WOOD FRACTURE PATTERN DURING THE WATER DESORPTION PROCESS



Título del documento: WOOD FRACTURE PATTERN DURING THE WATER DESORPTION PROCESS
Revista: Maderas : ciencia y tecnología
Base de datos:
Número de sistema: 000541164
ISSN: 0718-221X
Autores: 1
2
1
Instituciones: 1Beijing Forestry University, School of Technology, Beijing, Haidian. China
2Beijing Forestry University, College of Material Science and Technology, Beijing, Haidian. China
Año:
Volumen: 8
Número: 1
Paginación: 25-30
País: Chile
Idioma: Inglés
Resumen en inglés Wood is a hygroscopic material and its mechanical properties change with moisture content below the fiber saturation point. Fracture characteristic is one of most important mechanical properties of wood and often is taken as an important safety design factor for wood as an engineered structural material. The aim of this paper is to investigate the effect of moisture content changes on wood fracture properties, focusing on fracture behavior and patterns with different crack orientations of Betula platyphylla Suk. and Pinus bungeana in two different desorption processes. These two desorption processes were, respectively, from fiber saturation point to an equilibrium moisture content corresponding to 82.4 %RH at 20°C and from 82.4 %RH to 35.2 %RH at the same temperature of 20 °C
Keyword: Water desorption,
Wood fracture
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