAMBOO CORE SANDWICH PANELS UNDER LOW-VELOCITY IMPACT",

abstract = "This work describes the experimental and numerical behaviour of sandwich panels made of aluminium skins and bamboo core under low-velocity impact test. A statistical design is carried out to evaluate the effect of the bamboo diameter ({\O}20 and {\O}30 mm) and the adhesive type (epoxy and biopolymer) on the maximum load, energy to maximum load, total deflection and total energy of the panels, which are assessed through graphical and failure analysis. A non-linear finite element (FE) analysis is developed to simulate the low-velocity impact test and to predict the failure mechanisms of the skins, bamboo core and adhesive. The experimental results show that, unlike the adhesive type, the bamboo diameter variation does not significantly affect the impact properties. Sandwich panels made of epoxy adhesive exhibit greater rigidity and lower maximum load than those with biopolymer, resulting in premature core-face debonding. On the other hand, sandwich panels made with biopolymer have a greater capacity for absorbing energy and maintaining structural integrity. The numerical simulation indicates a good correlation with the experimental data for load-displacement impact curves, kinematic energy-time curves, perforation process and failure modes.",

keywords = "sandwich panel, bamboo core, biopolymer, energy absorption, low-velocity impact",

author = "Oliveira, {Livia A D} and {Passaia Tonatto}, {Maikson Luiz} and {Cota Coura}, {Gabriela Luiza} and {Texeira dos Santos Freire}, Rodrigo and Tulio Panzera and Fabrizio Scarpa",

note = "Funding Information: LAdO and THP would like to thank the Bristol Composites Institute (ACCIS), and the University of Bristol for the logistical support provided during the panel tests. The authors would like to thank the Brazilian Research Agencies, CAPES (PhD scholarship), CNPq (PQ 309885/2019-1) and FAPEMIG (PPM) for the financial support provided. Funding Information: LAdO and THP would like to thank the Bristol Composites Institute (ACCIS), and the University of Bristol for the logistical support provided during the panel tests. The authors would like to thank the Brazilian Research Agencies, CAPES (PhD scholarship), CNPq ( PQ 309885/2019-1 ) and FAPEMIG (PPM) for the financial support provided. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

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doi = "10.1016/j.conbuildmat.2021.123437",

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T1 - EXPERIMENTAL AND NUMERICAL ASSESSMENT OF SUSTAINABLE BAMBOO CORE SANDWICH PANELS UNDER LOW-VELOCITY IMPACT

AU - Oliveira, Livia A D

AU - Passaia Tonatto, Maikson Luiz

AU - Cota Coura, Gabriela Luiza

AU - Texeira dos Santos Freire, Rodrigo

AU - Panzera, Tulio

AU - Scarpa, Fabrizio

N1 - Funding Information: LAdO and THP would like to thank the Bristol Composites Institute (ACCIS), and the University of Bristol for the logistical support provided during the panel tests. The authors would like to thank the Brazilian Research Agencies, CAPES (PhD scholarship), CNPq (PQ 309885/2019-1) and FAPEMIG (PPM) for the financial support provided. Funding Information: LAdO and THP would like to thank the Bristol Composites Institute (ACCIS), and the University of Bristol for the logistical support provided during the panel tests. The authors would like to thank the Brazilian Research Agencies, CAPES (PhD scholarship), CNPq ( PQ 309885/2019-1 ) and FAPEMIG (PPM) for the financial support provided. Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/7/19

Y1 - 2021/7/19

N2 - This work describes the experimental and numerical behaviour of sandwich panels made of aluminium skins and bamboo core under low-velocity impact test. A statistical design is carried out to evaluate the effect of the bamboo diameter (Ø20 and Ø30 mm) and the adhesive type (epoxy and biopolymer) on the maximum load, energy to maximum load, total deflection and total energy of the panels, which are assessed through graphical and failure analysis. A non-linear finite element (FE) analysis is developed to simulate the low-velocity impact test and to predict the failure mechanisms of the skins, bamboo core and adhesive. The experimental results show that, unlike the adhesive type, the bamboo diameter variation does not significantly affect the impact properties. Sandwich panels made of epoxy adhesive exhibit greater rigidity and lower maximum load than those with biopolymer, resulting in premature core-face debonding. On the other hand, sandwich panels made with biopolymer have a greater capacity for absorbing energy and maintaining structural integrity. The numerical simulation indicates a good correlation with the experimental data for load-displacement impact curves, kinematic energy-time curves, perforation process and failure modes.

AB - This work describes the experimental and numerical behaviour of sandwich panels made of aluminium skins and bamboo core under low-velocity impact test. A statistical design is carried out to evaluate the effect of the bamboo diameter (Ø20 and Ø30 mm) and the adhesive type (epoxy and biopolymer) on the maximum load, energy to maximum load, total deflection and total energy of the panels, which are assessed through graphical and failure analysis. A non-linear finite element (FE) analysis is developed to simulate the low-velocity impact test and to predict the failure mechanisms of the skins, bamboo core and adhesive. The experimental results show that, unlike the adhesive type, the bamboo diameter variation does not significantly affect the impact properties. Sandwich panels made of epoxy adhesive exhibit greater rigidity and lower maximum load than those with biopolymer, resulting in premature core-face debonding. On the other hand, sandwich panels made with biopolymer have a greater capacity for absorbing energy and maintaining structural integrity. The numerical simulation indicates a good correlation with the experimental data for load-displacement impact curves, kinematic energy-time curves, perforation process and failure modes.

KW - sandwich panel

KW - bamboo core

KW - biopolymer

KW - energy absorption

KW - low-velocity impact

U2 - 10.1016/j.conbuildmat.2021.123437

DO - 10.1016/j.conbuildmat.2021.123437

M3 - Article (Academic Journal)

SN - 0950-0618

VL - 292

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 123437

ER -

EXPERIMENTAL AND NUMERICAL ASSESSMENT OF SUSTAINABLE BAMBOO CORE SANDWICH PANELS UNDER LOW-VELOCITY IMPACT

Abstract

Bibliographical note

Keywords

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