Measurements of Compressive and Tensile Wave in a Shock Loaded Pyrex Glass

Yeshurun, Y.; Rosenberg, Gideon; Rosenberg, Z.

doi:10.1007/978-1-4613-2207-8_61

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…Yeshurun et al [7] tested Pyrex between 300 and 1300 m/s and observed no spall on impacts below the HEL and almost negligible spall strength above the HEL, which was found to be 7.8 GPa, similar to the value found by Cagnoux. The name Pyrex is, in this context, synonym of borosilicate glass manufactured by Corning.…”

Section: Introductionsupporting

confidence: 61%

Damage Threshold of Borosilicate Glass Under Plate Impact

Chocron

Barnette

Holmquist

et al. 2016

J. dynamic behavior mater.

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Symmetric plate-impact tests of borosilicate glass projectiles into borosilicate glass targets were performed at stress levels from 0.7 to 2 GPa (impact velocities from 116 to 351 m/s). As far as the authors know this range of velocities has not been explored in the literature previously. The tests used an ultra-high-speed camera to record shock and failure propagation. The velocity of the back of the target was also recorded with a photon Doppler velocimeter (PDV). The images clearly show the shock wave and its propagation at the speed expected. The reflected tensile wave is also apparent. What the authors interpret as the failure wave/front is clearly observed and appears at stress levels of 0.8 GPa (velocities as low as 130 m/s). The images apparently show failure nucleation sites that trail the shock wave. These seem to be closer to the shock wave for higher speeds. A possibility is that the defects open faster at higher impact velocity while at lower velocities they are still present but remain undetected. Interestingly, even though the failure wave is clearly seen, the PDV never detected the expected recompression wave. The reason might be that at these low impact velocities the recompression wave is too small to be seen and is lost in the noise. This, in the past, may have confused researchers by thinking that the failure wave was not present at these low impact velocities. This work also presents a new way to interpret the signals from the PDV. By letting part of the signal travel through the target and reflect on the impact side, it is possible to see the PDV signal decrease in intensity with time. This would be consistent with having damage in the interior of the specimen, something not straightforward to confirm through just high-speed photography.

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Section: Introductionsupporting

confidence: 61%

Damage Threshold of Borosilicate Glass Under Plate Impact

Chocron

Barnette

Holmquist

et al. 2016

J. dynamic behavior mater.

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show abstract

“…Rosenberg et al [191] concluded that the HEL marks the point at which cracks coalesce into a network. Borosilicate glass was shown to exhibit no loss of spall strength up to the HEL and then a substantial loss of shear strength when shocked above the HEL [192]. Soda-lime glass, on the other hand, showed a finite (though reduced) shear strength [193].…”

Section: Brittle Materials: Ceramics and Glassesmentioning

confidence: 99%

Review of experimental techniques for high rate deformation and shock studies

Field¹,

Walley²,

Proud³

et al. 2004

International Journal of Impact Engineering

656

296

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“…This threshold is determined by backsurface experiments described below. This level is lower than th at for soda-lime glass (6 GPa) or borosilicate (8 GPa) (Bourne & Rosenberg 1996a, b ;Yeshurun et al 1986). This interesting feature indicates t the measured dynamic compressive strength of the glass decreases as the density increases in accord with quasi-static measurements.…”

Section: R E Su Ltsmentioning

confidence: 73%