Failure Waves and Their Effects on Penetration Mechanics in Glass and Ceramics

Bless, Stephan; Brar, N. S.

doi:10.1007/978-3-540-68408-4_3

Cited by 20 publications

(15 citation statements)

References 45 publications

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“…7; ahead of the failure front, the shear stress was related to the principal stress by the elastic relationship, but behind the failure front the shear stress relaxed to a value a little more than 20 kbar (2 GPa). Similar measurements have now been made on many other types of glass 14 …”

Section: Properties Of Fws Determined By Plate Impact Testssupporting

confidence: 64%

Failure Waves and their Possible Roles in Determining Penetration Resistance of Glass

Bless¹

2010

Int J Applied Ceramic Tech

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Section: Properties Of Fws Determined By Plate Impact Testssupporting

confidence: 64%

Failure Waves and their Possible Roles in Determining Penetration Resistance of Glass

Bless¹

2010

Int J Applied Ceramic Tech

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“…The decay of peak stress with distance will be approximately as r/R (where R is the impactor radius), from which the peak stress where the bundled radial cracks start is about 2 GPa. This is near the minimum stress necessary for failure waves (Bless and Brar 2007). Studies of planar and curved failure waves all show that the wave front breaks up into "fingers" (Bourne et al 1995;Strassburger et al 2005;Grinfeld et al 2007), and perhaps the spacing of the crack bundles arises from this instability.…”

Section: Interpretationsmentioning

confidence: 95%

Impact damage in layered glass

Bless

Chen

2009

Int J Fract

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High-velocity impact onto a layered glass target produces a very extensive damage pattern exhibiting many distinct morphologies. Material around the penetration cavity is finely comminuted. Under the arrested projectile, the glass is largely intact with spokelike fracture regions. Around the projectile cavity, needle fragments are formed; they are radial in outer layers and circumferential in inner layers. Extensive radial cracks occur in all layers, but the spacing and frequency of transverse fractures change in each layer. Damage from radial cracks also progresses from being hoop-stress-induced to flexural-induced through the depth of the target. Fan and dicing cracks occur near the periphery of the target. Mesoscale damage features include conventional mist and hackle markings indicating very fast cracks. The map of damage presented herein should be a valuable reference for attempts to model impact damage of glass.

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“…Their results are shown in figure 57; ahead of the failure front, the shear stress was related to the principal stress by the elastic relationship, but behind the failure front the shear stress relaxed to a value a little more than 20 kbar (2 GPa). Similar measurements have now been made on many other types of glass (Bless and Brar, 2007b). Several investigators have also photographed plane FW fronts.…”

Section: Properties Of Failure Waves Determined By Plate Impact Testsmentioning

confidence: 59%

A Study on the Feasibility of Creating a Web-Accessible Marine Mammal Sound Library Based upon the Collections at the Woods Hole Oceanographic Institution

Daher¹

2008

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, ARL-SR-0164 SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)10. SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTES ABSTRACTSince 1954, the Sagamore Army Materials Research Conferences has brought together scientists and engineers from government, industry, and academia for in-depth discussions of cutting edge materials technology issues of critical importance to the U.S. Army community. The 46th Sagamore Army Materials Research Conference continued this tradition with a focus on "Advances and Needs in Multi-Spectral Transparent Materials Technology." Held at the Harbourtowne Golf Resort and Conference Center, St. Michaels, MD, on May 9-12, 2005, the objective of this conference was to review the applications, requirements, and major technical barriers of multi-spectral transparent materials for sensor protection, ground and air vehicle ballistic protection, personnel protection, and infrastructure survivability. The conference proceedings, documented in this report, included presentation media along with selected papers and supporting content that highlight the performance and capabilities requirements of the embedded Army systems in Current and Future Forces. The multi-spectral transparent materials technology needs include transparent armor, phased array radar, displays, electromagnetic windows and domes, and polycrystalline lasers. The presentations focus on processing, characterization, property testing, and system requirements of advanced ceramic and polymer systems to enable the cost-effective manufacturing of high quality, reproducible materials for these applications. These proceedings demonstrate both the effective communication of critical technology needs within the industrial community as well as continued opportunities for advancement of these technologies for military applications. SUBJECT TERMS

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Failure Waves and Their Effects on Penetration Mechanics in Glass and Ceramics

Cited by 20 publications

References 45 publications

Failure Waves and their Possible Roles in Determining Penetration Resistance of Glass

Failure Waves and their Possible Roles in Determining Penetration Resistance of Glass

Impact damage in layered glass

A Study on the Feasibility of Creating a Web-Accessible Marine Mammal Sound Library Based upon the Collections at the Woods Hole Oceanographic Institution

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