Claus Mattheck – författare
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4 produkter
4 produkter
Engineering Optimization in Design Processes
Proceedings of the International Conference, Karlsruhe Nuclear Research Center, Germany, September 3–4, 1990
Häftad, Engelska, 1991
1 073 kr
Skickas inom 10-15 vardagar
Covering a range of topics in engineering optimization, concerning research procedures and applications, this book may also contribute new ideas and concepts in a world of ever-decreasing natural resources and an ever-increasing demand for lighter yet stronger and safer technical components. The contributions can be grouped under the following five main topics: shape and layout optimization, structural optimization with advanced materials, optimal designs with special structural and material behaviour, sensitivity program systems and optimization with stability constraints and special problems. This book of proceedings on mechanical engineering, civil engineering, off-shore engineering, applied mathematics, engineering design and computational mechanics is intended for engineers and advanced students.
1 606 kr
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Wood is a biological structure well-adapted to external loading. It carries axial loads in a tree by longitudinal fibres and radial loads by rays; circumferential compressive growth stresses prevent the tree from splitting along the rays. It is shown that axial and lateral strength is highest at places of maximum loading. Also, growth stresses are distributed in a load-controlled way. The vivid style used by the authors avoids complex formulas, preferring many impressive and simple to understand drawings. They show how a tree is internally optimized and how the partial or global breakdown of this interwoven axial and radial optimization can lead to the different failure modes.
1 499 kr
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This book describes and verifies external shape laws in nature, not only valid for trees, but also for bones, claws, thorns, etc. It is shown how growing structures repair the disturbed optimum design after wounding and damage has occured. Computer simulation of these load-adaptive growths is used to find an ecological engineering design, characterized by minimum weight and maximum strength. The optimization procedure is already widely used in industry and many technical examples are given.
1 393 kr
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Interest in trees, whether in our streets, parks or forests, has in- creasedconsiderablyin thelast 20 years or so.One reason for this has been the decline and dying of forests, which caused great concern about our environment during the 1980s. Because ofthe prominenceofthis event,which is nowblamedon abiotic factors, it is all too easyto forget that the life oftrees is also affected by a multitude of biotic factors: viruses, bacteria, fungi and animals. These may have very different relationships with trees, but are usually deleterious. The fungi playa particularlyimportant part, and during the course of their evolution they have developed various abilities and strategies in order to obtain nutrients and energy by decomposing wood. On the other hand, the tree has 'learned' to react to external and internal infections. The various interactions between fungi and trees form the main themeofthis book.In reviewing this new book I was involuntarily reminded of a work by Robert Hartig over a century ago, entitled Die Zerset- zungserscheinungen des Holzes der Nadelbiiume und der Eiche in forstlicher, botanischer und chemischer Richtung, which laid the foundation of mycological and pathological research on wood.