Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data

A. D. Brown, Q. Pham, Pedro Peralta, B. M. Patterson, J. P. Escobedo-Diaz, S. N. Luo, D. Dennis-Koller, E. K. Cerreta, D. Byler, A. Koskelo, X. Xiao

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Three-dimensional X-ray tomography (XRT) provides a non-destructive technique to determine the location, size, and shape of spall damage within shock loaded metals. Polycrystalline copper samples of varying thermomechanical histories were shocked via plate impacts at low pressures to ensure incipient spall conditions. Additionally, samples of similar heat-treated microstructures were impacted at various loading rates. All 3D XRT volumetric void data underwent smoothing, thresholding, and volumetric sieves. The full inertia tensor was found for each void, which was used to create best fit ellipsoids correlating shape to damage modes. Density distributions were plotted for the best-fit ellipsoid semi-axes aspect ratios alc and blc, where, a≤b≤c. It was found that >60% of voids in heat-treated samples resembled transgranular damage, whereas >70% of voids in the rolled sample resembled intergranular damage. Preliminary analysis also clearly indicates an increase of void coalescence with decreasing tensile loading stress rates for impacted samples of similar microstructures.

Original languageEnglish (US)
Title of host publicationCharacterization of Minerals, Metals, and Materials 2016
PublisherSpringer International Publishing
Pages57-64
Number of pages8
ISBN (Electronic)9783319482101
ISBN (Print)9781119264392
DOIs
StatePublished - Jan 1 2016

Fingerprint

Tomography
Metals
X rays
Microstructure
Sieves
Coalescence
Tensors
Aspect ratio
Copper
Hot Temperature

Keywords

  • Copper
  • Microstructure
  • Shock loading
  • Spall
  • X-ray tomography

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Brown, A. D., Pham, Q., Peralta, P., Patterson, B. M., Escobedo-Diaz, J. P., Luo, S. N., ... Xiao, X. (2016). Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data. In Characterization of Minerals, Metals, and Materials 2016 (pp. 57-64). Springer International Publishing. https://doi.org/10.1007/978-3-319-48210-1_7

Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data. / Brown, A. D.; Pham, Q.; Peralta, Pedro; Patterson, B. M.; Escobedo-Diaz, J. P.; Luo, S. N.; Dennis-Koller, D.; Cerreta, E. K.; Byler, D.; Koskelo, A.; Xiao, X.

Characterization of Minerals, Metals, and Materials 2016. Springer International Publishing, 2016. p. 57-64.

Research output: Chapter in Book/Report/Conference proceedingChapter

Brown, AD, Pham, Q, Peralta, P, Patterson, BM, Escobedo-Diaz, JP, Luo, SN, Dennis-Koller, D, Cerreta, EK, Byler, D, Koskelo, A & Xiao, X 2016, Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data. in Characterization of Minerals, Metals, and Materials 2016. Springer International Publishing, pp. 57-64. https://doi.org/10.1007/978-3-319-48210-1_7
Brown AD, Pham Q, Peralta P, Patterson BM, Escobedo-Diaz JP, Luo SN et al. Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data. In Characterization of Minerals, Metals, and Materials 2016. Springer International Publishing. 2016. p. 57-64 https://doi.org/10.1007/978-3-319-48210-1_7
Brown, A. D. ; Pham, Q. ; Peralta, Pedro ; Patterson, B. M. ; Escobedo-Diaz, J. P. ; Luo, S. N. ; Dennis-Koller, D. ; Cerreta, E. K. ; Byler, D. ; Koskelo, A. ; Xiao, X. / Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data. Characterization of Minerals, Metals, and Materials 2016. Springer International Publishing, 2016. pp. 57-64
@inbook{592bb0cb85b0404bbcafe0ee0772f139,
title = "Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data",
abstract = "Three-dimensional X-ray tomography (XRT) provides a non-destructive technique to determine the location, size, and shape of spall damage within shock loaded metals. Polycrystalline copper samples of varying thermomechanical histories were shocked via plate impacts at low pressures to ensure incipient spall conditions. Additionally, samples of similar heat-treated microstructures were impacted at various loading rates. All 3D XRT volumetric void data underwent smoothing, thresholding, and volumetric sieves. The full inertia tensor was found for each void, which was used to create best fit ellipsoids correlating shape to damage modes. Density distributions were plotted for the best-fit ellipsoid semi-axes aspect ratios alc and blc, where, a≤b≤c. It was found that >60{\%} of voids in heat-treated samples resembled transgranular damage, whereas >70{\%} of voids in the rolled sample resembled intergranular damage. Preliminary analysis also clearly indicates an increase of void coalescence with decreasing tensile loading stress rates for impacted samples of similar microstructures.",
keywords = "Copper, Microstructure, Shock loading, Spall, X-ray tomography",
author = "Brown, {A. D.} and Q. Pham and Pedro Peralta and Patterson, {B. M.} and Escobedo-Diaz, {J. P.} and Luo, {S. N.} and D. Dennis-Koller and Cerreta, {E. K.} and D. Byler and A. Koskelo and X. Xiao",
year = "2016",
month = "1",
day = "1",
doi = "10.1007/978-3-319-48210-1_7",
language = "English (US)",
isbn = "9781119264392",
pages = "57--64",
booktitle = "Characterization of Minerals, Metals, and Materials 2016",
publisher = "Springer International Publishing",

