Note: Dynamic strain field mapping with synchrotron X-ray digital image correlation

Liu, Lu; Fan, D.; Bie, B.X.; Ran, X. X.; Qi, Mei; Parab, Niranjan D.; Sun, Jianzhuo; Liao, Hangjie; Hudspeth, Matthew; Claus, Benjamin; Fezzaa, Kamel; Sun, Tao; Chen, W.; Gong, Xinglong; Luo, S. N.

doi:10.1063/1.4887343

Cited by 42 publications

(30 citation statements)

References 15 publications

(23 reference statements)

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“…Details of XDIC have been given in Ref. [28]. The whole image is chosen as the regions of interest for XDIC analyses.…”

Section: Resultsmentioning

confidence: 99%

“…Dynamic XDIC provides spatially and temporally resolved information as a valuable complement to post-mortem recovery analysis with scanning electron microscope or SEM [7,9]. High-speed synchrotron XDIC has been adopted to explore dynamic deformation of Al, Mg alloys, and granular materials [27,28,32]. However, in situ measurements on dynamic strain fields in B 4 C/Al composites with high-speed XDIC are extremely rare.…”

Section: Introductionmentioning

confidence: 99%

“…However, in situ measurements on dynamic strain fields in B 4 C/Al composites with high-speed XDIC are extremely rare. Previous dynamic tensile experiments on B 4 C/Al composite usually yield bulk-scale stressstrain relationships, and micro-or meso-scale deformation dynamics is largely untouched [28,32].…”

Section: Introductionmentioning

confidence: 99%

“…However, it is difficult for microdiffraction to map in situ strain fields of materials subject to dynamic loading at microsecond scales. Recently, ultrafast x-ray imaging and diffraction have been established at the Advanced Photon Source (APS) beamline 32-ID-B under gas gun and Hopkinson/ Kolsky bar loading, for dynamic events with durations ranging from 100 ns to 100 μs, and strain rates from 10 2 s À 1 to 10 6 s À 1 [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…Local and mesoscopic deformation dynamics can be characterized with two-dimensional (2D) strain field mapping, using optical digital image correlation [29][30][31] or x-ray digital image correlation (XDIC) [27,28,32]. XDIC is essentially a combination of high-speed x-ray phase contrast imaging (XPCI) and DIC.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic tensile deformation and damage of B4C-reinforced Al composites: Time-resolved imaging with synchrotron x-rays

Bie

Huang

et al. 2016

Materials Science and Engineering: A

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a b s t r a c tDynamic tensile experiments are conducted on 15% and 30% in weight percentage B 4 C/Al composites with a split Hopkinson tension bar, along with high-speed synchrotron x-ray digital image correlation (XDIC) to map strain fields at μm and μs scales. As manifested by bulk-scale stress-strain curves, a higher particle content leads to a higher yield strength but lower ductility. Strain field mapping by XDIC demonstrates that tension deformation and tensile fracture, as opposed to shear and shear failure, dominate deformation and failure of the composites. The fractographs of recovered samples show consistent features. The particle-matrix interfaces are nucleation sites for strain localizations, and their propagation and coalescence are diffused by the Al matrix. The reduced spacing between strain localization sites with increasing particle content, facilitates their coalescence and leads to decreased ductility. Designing a particle-reinforced, metallic-matrix composite with balanced strength and ductility should consider optimizing the inter-particle distance as a key parameter.

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“…Details of XDIC have been given in Ref. [28]. The whole image is chosen as the regions of interest for XDIC analyses.…”

Section: Resultsmentioning

confidence: 99%