-Integral -Curve Testing of High Strength Steels Utilizing the Direct-Current Potential Drop Method

MG Vassilaros; EM Hackett

doi:10.1520/STP32573S

SYMPOSIA PAPER Published: 01 January 1984

STP32573S

-Integral -Curve Testing of High Strength Steels Utilizing the Direct-Current Potential Drop Method

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J-integral R-curve tests were performed on 1T compact specimens of 3Ni and 5Ni steels under both quasi-static and rapid loading. A direct-current potential drop technique was developed for the crack extension measurements. This technique accounted for specimen plasticity and correlated well with crack extension measurements determined from elastic compliance. Potential drop proved to be a valid technique for the determination of R-curves under rapid loading. Increasing the loading rate elevated the J_I-R curves for both the 3Ni and 5Ni steels with respect to the quasi-static case.

Author Information

Vassilaros, MG

David Taylor Naval Ship Research and Development Center, Annapolis, Md.

Hackett, EM

David Taylor Naval Ship Research and Development Center, Annapolis, Md.

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Details

Developed by Committee: E08

Pages: 535–552

DOI: 10.1520/STP32573S

ISBN-EB: 978-0-8031-4900-7

ISBN-13: 978-0-8031-0208-8

-Integral -Curve Testing of High Strength Steels Utilizing the Direct-Current Potential Drop Method

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