Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermo - hydromechanical compression of fast growing poplar from short term plantation
Moisture and Temperature do have a considerate impact on wood properties. High temperatures and moisture content soften the wooden structure and allow to compress and to form wood without harming the inner structure. During compression, the structure stores deformation that later can be regained. The elasticity is enhanced proportional to the amount of compression. In wood machining, the material is no longer considered to be a solid body, but a cellular solid. This is will change the prospect on treating wood considerably. Forming perpendicular to the grain will add to milling and sawing and enhance the possibilities of treating timber for constructive purpose. To utilize the deformation, compressing must be done in a different way than when compression is done to enhance the material properties. To establish the densification method, temperature, moisture content and compression speed must be fitted to this purpose. Small, clear samples are compressed varying the parameter mentioned and are being evaluated according to the defined purposes. Measuring the stress strain relationship during the densification process, studying the spring back and analyzing the densification distribution within the cross section enables to evaluate the process parameters.
Thermo - hydromechanical compression of fast growing poplar from short term plantation
Moisture and Temperature do have a considerate impact on wood properties. High temperatures and moisture content soften the wooden structure and allow to compress and to form wood without harming the inner structure. During compression, the structure stores deformation that later can be regained. The elasticity is enhanced proportional to the amount of compression. In wood machining, the material is no longer considered to be a solid body, but a cellular solid. This is will change the prospect on treating wood considerably. Forming perpendicular to the grain will add to milling and sawing and enhance the possibilities of treating timber for constructive purpose. To utilize the deformation, compressing must be done in a different way than when compression is done to enhance the material properties. To establish the densification method, temperature, moisture content and compression speed must be fitted to this purpose. Small, clear samples are compressed varying the parameter mentioned and are being evaluated according to the defined purposes. Measuring the stress strain relationship during the densification process, studying the spring back and analyzing the densification distribution within the cross section enables to evaluate the process parameters.
Thermo - hydromechanical compression of fast growing poplar from short term plantation
Thermo-hydromechanische Kompression von schnell wachsendem Pappelholz von kurzfristigen Pflanzungen
Ziegler, Sonja (Autor:in) / Schreiber, Julia (Autor:in) / Haller, Peer (Autor:in)
2008
9 Seiten, 11 Bilder, 1 Tabelle, 10 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
The Study on PF-CaCO~3/Fast-Growing Poplar Composite
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Potential of poplar plantation for enhancing Polish farm sustainability
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Hydromechanical Behaviour of Rock-Bentonite Interfaces Under Compression
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Hydromechanical Behaviour of Rock-Bentonite Interfaces Under Compression
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