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A study of a new foundation model

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Summary

The characteristics of a new foundation model, consisting of two spring layers interconnected by a shear layer, are studied. The study is conducted on the classical problem of a foundation subjected to a rigid stamp. In order to reduce the number of foundation constants to an absolutely necessary minimum, special attention is given to a possible dependence of the constants of the upper and lower spring layer, particularly to the spring constant ratio three which is suggested byReissner's foundation model. A comparison of the obtained pressure distributions with relevant experimental data seem to support the adoption of this value, thus reducing the number of foundation constants to two. Advantages of the presented model over other foundation models are pointed out.

Zusammenfassung

Die Eigenschaften eines neuen Fundamentmodells, das aus zwei Federschichten besteht, die durch eine Schubschichte verbunden sind, werden studiert. Die Untersuchung folgt dem klassischen Problem des starren Stempels auf elastischer Unterlage. Um die Zahl der Fundamentkonstanten auf das absolut Notwendige zu reduzieren, wird einer möglichen Abhängigkeit zwischen den Konstanten der oberen und der unteren Federschichte besondere Aufmerksamkeit gewidmet, wobei vor allem das Konstantenverhältnis 3 betrachtet wird, das demReissnerschen Modell entspricht. Ein Vergleich der errechneten Druckverteilung mit Versuchsergebnissen scheint diesen Wert zu bestätigen, womit sich die Zahl der Konstanten auf 2 erniedrigt. Die Vorteile des vorgeschlagenen Modells werden hervorgehoben.

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Kerr, A.D. A study of a new foundation model. Acta Mechanica 1, 135–147 (1965). https://doi.org/10.1007/BF01174308

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