Time dependence of strength of bodies in cleavage

Romanchenko, V. I.; Степанов, Г. В.

doi:10.1007/bf01528592

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…The HEL's and the depth of the "pullback" signals, reflecting the spall strengths of the four materials, each illustrate substantial differences between the dynamic response of the wrought and AM-Ta samples as well as a pronounced influence of loading direction relative to the AM build direction. Quantitatively, the spall strengths, calculated from the perspective of the simple spall model [13], and the HEL's of the wrought and three AM-Ta samples are presented in Table I. From the loading portions of the profiles it is readily observed that: 1) all three AM-Ta samples exhibit higher HEL's than the wrought Ta, 2) the thru-thickness direction displays a higher HEL than the in-plane direction for the fully-dense AM-Ta, and 3) for the in-plane direction of the build, the fully dense region HEL is slightly higher than the in-plane direction possessing build flaws.…”

Section: -2mentioning

confidence: 99%

Structure/property characterization of spallation in wrought and additively manufactured tantalum

GrayIII

Knapp

Jones

et al. 2018

AIP Conference Proceedings

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Abstract. Certification and product qualification of an engineering component generally involves meeting engineering and physics requirements tied to its functional requirements. . In this paper, the results of a study quantifying the microstructure and the dynamic damage evolution of Tantalum (Ta) fabricated using an EOS laser-powder-bed machine are presented. The microstructure of the AM-Ta is detailed and compared / contrast to wrought Ta. The dynamic damage evolution and failure response of the AM-Ta material, as well as wrought Ta, was probed using flyer-plate impact driven spallation experiments. The differences in the spallation response between the AM and wrought Ta were measured using in-situ velocimetry as well as postmortem quantification of damage in "soft-recovered" samples. The damage evolution of the AM and wrought Ta were characterized using optical metallography.

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Section: -2mentioning

confidence: 99%

Structure/property characterization of spallation in wrought and additively manufactured tantalum

GrayIII

Knapp

Jones

et al. 2018

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…The HEL's and the depth of the "pull-back" signals, reflecting the spall strengths of the four materials, each illustrate substantial differences between the dynamic response of the wrought and AM-Ta samples as well as a pronounced influence of loading direction relative to the AM build direction. Quantitatively, the spall strengths, calculated from the perspective of the simple spall model [16], and the HEL's of the wrought and three AM-Ta samples are presented in Table II. From the loading portions of the profiles it is readily observed that all three AM-Ta samples exhibit higher HEL's than the wrought Ta.…”

Section: Constitutive Responsementioning

confidence: 99%

Structure / Property (Constitutive and Dynamic Strength / Damage) Behavior of Additively Manufactured Tantalum

et al. 2018

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For Certification and qualification of an engineering component generally involves meeting engineering and physics requirements tied to its functional requirements. In this paper, the results of a study quantifying the microstructure, mechanical behavior, and the dynamic damage evolution of Tantalum (Ta) fabricated using an EOS laser-powder-bed machine are presented. The microstructure and quasi-static mechanical behavior of the AM-Ta is detailed and compared / contrasted to wrought Ta. The dynamic damage evolution and failure response of the AM-Ta material, as well as wrought Ta, was probed using flyer-plate impact driven spallation experiments. The differences in the spallation response between the AM and wrought Ta were measured using in-situ velocimetry as well as post-mortem quantification of damage in “soft-recovered” samples. The damage evolution of the AM and wrought Ta were characterized using both optical metallography and electron-backscatter diffraction.

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Influence of sweeping detonation-wave loading on shock hardening and damage evolution during spallation loading in tantalum

Gray

Hull

Livescu

et al. 2012

EPJ Web of Conferences

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Abstract.Widespread research over the past five decades has provided a wealth of experimental data and insight concerning the shock hardening, damage evolution, and the spallation response of materials subjected to square-topped shock-wave loading profiles. However, fewer quantitative studies have been conducted on the effect of direct, in-contact, high explosive (HE)-driven Taylor wave (unsupported shocks) loading on the shock hardening, damage evolution, or spallation response of materials. Systematic studies quantifying the effect of sweeping-detonation wave loading are yet sparser. In this study, the shock hardening and spallation response of Ta is shown to be critically dependent on the peak shock stress and the shock obliquity during sweeping-detonation-wave shock loading. Sweeping-wave loading is observed to: a) yield a lower spall strength than previously documented for 1-D supported-shock-wave loading, b) exhibit increased shock hardening as a function of increasing obliquity, and c) lead to an increased incidence of deformation twin formation with increasing shock obliquity.

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Time dependence of strength of bodies in cleavage

Cited by 4 publications

References 2 publications

Structure/property characterization of spallation in wrought and additively manufactured tantalum

Structure/property characterization of spallation in wrought and additively manufactured tantalum

Structure / Property (Constitutive and Dynamic Strength / Damage) Behavior of Additively Manufactured Tantalum

Influence of sweeping detonation-wave loading on shock hardening and damage evolution during spallation loading in tantalum

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