High Strain Rate Performance of Pressureless Sintered Boron Carbide

Sano, Tomoko; Shaeffer, Matthew; Vargas-Gonzalez, Lionel; Pomerantz, Joshua

doi:10.1007/978-3-319-00771-7_2

Cited by 3 publications

(9 citation statements)

References 15 publications

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“…Lastly, we briefly discuss why strength may perhaps not be a strong indicator of ballistic performance, as Krell and Strassburger indicated and Sano et al pointed out, despite this property likely being related to fragmentation (Eqs. and ).…”

Section: Discussionmentioning

confidence: 89%

“…The results from our study suggest that an increased fragment size (and therefore by implication an improved ballistic performance) can be accomplished by increasing the spacing between graphitic disks. We use this insight to explain recent ballistic tests published in Sano et al…”

Section: Discussionmentioning

confidence: 95%

“…In their study, Sano et al investigated the ballistic performance of two boron carbide materials: hot‐pressed PAD and pressureless sintered material (PS). There was a noted inferiority of the PS material in its ballistic performance, including considerably more variability in its penetration resistance over a range of normalized impact velocities.…”

Section: Discussionmentioning

confidence: 99%

“…Kimberley et al developed a scaling relationship linking compressive strength and flaw density (i.e.,

{normalσ}_{normalc} \propto {normalη}^{- 1 / 4}

), therefore, a 45% decrease in flaw density would result in a 22% increase in strength. Based on available experimental measurements of uniaxial compressive strengths provided in studies by Sano et al, in‐test variations can range between 8% and 16%. Thus, when the in‐test variations are compounded (i.e., 16% to 32%), a 22% difference in strength cannot show statistical significance.…”

Section: Discussionmentioning

confidence: 99%

“…Our measurements allow us to link the mesoscale failure mechanisms, the defect distributions, and the fragmentation distributions. The understanding gained from linking the microstructure and fragmentation is used to provide insights into the ballistic performance of boron carbide from a recent paper by Sano et al…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The Effects of Microstructure and Confinement on the Compressive Fragmentation of an Advanced Ceramic

et al. 2014

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We investigate the rate-dependent compressive failure and fragmentation of a hot-pressed boron carbide, under both uniaxial and confined biaxial compression, using quantitative fragment analysis coupled with quantitative microstructural analysis. Two distinct fragmentation regimes are observed, one of which appears to be more sensitive to the microstructural length scales in the material, while the second is more sensitive to the structural character and boundary conditions of the compressed sample. The first regime, which we refer to as "microstructuredependent," appears to be associated with smaller fragments arising from the coalescence of fractures initiating from graphitic inclusions. This regime appears to become more dominant as the strain rate is increased and as the stress-state becomes more confined. The second regime generates larger fragments with the resulting fragment size distribution dependent on the specific structural mechanisms that are activated during macroscopic failure (e.g., buckling of local columns developed during the compression). The average fragment size in the latter regime appears to be reasonably predicted by current fragmentation models. This improved understanding of the effects of microstructure and confinement on fragmentation then provides new insights into prior ballistic studies involving boron carbide.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

“…Kimberley et al developed a scaling relationship linking compressive strength and flaw density (i.e.,

{normalσ}_{normalc} \propto {normalη}^{- 1 / 4}

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effects of Microstructure and Confinement on the Compressive Fragmentation of an Advanced Ceramic

et al. 2014

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Effects of yttria stabilized zirconia (3Y-TZP) percentages on the ZTA dynamic mechanical properties

Arab

Ahmad

2015

International Journal of Refractory Metals and Hard Materials

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Dynamic Compression Performance of Reaction Sintering SiC/B<sub>4</sub>C Composite

Gao

Hasigaowa

Sun

et al. 2020

MSF

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SiC/B4C composite was obtained using the reaction sintering method with Si infiltration, which exhibited excellent mechanical properties. The dynamic compressive response was investigated using a Split Hopkinson pressure bar at high strain rates ranging from 0.4×103 to 1.2×103 s-1. The results show that the dynamic strength of the SiC/B4C composite obtains a peak value at a strain rate of 1000/s, while its strain increased continuously with increasing strain rate. The dynamic loading mode of SiC/B4C composite exhibited three deformation regions, including an inelastic deformation region, rapid loading region and failure region. The dynamic failure mode of SiC/B4C composite depended upon the strain rate.

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High Strain Rate Performance of Pressureless Sintered Boron Carbide

Cited by 3 publications

References 15 publications

The Effects of Microstructure and Confinement on the Compressive Fragmentation of an Advanced Ceramic

The Effects of Microstructure and Confinement on the Compressive Fragmentation of an Advanced Ceramic

Effects of yttria stabilized zirconia (3Y-TZP) percentages on the ZTA dynamic mechanical properties

Dynamic Compression Performance of Reaction Sintering SiC/B<sub>4</sub>C Composite

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