Plastic Flow and Failure in HY100, HY130 and AF1410 Alloy Steels Under HighStrain Rate and Impact Loading Conditions

摘要

This report presents the results from impact experiments, constitutive/failuremodeling, and metallurgical failure analyses for three steels: HY100, HY130, and AF1410. The main objectives of this effort are: (1) to obtain fundamental engineering data in terms of stress-strain curves up to failure at different temperatures and strain rates, (2) to evaluate the observed differences in the macroscopic behaviors through microscopic metallurgical studies, and (3) to describe the flow and failure behaviors using already available material strength and spall models. The high strain rate and impact experiments considered are me split Hopkinson bar (SHB) and me planar pate impact tests, respectively. In addition, the baseline data include quasi-static (QS) tests at low strain rates. The QS and SHB data provide stress-strain curves at different strain rates and temperatures. The experimental data illustrate the effects of two important loading parameters (strain rate and temperature) on me flow and failure behaviors of HY100, HY130, and AF1410 steels. (MM).