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Maschinenbau-Forum • Normalkraft eines Stabs
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Normalkraft eines Stabs

BeitragVerfasst: Sa 3. Jan 2015, 11:56
von danza95
Hallo,

ich habe eine Frage zu einer kleine Aufgabe. Wir haben einen hängenden Stab konstanter Querschnittsfläche
A unter der Wirkung seines Eigengewichts. Nun muss man ja für die Spannung später die Fläche und die Normalkraft ausrechnen. Die Normalkraft ist in diesem Fall G(x).

So jetzt verstehe ich nicht wie man auf diese Formel für G(x) kommt: g*(l-x)/l. Ich habe es schon mit Integration probiert aber irgendwie kam ich nicht auf das passende Ergebnis.

Hoffe ihr könnt mir da weiter helfen.

Danke schon mal im voraus