Application of the Depth-of-Penetration Test Methodology to Characterize Ceramics for Personnel Protection

Moynihan, Thomas J.; Chou, S. C.; Mihalcin, Audreyk L.

doi:10.21236/ada376698

Cited by 17 publications

(7 citation statements)

References 2 publications

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“…8 data is nearly as good if a linear relationship is used rather than the polynomial fit shown. When tested with the APM2 round at 841 m/s SiC‐B showed 6.7 mm penetration at an areal density of 12.6 kg/m 2 and no penetration at 16.8 kg/m 2 26 . The WC–Co core 993 simulant tested at 907 m/s was therefore a more aggressive test.…”

Section: Resultsmentioning

confidence: 95%

“…Depth‐of‐penetration (DOP) testing was conducted on all six materials, in accordance with the methodology proposed by Moynihan et al 26 . using 7.62 mm × 51 mm M993 (WC–Co core, New Lenox Machine, Dwight, IL) simulant shot at a velocity of 907±4 m/s at ceramic targets 100 mm round (five experimental materials supplied by Ceramatec, Inc., Salt Lake City, UT) or 100 mm square (SiC‐B supplied by ARL).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

High‐Toughness Silicon Carbide as Armor

Flinders¹,

Ray²,

Anderson³

et al. 2005

Journal of the American Ceramic Society

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Silicon carbide, with single‐edge precracked beam (SEPB) toughness greater than 7 MPa·m1/2, was made by hot‐pressing using Al–B–C (ABC) or Al–Y2O3 (YAG) as additives. The hardness of SiC processed with a liquid phase was always less than SiC densified without a liquid phase despite having a similar or finer grain size. With increasing Al content, the ABC system changed from trans‐ to intergranular fracture with a drop in hardness and a two‐ to threefold increase in SEPB toughness. Strength and Weibull modulus for materials processed with a liquid phase were higher than those of solid‐state densified SiC. Ballistic testing, however, did not show any improvement over SiC densified with B and C additives. Depth of penetration was controlled by hardness of the SiC‐based materials, while V50 values for 14.5 mm WC–Co cored projectiles were in the range of 720–750 m/s for all materials tested.

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Section: Resultsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

High‐Toughness Silicon Carbide as Armor

Flinders¹,

Ray²,

Anderson³

et al. 2005

Journal of the American Ceramic Society

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show abstract

“…The depth-of-penetration (DOP) test methodology [27] is used to evaluate the performance of the various ceramic materials and has been successfully used to characterize and rank armor ceramics for vehicle protection [33]. We first use the DOP tests to calibrate the bullet model.…”

Section: Bullet and Aluminum Modelsmentioning

confidence: 99%

Numerical simulation of ceramic composite armor subjected to ballistic impact

Krishnan¹,

Sockalingam²,

Bansal³

et al. 2010

Composites Part B: Engineering

191

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“…The ballistic properties of 45 mm diameter, 8 mm thick, and 76 mm diameter, 12 mm thick discs of the three RF compositions were evaluated by depth‐of‐penetration (DOP) test . Highest ballistic efficiencies η = 6.4 and η = 5.3 were obtained for compositions 3 ((2Mg–2Si)–4B 4 C) and 1 ((50FA–25MoO 3 –25Al)–50B 4 C), respectively.…”

Section: Application Of Reactive Forging For Fabrication Of Structuramentioning

confidence: 99%

Reactive Forging − Pressure Assisted Thermal Explosion Mode of SHS for Processing Dense In Situ Composites and Structural Parts: A Review

Готман

Gutmanas

2018

Adv Eng Mater

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Over the last decades, there has been a decisive shift from basic science to applied research that brought about the development of a number of unconventional combustion processes that allow for simultaneous synthesis and consolidation of otherwise difficult-to-process high temperature materials. External pressure application during thermal explosion (TE) mode of self-propagating high-temperature synthesis (SHS) can produce dense products provided the combination temperature and pressure are sufficient for consolidation. In the developed TE-based reactive forging (RF) method, a self-sustained reaction is ignited by rapid heat transfer from press die and rams, and a moderate consolidation pressure is applied when the combustion product still contains a sufficient amount of liquid or very soft phase. Plastic flow of the product results in filling the shape of the die thus producing a near-net-shape part. Reactive forging (RF) is especially efficient in combination with the developed short distance infiltration (SDI) approach based on the presence of a low melting phase component (e.g., Al, Mg, Ti-Ni eutectics) in the non-dense reactant blend that is squeezed into the pores under the applied pressure thereby increasing the interparticle contact area and enhancing exothermic heat release rate. Compared to traditional reactive melt infiltration, SDI has the advantage of the considerably shorter infiltration distances (μm vs. mm-cm). Close temperature monitoring during RF and RF/SDI processing provides a deeper insight into the SHS reaction mechanisms. The "heat sink" action of the pressure die after TE results in rapid cooling of the consolidated products and correspondingly fine microstructures and high mechanical properties. Examples of successful application of the RF/SDI processing of homogeneous and functionally graded in situ composites based on binary (Al 2 O 3 , TiB 2 , TiC, TiN) and ternary (MgAl 2 O 4 , Ti 3 SiC 2 , Ti 3 AlC 2 ) ceramics, as well as intermetallic-ceramic and metal-ceramic interpenetrating phase composites are described. Nanostructuring of reactant blends results in lower SHS ignition temperatures, and thus can be utilized for two-stage ignition of multi-component composite materials and structures with tunable ignition delay. Pressure assisted SHS is a "green," cost-effective, and thus perspective manufacturing route of nearnet-shape structural parts. Examples of successful application of RF and RF-SDI approach to fabrication of ceramic matrix-diamond grinding wheels, light armor tiles and high melting temperature nozzles are presented.

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Application of the Depth-of-Penetration Test Methodology to Characterize Ceramics for Personnel Protection

Cited by 17 publications

References 2 publications

High‐Toughness Silicon Carbide as Armor

High‐Toughness Silicon Carbide as Armor

Numerical simulation of ceramic composite armor subjected to ballistic impact

Reactive Forging − Pressure Assisted Thermal Explosion Mode of SHS for Processing Dense In Situ Composites and Structural Parts: A Review

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