Dynamic tearing of thin steel sheet

• Autorzy: Aberkane M. , Pluvinage G. , Ouibrahim A.
• Języki publikacji: EN

Abstrakty

EN

This paper presents an energy analysis during dynamic tearing tests of thin steel sheet. A Charpy test device and an original experimental method are employed. The dynamic fracture toughness at initiation R0,dyn and the dynamic tearing modulus Tdyn are obtained. For comparison, static trousers tearing tests are conducted, on the same material, in order to study the influence loading rate (V) on the essential work of fracture 'Gamma'e (calculated from Mai and Cotterell (1984)). We have shown that by varying the loading rate from 1mm/min to 300 mm/min, the essential work of fracture 'Gamma'e decreases slowly with the logarithm of the loading rate V. A significant drop in the dynamic fracture toughness compared to static one is observed, while making a comparison between R0,dyn and 'Gamma'e (1mm/min) due to the increase in the yield stress with loading rate.

Słowa kluczowe

EN

ductile tearing; trousers test; essential work of fracture; Charpy test device; petalling

PL

blacha stalowa; pękanie; wytrzymałość materiałów

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2004
• Tom: Vol. 9, no 2
• Strony: 213--226
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Aberkane M.

• Laboratoire de Fiabilité Mécanique, Université de Metz 57045 Metz cedex 01, FRANCE

autor

Pluvinage G.

• Laboratoire de Fiabilité Mécanique, Université de Metz 57045 Metz cedex 01, FRANCE

autor

Ouibrahim A.

• Laboratoire d'Energétique Mécanique et Matériaux Université de Boumerdes 35000, ALGERIA

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