Artikel
Lizenziert
Nicht lizenziert
Erfordert eine Authentifizierung
Shear properties of wood measured by the asymmetric four-point bending test of notched specimen
-
Hiroshi Yoshihara
Veröffentlicht/Copyright:
10. November 2008
Abstract
The asymmetric four-point bending test for obtaining shear properties of wood was examined. Rectangular bars with various notches on top and bottom surfaces of western hemlock (Tsuga heterophylla Sarg.) were prepared as a specimen. The shear modulus, proportional limit stress, and shear strength were measured. The influence of notch configuration on the shear properties was examined independently by finite element calculations. The influence of notch configuration was not significant in experiments, while it was found relevant in finite element analyses. Although the pure shear stress condition could not be realized after the initiation of failure, the measurement of shear properties of solid wood simply by the asymmetric four-point bending test was feasible.
Keywords: asymmetric four-point bending test; finite element analysis; proportional limit stress; shear modulus; shear strength
Received: 2008-3-13
Accepted: 2008-9-16
Published Online: 2008-11-10
Published Online: 2008-11-10
Published in Print: 2009-03-01
©2009 by Walter de Gruyter Berlin New York
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Artikel in diesem Heft
- Editorial
- Editorial
- Selected articles from the COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Cell wall features with regard to mechanical performance. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Hierarchical modelling of microstructural effects on mechanical properties of wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Fracture behaviour of wood and its composites. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Modeling crack propagation in wood and wood composites. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Cutting forces in wood machining – Basics and applications in industrial processes. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Fracture toughness, chip types and the mechanics of cutting wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Recent progress in research on the cutting processes of wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Micromechanics of creep and relaxation of wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Properties of wood surfaces – characterisation and measurement. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Original Papers
- On the energy consumption for crack development in fibre wall in disc refining – A micromechanical approach
- Shear properties of wood measured by the asymmetric four-point bending test of notched specimen
- Measurement of the shear properties of clear wood by the Arcan test
- Impact of dissolved sodium salts on kraft cooking reactions
- Addition of bisulphite to lignin α-carbonyl groups: A study on model compounds and lignin-rich pulp
- Visualization of interfacial zones in lyocell fiber-reinforced polypropylene composite by AFM contrast imaging based on phase and thermal conductivity measurements
- Ultrastructural development of the softwood cell wall during pyrolysis
- Short Note
- Effect of copper xyligen treatment on bending properties of wood
- Personalia
- Umdasch Research Award
- Meeting
- 10.1515/HF.2009.042
Schlagwörter für diesen Artikel
asymmetric four-point bending test;
finite element analysis;
proportional limit stress;
shear modulus;
shear strength
Artikel in diesem Heft
- Editorial
- Editorial
- Selected articles from the COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Cell wall features with regard to mechanical performance. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Hierarchical modelling of microstructural effects on mechanical properties of wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Fracture behaviour of wood and its composites. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Modeling crack propagation in wood and wood composites. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Cutting forces in wood machining – Basics and applications in industrial processes. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Fracture toughness, chip types and the mechanics of cutting wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Recent progress in research on the cutting processes of wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Micromechanics of creep and relaxation of wood. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Properties of wood surfaces – characterisation and measurement. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture
- Original Papers
- On the energy consumption for crack development in fibre wall in disc refining – A micromechanical approach
- Shear properties of wood measured by the asymmetric four-point bending test of notched specimen
- Measurement of the shear properties of clear wood by the Arcan test
- Impact of dissolved sodium salts on kraft cooking reactions
- Addition of bisulphite to lignin α-carbonyl groups: A study on model compounds and lignin-rich pulp
- Visualization of interfacial zones in lyocell fiber-reinforced polypropylene composite by AFM contrast imaging based on phase and thermal conductivity measurements
- Ultrastructural development of the softwood cell wall during pyrolysis
- Short Note
- Effect of copper xyligen treatment on bending properties of wood
- Personalia
- Umdasch Research Award
- Meeting
- 10.1515/HF.2009.042
