A Joule Heated High-Temperature Tensile Split Hopkinson Pressure Bar

Lew, A.; Kingstedt, Owen T.

doi:10.1007/s11340-022-00866-2

Cited by 2 publications

(2 citation statements)

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“…One method used to characterize the behavior of materials subjected to dynamic tension is the Split Hopkinson Tensile Bar (SHTB) [1][2][3][4][5][6]. This corresponds to a modification of the Split Hopkinson Pressure Bar (SHPB) introduced by Kolsky [7], for which strain rates ranging from 10 2 to 10 3 s −1 can be achieved [8].…”

Section: Introductionmentioning

confidence: 99%

“…The stress, strain, and strain rate determined from the recorded waves provide an accurate measure of the material behavior [2]. This method has been improved over the years and recent advances allow specimen heating [6], a wide strain rate loading range [5], or combined tension-torsion or compression-torsion that is capable of loading a specimen with a torsional stress pulse synchronously at high strain rates [9]. The results of SHTB tests with notched specimens combined with numerical simulation on Abaqus also allow Chen et al [3] to determine the parameters of the Johnson-Cook damage law of a material in addition to the parameters of the flow law.…”

Section: Introductionmentioning

confidence: 99%

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An Optimized Dynamic Tensile Impact Test for Characterizing the Behavior of Materials

Pantalé

Ming

2022

Applied Mechanics

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This paper presents a new dynamic tensile test based on the Taylor impact technique for application on metallic materials. The Taylor impact test is a well-known technique to characterize the behavior of metallic materials in compression because it allows us to reach very high strain rates (105s−1). In this dynamic tensile test, we launch a projectile with an initial velocity into a specially designed target in order to generate tensile deformation in its central area. In this paper, the geometry of a tensile target previously published in our laboratory was modified and optimized to achieve higher plastic strains and strain rates without reaching the critical state of target failure. Numerical simulations and experimental tests validate the new geometry. Experimental tests have been performed with this new geometry to show the gains allowed. Numerical simulations by finite elements on Abaqus show the equivalent plastic deformations and elongation of the two versions of the targets and the correlation of these results with the tests.

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