Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in Iran
Abstract: This paper aims to introduce a relationship between the dynamic modulus of elasticity in healthy standing trees of Paulownia fortune (planted in Iran) and the static modulus of elasticity in sawn wood. For this reason, a stress-wave non-destructive testing technique was carried out in long...
Guardado en:
| Autores principales: | , |
|---|---|
| Lenguaje: | English |
| Publicado: |
Universidad del Bío-Bío
2019
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000100035 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:scielo:S0718-221X2019000100035 |
|---|---|
| record_format |
dspace |
| spelling |
oai:scielo:S0718-221X20190001000352019-06-04Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in IranMadhoushi,MehrabBoskabadi,Zinat Modulus of elasticity non-destructive testing Paulownia standing trees stress-wave. Abstract: This paper aims to introduce a relationship between the dynamic modulus of elasticity in healthy standing trees of Paulownia fortune (planted in Iran) and the static modulus of elasticity in sawn wood. For this reason, a stress-wave non-destructive testing technique was carried out in longitudinal and transverse directions in 14 trees into two diameter classes (25-31 cm and 32-38 cm) at breast height and in logs at different height of stem to measure the stress wave speed and consequently, dynamic modulus of elasticity. Then, static modulus of elasticity of samples was calculated using 3-point bending tests in the sawn wood. The results revealed that the stress-wave speed and dynamic modulus of elasticity in logs of Paulownia are more than those of standing trees in longitudinal direction. Also, the diameter of the tree can significantly affect the stress wave velocity in standing trees and logs of Paulownia. Finally, a high correlation coefficient exists between static modulus of elasticity and dynamic modulus of elasticity (r= 0,68) in this tree.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.21 n.1 20192019-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000100035en10.4067/S0718-221X2019005000104 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Modulus of elasticity non-destructive testing Paulownia standing trees stress-wave. |
| spellingShingle |
Modulus of elasticity non-destructive testing Paulownia standing trees stress-wave. Madhoushi,Mehrab Boskabadi,Zinat Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in Iran |
| description |
Abstract: This paper aims to introduce a relationship between the dynamic modulus of elasticity in healthy standing trees of Paulownia fortune (planted in Iran) and the static modulus of elasticity in sawn wood. For this reason, a stress-wave non-destructive testing technique was carried out in longitudinal and transverse directions in 14 trees into two diameter classes (25-31 cm and 32-38 cm) at breast height and in logs at different height of stem to measure the stress wave speed and consequently, dynamic modulus of elasticity. Then, static modulus of elasticity of samples was calculated using 3-point bending tests in the sawn wood. The results revealed that the stress-wave speed and dynamic modulus of elasticity in logs of Paulownia are more than those of standing trees in longitudinal direction. Also, the diameter of the tree can significantly affect the stress wave velocity in standing trees and logs of Paulownia. Finally, a high correlation coefficient exists between static modulus of elasticity and dynamic modulus of elasticity (r= 0,68) in this tree. |
| author |
Madhoushi,Mehrab Boskabadi,Zinat |
| author_facet |
Madhoushi,Mehrab Boskabadi,Zinat |
| author_sort |
Madhoushi,Mehrab |
| title |
Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in Iran |
| title_short |
Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in Iran |
| title_full |
Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in Iran |
| title_fullStr |
Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in Iran |
| title_full_unstemmed |
Relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of Paulownia fortune planted in Iran |
| title_sort |
relationship between the dynamic and static modulus of elasticity in standing trees and sawn lumbers of paulownia fortune planted in iran |
| publisher |
Universidad del Bío-Bío |
| publishDate |
2019 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000100035 |
| work_keys_str_mv |
AT madhoushimehrab relationshipbetweenthedynamicandstaticmodulusofelasticityinstandingtreesandsawnlumbersofpaulowniafortuneplantediniran AT boskabadizinat relationshipbetweenthedynamicandstaticmodulusofelasticityinstandingtreesandsawnlumbersofpaulowniafortuneplantediniran |
| _version_ |
1714202671930408960 |