WIT Press


Constitutive Relation And Failure Criterion For Three Structural Steels At High Strain Rates

Price

Free (open access)

Paper DOI

10.2495/SU020411

Volume

63

Pages

10

Published

2002

Size

469 kb

Author(s)

S Dey, O S Hopperstad, T Børvik & A H Clausen

Abstract

The effects of strain rate, temperature and stress triaxiality on strength and ductility are studied for the three structural steels Weldox 460 E, Weldox 700 E and Weldox 900 E. The material properties are obtained from three types of tensile tests: quasi-static tests with smooth and notched specimens, quasi-static tests at elevated temperatures and dynamic tests over a wide range of strain rates. The test data are used to determine material constants for constitutive relations and fracture criteria for the three steels.

Keywords