Article
Licensed
Unlicensed
Requires Authentication
Mode I Fracture Behaviour on the Growth Ring Scale and Cellular Level of Spruce (Picea abies [L.] Karst.) and Beech (Fagus sylvatica L.) Loaded in the TR Crack Propagation System
-
K. Frühmann
Published/Copyright:
June 1, 2005
Summary
Crack propagation in wood is strongly influenced by the microscopic structure of the material. The relationship between structure and function with regard to damage and fracture behaviour can only be understood with a sufficiently fine level of examination. An experimental approach to perform micro-wedge splitting tests on spruce and beech inside the chamber of an Environmental Scanning Electron Microscope and under atmospheric conditions is presented. The specimens are loaded in mode I in the TR crack propagation system. Based on the load-displacement diagram, the characteristic parameters of fracture energy, critical load and initial elasticity are determined. The load and displacement data for the in situ experiments are related to the obtained ESEM images and allow a discussion of the fracture process on the cellular level. Density was found to be an important factor for fracture mode and several crack arresting phenomena depending on the variation of elasticity could be identified.
:
Published Online: 2005-06-01
Published in Print: 2003-10-30
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
You are currently not able to access this content.
You are currently not able to access this content.
Articles in the same Issue
- Contents
- Subject Index
- Species Index
- Author Index
- Diurnal Differences in the Innermost Surface of the S2 Layer in Differentiating Tracheids of Cryptomeria japonica Corresponding to a Light-Dark Cycle
- The Isolation of Specific Bio-Control Agents for the Dry Rot Fungus Serpula Lacrymans
- TEM Examination of Surface Characteristics of Rubberwood (Hevea brasiliensis) HTMP Fibers
- Termiticidal Performance of Wood-Based Composites Treated with Silafluofen Using Supercritical Carbon Dioxide
- Use of Animal Proteins to Limit Leaching of Active Copper Ions Preservatives from Treated Wood
- Speciation of Cr and As Leachates from CCA Treated Wood by Differential Pulse Polarography
- Delignification Mechanism during High-Boiling Solvent Pulping Part 3. Structural Changes in Lignin Analyzed by 13C-NMR Spectroscopy
- Topochemical Investigations on Delignification of Picea abies [L.] Karst. during Alkaline Sulfite (ASA) and Bisulfite Pulping by Scanning UV Microspectrophotometry
- Delignification of Bamboo (Bambusa procera acher) Part 2. Characterisation of Kraft Black Liquors from Different Cooking Conditions
- The Effect of Magnesium Ions and Chelants on Peroxide Bleaching
- Moisture Content of Green Wood in High Temperature Water Vapor
- Wood Fracture Pattern during the Water Adsorption Process
- Use of the Partial Least Squares Method with Acoustic Vibration Spectra as a New Grading Technique for Structural Timber
- Mode I Fracture Behaviour on the Growth Ring Scale and Cellular Level of Spruce (Picea abies [L.] Karst.) and Beech (Fagus sylvatica L.) Loaded in the TR Crack Propagation System
- Microtensile Testing of Wood Fibers Combined with Video Extensometry for Efficient Strain Detection
- Mapping Radial,Tangential and Longitudinal Shrinkages and Relation to Tension Wood in Discs of the Tropical Tree Symphonia globulifera
- Assessment of Wood-Cement Compatibility: A New Approach
Articles in the same Issue
- Contents
- Subject Index
- Species Index
- Author Index
- Diurnal Differences in the Innermost Surface of the S2 Layer in Differentiating Tracheids of Cryptomeria japonica Corresponding to a Light-Dark Cycle
- The Isolation of Specific Bio-Control Agents for the Dry Rot Fungus Serpula Lacrymans
- TEM Examination of Surface Characteristics of Rubberwood (Hevea brasiliensis) HTMP Fibers
- Termiticidal Performance of Wood-Based Composites Treated with Silafluofen Using Supercritical Carbon Dioxide
- Use of Animal Proteins to Limit Leaching of Active Copper Ions Preservatives from Treated Wood
- Speciation of Cr and As Leachates from CCA Treated Wood by Differential Pulse Polarography
- Delignification Mechanism during High-Boiling Solvent Pulping Part 3. Structural Changes in Lignin Analyzed by 13C-NMR Spectroscopy
- Topochemical Investigations on Delignification of Picea abies [L.] Karst. during Alkaline Sulfite (ASA) and Bisulfite Pulping by Scanning UV Microspectrophotometry
- Delignification of Bamboo (Bambusa procera acher) Part 2. Characterisation of Kraft Black Liquors from Different Cooking Conditions
- The Effect of Magnesium Ions and Chelants on Peroxide Bleaching
- Moisture Content of Green Wood in High Temperature Water Vapor
- Wood Fracture Pattern during the Water Adsorption Process
- Use of the Partial Least Squares Method with Acoustic Vibration Spectra as a New Grading Technique for Structural Timber
- Mode I Fracture Behaviour on the Growth Ring Scale and Cellular Level of Spruce (Picea abies [L.] Karst.) and Beech (Fagus sylvatica L.) Loaded in the TR Crack Propagation System
- Microtensile Testing of Wood Fibers Combined with Video Extensometry for Efficient Strain Detection
- Mapping Radial,Tangential and Longitudinal Shrinkages and Relation to Tension Wood in Discs of the Tropical Tree Symphonia globulifera
- Assessment of Wood-Cement Compatibility: A New Approach
