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Berechnung Querkontraktion • Maschinenbau-Forum
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Berechnung Querkontraktion

Fragen und Antworten zum Gebiet der Verbundwerkstoffe & Werkstoffverbunde.

Berechnung Querkontraktion

Beitragvon Neuling90 am Fr 16. Jan 2015, 21:07

Hallo,

Ich brauche dringend eure Hilfe.

Ich schreibe gerade an einer Arbeit und will die Querkontraktionszahl eines Rohacell HERO Schaums berechnen. Jeweils für einen Zug und einen Druckversuch. Gegeben ist das Zugmodul mit 123Mpa, das Druckmodul mit 48 MPa und das Schubmodul mit 28MPa.

Über den Zusammenhang Querkontraktion =(E/2*G)-1 komme ich auf 1,19 und -0,14. Diese Werte erscheinen mir sehr unlogisch.

Hat jemand eine Ahnung wo der Fehler steckt? Ich bin über jede Hilfe dankbar!

Viele Grüße

Neuling90
Neuling90
 
Beiträge: 1
Registriert: Fr 16. Jan 2015, 20:56

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