Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites

Plastic lumber and thermoplastic composites are sold as alternatives to wood products. However, many technical standards and scientific studies state that the two materials cannot be considered to have the same structural behaviour and strength. Moreover, there are many compositions of thermoplastic...

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Principais autores:	Dias, Bernardo Zandomenico, Alvarez, Cristina Engel de
Formato:	Online
Idioma:	por
Publicado em:	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2017
Acesso em linha:	https://seer.ufrgs.br/ambienteconstruido/article/view/61344
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id	ojs-article-61344
record_format	ojs
spelling	ojs-article-613442017-01-20T17:02:23Z Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites Dias, Bernardo Zandomenico Alvarez, Cristina Engel de Plastic lumber and thermoplastic composites are sold as alternatives to wood products. However, many technical standards and scientific studies state that the two materials cannot be considered to have the same structural behaviour and strength. Moreover, there are many compositions of thermoplastic-based products and plenty of wood species. How different are their mechanical properties? This study compares the modulus of elasticity and the flexural, compressive, tensile and shear strengths of such materials, as well as the materials’ specific mechanical properties. It analyses the properties of wood from the coniferae and dicotyledon species and those of commercialized and experimental thermoplastic-based product formulations. The data were collected from books, scientific papers and manufacturers’ websites and technical data sheets, and subsequently compiled and presented in Ashby plots and bar graphs. The high values of the compressive strength and specific compressive and tensile strengths perpendicular to the grain (width direction) shown by the experimental thermoplastic composites compared to wood reveal their great potential for use in compressed elements and in functions where components are compressed or tensioned perpendicularly to the grain. However, the low specific flexural modulus and high density of thermoplastic materials limit their usage in certain civil engineering and building applications. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2017-01-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/61344 Ambiente Construído; v. 17, n. 2 (2017); 201-219 Ambiente Construído; v. 17, n. 2 (2017); 201-219 Ambiente Construído; v. 17, n. 2 (2017); 201-219 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/61344/40203 Direitos autorais 2017 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution	Universidade Federal do Rio Grande do Sul
collection	OJS
language	por
format	Online
author	Dias, Bernardo Zandomenico Alvarez, Cristina Engel de
spellingShingle	Dias, Bernardo Zandomenico Alvarez, Cristina Engel de Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites
author_facet	Dias, Bernardo Zandomenico Alvarez, Cristina Engel de
author_sort	Dias, Bernardo Zandomenico
title	Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites
title_short	Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites
title_full	Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites
title_fullStr	Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites
title_full_unstemmed	Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites
title_sort	mechanical properties: wood lumber versus plastic lumber and thermoplastic composites
description	Plastic lumber and thermoplastic composites are sold as alternatives to wood products. However, many technical standards and scientific studies state that the two materials cannot be considered to have the same structural behaviour and strength. Moreover, there are many compositions of thermoplastic-based products and plenty of wood species. How different are their mechanical properties? This study compares the modulus of elasticity and the flexural, compressive, tensile and shear strengths of such materials, as well as the materials’ specific mechanical properties. It analyses the properties of wood from the coniferae and dicotyledon species and those of commercialized and experimental thermoplastic-based product formulations. The data were collected from books, scientific papers and manufacturers’ websites and technical data sheets, and subsequently compiled and presented in Ashby plots and bar graphs. The high values of the compressive strength and specific compressive and tensile strengths perpendicular to the grain (width direction) shown by the experimental thermoplastic composites compared to wood reveal their great potential for use in compressed elements and in functions where components are compressed or tensioned perpendicularly to the grain. However, the low specific flexural modulus and high density of thermoplastic materials limit their usage in certain civil engineering and building applications.
publisher	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate	2017
url	https://seer.ufrgs.br/ambienteconstruido/article/view/61344
work_keys_str_mv	AT diasbernardozandomenico mechanicalpropertieswoodlumberversusplasticlumberandthermoplasticcomposites AT alvarezcristinaengelde mechanicalpropertieswoodlumberversusplasticlumberandthermoplasticcomposites
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Mechanical properties: wood lumber versus plastic lumber and thermoplastic composites

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