- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- Behaviour of wood under compression perpendicular to...
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
Behaviour of wood under compression perpendicular to grain loading Hall, Christopher Percival
Abstract
Present methods of determining design values for compression perpendicular to grain involves the testing of specimens of one specific geometry. The geometry of this test is very different from the geometries of bearing conditions occurring in practice. It was hypothesized that this test does not represent actual bearing conditions in practice and the object of this thesis was to find a more representative method of designing for compression perpendicular to grain. This thesis found the behaviour of wood in compression perpendicular to grain loading is strongly dependent on geometry in both the linear and nonlinear ranges of applied loading. A finite element analytical model, verified by testing, was used for the analysis. The analysis found the deflection is strongly dependent on the modulus of elasticity perpendicular to grain and nearly independent of other material properties. Also the capacity was found to be dependent on a characteristic material term and only weakly dependent on other material properties. A design method, one which includes an estimate of the deflection of the bearing plate, was developed from the results of this research. This proposed design method is valid for the capacities of the different geometries of bearing conditions occurring in practice.
Item Metadata
Title |
Behaviour of wood under compression perpendicular to grain loading
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
1980
|
Description |
Present methods of determining design values for compression perpendicular
to grain involves the testing of specimens of one specific geometry. The geometry of this test is very different from the geometries of bearing conditions occurring in practice. It was hypothesized that this test does not represent actual bearing conditions in practice and the object of this thesis was to find a more representative method of designing for compression
perpendicular to grain.
This thesis found the behaviour of wood in compression perpendicular to grain loading is strongly dependent on geometry in both the linear and nonlinear ranges of applied loading. A finite element analytical model, verified by testing, was used for the analysis. The analysis found the deflection is strongly dependent on the modulus of elasticity perpendicular to grain and nearly independent of other material properties. Also the capacity was found to be dependent on a characteristic material term and only weakly dependent on other material properties.
A design method, one which includes an estimate of the deflection of the bearing plate, was developed from the results of this research. This proposed
design method is valid for the capacities of the different geometries of bearing conditions occurring in practice.
|
Genre | |
Type | |
Language |
eng
|
Date Available |
2010-03-22
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
DOI |
10.14288/1.0062555
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Campus | |
Scholarly Level |
Graduate
|
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.