| dc.contributor | | |
| dc.creator | Bustos, Yolian Yosed | |
| dc.date | 2018-09-13T01:13:02Z | |
| dc.date | 2018-09-13T01:13:02Z | |
| dc.date | 2018 | |
| dc.date.accessioned | 2023-08-28T13:30:43Z | |
| dc.date.available | 2023-08-28T13:30:43Z | |
| dc.identifier | Bustos, Yolian Yosed. Roucheria monsalveae A.H. Gentry : Descripci?n anat?mica, propiedades f?sico-mec?nicas y experiencia en el empleo de un m?todo no destructivo. Ibague : Universidad del Tolima, 2018 | |
| dc.identifier | https://repository.ut.edu.co/handle/001/2364 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8439073 | |
| dc.description | 71 p. Recurso Electr?nico | |
| dc.description | Esta investigaci?n, llevada a cabo en la Universidad del Tolima, describi? por primera vez las caracter?sticas anat?micas y las propiedades f?sico-mec?nicas de la madera de la especie Roucheria monsalveae A.H. Gentry, y compar? estad?sticamente dos m?todos que permiten determinar el m?dulo de elasticidad de este material (destructivo y no destructivo). Para dicho estudio se emple? la lista de caracter?sticas anat?micas microsc?picas de la IAWA (1989), las normas de caracterizaci?n f?sico-mec?nica NTC 3377, DIN 68364, DIN EN 392 y ASTMD-143-94, y el manual del TreeSonic.
Se encontraron caracter?sticas anat?micas que son diagn?sticas de la especie, tal como el par?nquima paratraqueal escaso. Por otra parte, las propiedades f?sicas indicaron que es una madera pesada y con estabilidad dimensional desfavorable, influyendo en su comportamiento ante los esfuerzos mec?nicos: baja resistencia en compresi?n paralela y cizallamiento, y media a muy alta resistencia en compresi?n perpendicular, flexi?n y dureza, sugiriendo su empleo bajo cubierta (vigas y columnas) y bajo esfuerzos m?nimos, ya que tiende a sufrir agrietamientos, deformaciones y rajaduras principalmente en los extremos. Adem?s, se encontr? una diferencia del 40% entre los valores del m?dulo de elasticidad hallados por los dos m?todos, siendo m?s alto el no destructivo, lo cual concuerda con lo expuesto por otros autores. A pesar de que el m?todo destructivo tuvo mayor precisi?n, el m?todo no destructivo demostr? ser muy ?til en la caracterizaci?n mec?nica de la madera.
Palabras claves: caracterizaci?n, m?dulo de elasticidad, madera. | |
| dc.description | This research, carried out at the University of Tolima, described for the first time the anatomical characteristics and physical-mechanical properties of the wood of the species Roucheria monsalveae A.H. Gentry, and statistically compared two methods that allow to determine the modulus of elasticity of this material (destructive and non-destructive). For this study, the list of microscopic anatomical characteristics of the IAWA (1989), the physical-mechanical characterization standards NTC 3377, DIN 68364, DIN EN 392 and ASTMD-143-94, and the TreeSonic manual were used.
Anatomical features that are diagnostic of the species were found, such as the scarce paratracheal parenchyma. On the other hand, the physical properties indicated that it is a heavy wood with unfavorable dimensional stability, influencing its behavior in the face of mechanical stresses: low resistance in parallel compression and shearing, and medium to very high resistance in perpendicular compression, bending and hardness, suggesting its use under cover (beams and columns) and under minimum efforts, since it tends to suffer cracks, deformations and cracks mainly at the ends. In addition, a difference of 40% was found between the values of the modulus of elasticity found by the two methods, the non-destructive being higher, which agrees with what was stated by other authors. Although the destructive method was more accurate, the non-destructive method proved to be very useful in the mechanical characterization of wood.
Keywords: characterization, modulus of elasticity, wood. | |
| dc.format | application/pdf | |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Ibague : Universidad del Tolima, 2018 | |
| dc.publisher | (CO COL 170) | |
| dc.rights | Atribuci?n??NoComercial-?CompartirIgual 2.5 Colombia (CC BY-?NC-?SA 2-?5 CO) | |
| dc.rights | info:eu-repo/semantics/restrictedAccess | |
| dc.rights | http://www.creativecommons.org/licenses by-? nc/2.5/co/ | |
| dc.subject | madera | |
| dc.subject | Roucheria monsalveae A.H. Gentry | |
| dc.title | Roucheria monsalveae A.H. Gentry : Descripci?n anat?mica, propiedades f?sico-mec?nicas y experiencia en el empleo de un m?todo no destructivo | |
| dc.type | Trabajo de grado - Pregrado | |
| dc.type | Text | |
| dc.type | info:eu-repo/semantics/bachelorThesis | |
| dc.type | info:eu-repo/semantics/submittedVersion | |
| dc.coverage | (Ibagu? -? Tolima -? Colombia) | |
| dc.coverage | 2018-09-12 | |
| dc.coverage | (Mundo, Suram?rica, Colombia, Tolima) [1023837] | |
