Plastic Deformation and Fracture of Steel under Dynamic Loading.
Abstract
The authors summarize their research effort during the grant period. Included is a comprehensive study relating dynamic plasticity and fracture initiation through experiments on 1020 hot rolled steel and 1018 cold rolled steel. A comparison of values of K sub Ic obtained using the method developed by Brown University and the instrumented precracked Charpy test is given as well as a finite element of the specimen configuration used in the dynamic plasticity experiments utilizing a torsional Kolsky bar. An experimental investigation into the formation of shear bands in low carbon steel including the measurement of the temperature rise during the formation of the shear band as well as the derivation of a criterion for predicting shear band formation is reported. Further, the details of the development of a plate impact experiment designed to attain strain rates of ten to the 5th power per s up to strains of 10% and pressures of more than 10k bar are also reported. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1980
- Accession Number
- ADA084949
Entities
People
- J. Duffy
- R. J. Clifton
Organizations
- Brown University