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http://hdl.handle.net/1843/60749| Type: | Artigo de Periódico |
| Title: | Influence of specimen dimensions in the determination of strength and modulus of elasticity in static bending of hardwoods |
| Authors: | João Paulo Boff Almeida Edson Fernando Castanheira Rodrigues Fernando Júnior Resende Mascarenhas Anderson Renato Vobornik Wolenski Eduardo Chahud Luiz Antonio Melgaço Nunes Branco Roberto Vasconcelos Pinheiro Francisco Antonio Rocco Lahr André Luis Christoforo |
| Abstract: | In Brazil, standard ABNT NBR 7190 (1997) prescribes the determination of strength (fM) and modulus of elasticity (EM) in static bending from specimens measuring 5 cm × 5 cm × 115 cm. Thus, the relationship between the test span (L) and the specimen height (h) greater than or equal to 21 (L/h ≥ 21) is respected, ensuring that the effect of shear in the calculation of displacements is negligible (Euler Bernoulli Theory). Considering the expressive number of tree species cataloged in the Brazilian Amazon Forest, any procedure that aims to facilitate the realization of experimental tests is highly desirable because it provides the knowledge of unusual species. These wood species may potentially replace woods that have been traditionally used and historically exploited. Using five hardwood species, this research aimed to verify, while maintaining constant L/h ≥ 21 ratios, the influence of specimens dimensions in the determination of fM and EM. For all species studied, the statistical analysis found equivalence in the values of fM and EM determined as a function of the sample sizes. Therefore, respecting the ratio L/h ≥ 21, the size of the specimens does not influence the determination of strength and stiffness in static bending. |
| Subject: | Madeira Estruturas de madeira (construção civil) Propriedades mecanicas |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ENG - DEPARTAMENTO DE ENGENHARIA MATERIAIS E DA CONSTRUÇÃO CIVIL |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | https://doi.org/10.15376/biores.17.3.3906-3911 |
| URI: | http://hdl.handle.net/1843/60749 |
| Issue Date: | 2022 |
| metadata.dc.url.externa: | https://bioresources.cnr.ncsu.edu/resources/influence-of-specimen-dimensions-in-the-determination-of-strength-and-modulus-of-elasticity-in-static-bending-of-hardwoods/ |
| metadata.dc.relation.ispartof: | BioResources |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Influence of specimen dimensions in the determination of strength and modulus of elasticity in static bending of hardwoods.pdf | 238.24 kB | Adobe PDF | View/Open |
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