Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz
The physical and mechanical properties of Grevillea robusta A. Cunn. were determined, testing small clear specimens. The testing material was obtained from two trees collected in the central region of Veracruz state. The mechanical properties were determined in green and dry condition. The material...
| Autori principali: | , , |
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| Natura: | Online |
| Lingua: | spa |
| Pubblicazione: |
Instituto de Ecología, A.C.
2016
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| Accesso online: | https://myb.ojs.inecol.mx/index.php/myb/article/view/1319 |
| _version_ | 1799769287453310976 |
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| author | Zárate Morales, Reyna Paula Ordóñez Candelaria, Víctor Rubén Martínez Castillo, José Luis |
| author_facet | Zárate Morales, Reyna Paula Ordóñez Candelaria, Víctor Rubén Martínez Castillo, José Luis |
| author_sort | Zárate Morales, Reyna Paula |
| collection | MYB |
| description | The physical and mechanical properties of Grevillea robusta A. Cunn. were determined, testing small clear specimens. The testing material was obtained from two trees collected in the central region of Veracruz state. The mechanical properties were determined in green and dry condition. The material for tests in dry condition was obtained from the drying tests. A high ratio between tangential and radial contraction was calculated, which could be construed as an indication of low dimensional stability; however, from these experiments pieces with minimum distortions resulted. The tests carried out were: static bending, compression and shear parallel to grain, compression perpendicular to grain, end hardness and side hardness (radial and tangential directions) and toughness. In this paper the mean values, the standard deviation and the coefficients of variation are reported for all properties mentioned. Taking into account the abundance of multiseriate rays which can be with the naked eye, and estimate of the percentage of area in the tangential section was determined and high values of this percentage were found which might have an influence on the mechanical strength of the of this species. It was found that this wood has a strength from low to medium. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1319 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2016 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-13192022-11-30T00:59:41Z Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz Zárate Morales, Reyna Paula Ordóñez Candelaria, Víctor Rubén Martínez Castillo, José Luis Grevillea robusta physical and mechanical properties small clear specimens shrinkage Veracruz Grevillea robusta propiedades físicas y mecánicas pequeñas probetas contracciones Veracruz The physical and mechanical properties of Grevillea robusta A. Cunn. were determined, testing small clear specimens. The testing material was obtained from two trees collected in the central region of Veracruz state. The mechanical properties were determined in green and dry condition. The material for tests in dry condition was obtained from the drying tests. A high ratio between tangential and radial contraction was calculated, which could be construed as an indication of low dimensional stability; however, from these experiments pieces with minimum distortions resulted. The tests carried out were: static bending, compression and shear parallel to grain, compression perpendicular to grain, end hardness and side hardness (radial and tangential directions) and toughness. In this paper the mean values, the standard deviation and the coefficients of variation are reported for all properties mentioned. Taking into account the abundance of multiseriate rays which can be with the naked eye, and estimate of the percentage of area in the tangential section was determined and high values of this percentage were found which might have an influence on the mechanical strength of the of this species. It was found that this wood has a strength from low to medium. Se determinaron las propiedades físicas y mecánicas de la especie Grevillea robusta A. Cunn. con especímenes colectados en la región central del estado de Veracruz. Las propiedades mecánicas se estimaron en condición “verde” y seca. Se determinó que hay un valor alto de la relación entre la contracción tangencial y la radial, lo que generalmente se interpreta como una baja estabilidad dimensional; sin embargo, del secado del material para pruebas mecánicas en condición seca, se obtuvieron piezas con distorsiones pequeñas. Las propiedades mecánicas que se estudiaron fueron flexión estática, compresión paralela y perpendicular a la fibra, dureza, cortante paralelo a la fibra y tenacidad por impacto. Los resultados que se presentan son los valores promedio de cada propiedad, el número de ensayos realizados para obtenerlos, la desviación estándar y el coeficiente de variación, tanto en condición seca como en condición “verde”. Considerando la presencia abundante de radios multiseriados apreciables a simple vista, se estimó el porcentaje del área de una sección tangencial ocupada por dichos radios, encontrando valores altos de este porcentaje que, posiblemente, influyen en la resistencia mecánica de la madera de esta especie. Se encontró que esta madera tiene una resistencia mecánica de baja a media. Instituto de Ecología, A.C. 2016-09-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/1319 10.21829/myb.2001.711319 Madera y Bosques; Vol. 7 No. 1 (2001): Primavera 2001; 57-69 Madera y Bosques; Vol. 7 Núm. 1 (2001): Primavera 2001; 57-69 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/1319/1489 Derechos de autor 2016 Madera y Bosques |
| spellingShingle | Zárate Morales, Reyna Paula Ordóñez Candelaria, Víctor Rubén Martínez Castillo, José Luis Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz |
| title | Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz |
| title_full | Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz |
| title_fullStr | Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz |
| title_full_unstemmed | Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz |
| title_short | Determinación de algunas propiedades físicas y mecánicas de Grevillea robusta A. Cunn. del estado de Veracruz |
| title_sort | determinación de algunas propiedades físicas y mecánicas de grevillea robusta a. cunn. del estado de veracruz |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/1319 |
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