1991
DOI: 10.1115/1.2903397
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A One-Dimensional, Two-Phase Flow Model for Taylor Impact Specimens

Abstract: In this paper, a simple theoretical analysis of an old problem is presented. The analysis is more complete than earlier versions, but retains the mathematical simplicity of the earlier versions. The major thrust is to separate the material response into two phases. The first phase is dominated by strain rate effects and has a variable plastic wave speed. The second phase is dominated by strain hardening effects and has a constant plastic wave speed. Estimates for dynamic yield stress, strain, strainrate, and p… Show more

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Cited by 18 publications
(12 citation statements)
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“…Numerical modeling of the behavior of projectiles under these conditions has attracted the attention of many researchers (Taylor 1948;Johnson andCook 1983, 1985;Zerilli and Armstrong 1988;Jones et al, 1989;Holt et al, 1994). Most of the models neglect twinning and assume that slip is the only mechanism of inelastic deformation.…”
Section: Inelastic Behavior Of Metalsmentioning
confidence: 98%
“…Numerical modeling of the behavior of projectiles under these conditions has attracted the attention of many researchers (Taylor 1948;Johnson andCook 1983, 1985;Zerilli and Armstrong 1988;Jones et al, 1989;Holt et al, 1994). Most of the models neglect twinning and assume that slip is the only mechanism of inelastic deformation.…”
Section: Inelastic Behavior Of Metalsmentioning
confidence: 98%
“…Following Taylor tests conducted on OFHC Cu, three regimes of distinct plastic wave behavior, referred to as Phases I-III, have been suggested by Jones et al [7,8]. At early times (Phase I), the propagation of the plastic/elastic boundary is "non-linear" (varying velocity).…”
Section: Introductionmentioning
confidence: 99%
“…A revised form of the House analysis [6] developed for the reverse configuration is applied to the specimen profiles to expand the description of plastic wave propagation presented by Jones et al [7], and to estimate the plastic wave velocity and dynamic flow stress as a function of axial position and time.…”
Section: Introductionmentioning
confidence: 99%
“…Taylor assumed a constant¯ow stress of the material and related it to the ®nal dimensions of the deformed projectile. Jones et al (1991Jones et al ( ), (1992 improved upon Taylor's analysis of the problem by dividing it into two phases. The ®rst high strain-rate phase ends with the attenuation of shock waves initiated by the impact.…”
Section: Introductionmentioning
confidence: 99%