}

TY - CHAP

T1 - Methodology for determining spall damage mode preference in shocked FCC polycrystalline metals from 3D X-Ray tomography data

AU - Brown, A. D.

AU - Pham, Q.

AU - Peralta, Pedro

AU - Patterson, B. M.

AU - Escobedo-Diaz, J. P.

AU - Luo, S. N.

AU - Dennis-Koller, D.

AU - Cerreta, E. K.

AU - Byler, D.

AU - Koskelo, A.

AU - Xiao, X.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Three-dimensional X-ray tomography (XRT) provides a non-destructive technique to determine the location, size, and shape of spall damage within shock loaded metals. Polycrystalline copper samples of varying thermomechanical histories were shocked via plate impacts at low pressures to ensure incipient spall conditions. Additionally, samples of similar heat-treated microstructures were impacted at various loading rates. All 3D XRT volumetric void data underwent smoothing, thresholding, and volumetric sieves. The full inertia tensor was found for each void, which was used to create best fit ellipsoids correlating shape to damage modes. Density distributions were plotted for the best-fit ellipsoid semi-axes aspect ratios alc and blc, where, a≤b≤c. It was found that >60% of voids in heat-treated samples resembled transgranular damage, whereas >70% of voids in the rolled sample resembled intergranular damage. Preliminary analysis also clearly indicates an increase of void coalescence with decreasing tensile loading stress rates for impacted samples of similar microstructures.

AB - Three-dimensional X-ray tomography (XRT) provides a non-destructive technique to determine the location, size, and shape of spall damage within shock loaded metals. Polycrystalline copper samples of varying thermomechanical histories were shocked via plate impacts at low pressures to ensure incipient spall conditions. Additionally, samples of similar heat-treated microstructures were impacted at various loading rates. All 3D XRT volumetric void data underwent smoothing, thresholding, and volumetric sieves. The full inertia tensor was found for each void, which was used to create best fit ellipsoids correlating shape to damage modes. Density distributions were plotted for the best-fit ellipsoid semi-axes aspect ratios alc and blc, where, a≤b≤c. It was found that >60% of voids in heat-treated samples resembled transgranular damage, whereas >70% of voids in the rolled sample resembled intergranular damage. Preliminary analysis also clearly indicates an increase of void coalescence with decreasing tensile loading stress rates for impacted samples of similar microstructures.

KW - Copper

KW - Microstructure

KW - Shock loading

KW - Spall

KW - X-ray tomography

UR - http://www.scopus.com/inward/record.url?scp=85015155840&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85015155840&partnerID=8YFLogxK

U2 - 10.1007/978-3-319-48210-1_7

DO - 10.1007/978-3-319-48210-1_7

M3 - Chapter

AN - SCOPUS:85015155840

SN - 9781119264392

SP - 57

EP - 64

BT - Characterization of Minerals, Metals, and Materials 2016

PB - Springer International Publishing

ER -