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Titlebook: Wood - The Internal Optimization of Trees; Claus Mattheck,Hans Kubler Book 1997 Springer-Verlag Berlin Heidelberg 1997 Baum.Biomechanik.Fr

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發(fā)表于 2025-3-21 19:50:30 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Wood - The Internal Optimization of Trees
編輯Claus Mattheck,Hans Kubler
視頻videohttp://file.papertrans.cn/1031/1030674/1030674.mp4
叢書名稱Springer Series in Wood Science
圖書封面Titlebook: Wood - The Internal Optimization of Trees;  Claus Mattheck,Hans Kubler Book 1997 Springer-Verlag Berlin Heidelberg 1997 Baum.Biomechanik.Fr
描述Here are two physicists looking over the fence of physics, getting thrilled by the life and growth of trees, taking an altogether different, exciting view of wood: trees produce wood for their own benefit. They do not live for the benefit of man who builds his world using wood as a raw material. Timber is revealed in a different light, and the reader is taught to stop thinking of it in terms of defective beams and boards. Wood only fails as a part of the living tree. To us, the tree and wood biologists, this new definition is a real, inspiring challenge, which is just what Kubler and Mattheck intended it to be. Their answers may seem too simple or little logical to some of us; but the authors are not at a loss for sound and solid arguments. Their field studies prove the incredible, their hypotheses makes us want to get to the bottom of the un- proven unbelievable. The authors‘ answers and arguments are bold and cour- ageous. They arouse our curiosity and force us to fathom the facts. It seems as if Kubler and Mattheck wanted to trick us into believing that trees only live and react following mechanical rules and strategies. To tell the truth, that was what I first suspected the aut
出版日期Book 1997
關鍵詞Baum; Biomechanik; Fraktometer; Gestaltoptimierung; Holz; biomechanics; fractometer; growth; mechanics; optim
版次1
doihttps://doi.org/10.1007/978-3-642-61219-0
isbn_softcover978-3-540-62019-8
isbn_ebook978-3-642-61219-0Series ISSN 1431-8563
issn_series 1431-8563
copyrightSpringer-Verlag Berlin Heidelberg 1997
The information of publication is updating

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沙發(fā)
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Parallel Fiber and Force Flow Arrangement,o fiber splitting (Fig. 34). If exposed, however, to tensile stresses at some angle to the grain, the fibers fall out of their optimum order, and high transverse tensile stresses and shear stresses occur, which threaten to split them. The risk of splitting is highest in the case of tension across th
地板
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Tree Rings and Force Flow,er stage. This being so, the longitudinal tree ring formations obey the same fiber-and-force-flow concurrence rules as the manifestations discussed above for the fibers. When the run of the tree rings is adapted to the force flow, the shear between adjacent structures is minimized and the transverse
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Book 1997view of wood: trees produce wood for their own benefit. They do not live for the benefit of man who builds his world using wood as a raw material. Timber is revealed in a different light, and the reader is taught to stop thinking of it in terms of defective beams and boards. Wood only fails as a par
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,Final Remarks — Review and Outlook,lf-optimization measures. The failure of one or more of these measures due to external disturbances or decay may inflict the tree with a localized or thorough disaster. The mechanical reserves that the tree can mobilize to avoid such catastrophes are defined and specified by the safety factor.
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發(fā)表于 2025-3-23 05:22:51 | 只看該作者
Tree Rings and Force Flow, splitting forces are reduced. This shear stress and transverse tensile stress relief is a useful mechanism if one considers that the latewood/earlywood boundaries are welds that do not consist of additional material attached continuously in the course of time.
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