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- Title
Resistência ao impacto da madeira de nogueira-pecã em diferentes condições de umidade.
- Authors
Beltrame, Rafael; Mattos, Bruno Dufau; Gatto, Darci Alberto; Lazarotto, Marília; Haselein, Clovis Roberto; Santini, Elio José
- Abstract
The studies of wood impact strength refers to the efficiency of this material in absorb impact energy and dissipate it without structural damages. The present study aimed to evaluate the influence of moisture content on the impact strength of nogueira-pecã (Carya illinoinensis) wood. For this, trees from two physiographic regions of state of Rio Grande do Sul were used. The samples, stabilized at 12% of moisture content and in green conditions (saturated), were submitted to impact tests through a CHARPY pendulum, and were evaluated for theresistance to the application of loads in the tangential and radial sections, and in the positions of the log (pith-bark) for the two physiographic regions at each moisture condition. Moreover, the apparent specific gravity at 12% and in green conditions (saturated), the absorbed work, the resilience coefficient and the dynamic quote were determined. The main results showed that the nogueira-pecã wood is more resistant to the impact when it is in green conditions.
- Subjects
RIO Grande do Sul (Brazil : State); BRAZIL; WOOD; PECAN; WOOD quality; PENDULUMS
- Publication
Ciência Rural, 2012, Vol 42, Issue 9, p1583
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/S0103-84782012005000060