ballistic impact behaviour of a tempered bainitic steel

BALLISTIC PERFORMANCE OF A QUENCHED AND

steel directly determines the ballistic performance and perforation mode. Many studies on the ballistic impact behaviour of the steels revealed that relationship exists between hardness of the steel matrix and ballistic performance of the steel after dynamic impact. In addition, toughness is anotherBallistic Penetration of Steel Platesstrain behaviour of the different tempers was characterised by quasi-static tension tests and was found to vary considerably with temper in regards to strength, strain hardening and ductility. Ballistic impact tests using 7.62 mm APM2 bullets were then carried out, and the ballistic limit velocities were obtained for all tempers. In the

BALLISTIC PENETRATION OF HARDENED STEEL PLATES

BALLISTIC PENETRATION OF HARDENED STEEL PLATES Deniz, Tansel M.Sc., Department of Mechanical Engineering Supervisor : Prof. Dr. R. Orhan Yldrm August 2010, 113 pages Ballistic testing is a vital part of the armor design. However, it is impossible to test every condition and it is necessary to limit the number of tests to cut huge costs.Ballistic Impact Behaviour of SiC Fibre Reinforced ballistic impact behaviour of a tempered bainitic steelBallistic impact testing was carried out using the DERA low speed gas gun facility. This facility allows projectiles to be fired at speeds of between 5m/s and 300m/s, and thus simulates the impact from ingested runway debris and birdstrike [3]. The projectiles were 9.5mm diameter steel ball bearings, with a nominal weight of 3.5g.Steel for Armour IspatGuruIt is also noticed that boron, carbon, manganese, and nickel elements play a main role to improve ballistic properties of armour steel. Microstructures . The ballistic performance of armour steel depends on the matrix having tempered martensitic or bainitic structure.

Assessment of Three Finite Element Approaches for

Jan 30, 2015 · The ballistic impact was numerically modeled for AISI 450 steel struck by a 17.3 g ogive nose WC-Co projectile using Abaqus/Explicit. The model was validated using experimental results and data for different projectiles and metal targets. The Abaqus ductile-shear, local principal strain to fracture, and absorbed strain energy at failure criteria were investigated.BALLISTIC PERFORMANCE OF A QUENCHED AND steel directly determines the ballistic performance and perforation mode. Many studies on the ballistic impact behaviour of the steels revealed that relationship exists between hardness of the steel matrix and ballistic performance of the steel after dynamic impact. In addition, toughness is anotherBallistic Impact Behaviour of a Tempered Bainitic Steel ballistic impact behaviour of a tempered bainitic steelFor armour steel, the matrix having martensitic/bainitic tempered martensitic-bainitic structure determines the ballistic performance, which is usually achieved after application of austenisation ballistic impact behaviour of a tempered bainitic steel

Ballistic Impact Behaviour of a Tempered Bainitic Steel ballistic impact behaviour of a tempered bainitic steel

In this study, occurence of failure after the interaction between an armour piercing 7.62 mm caliber projectile and a tempered bainitic steel has been investigated. The shot was performed at zero degree with a projectile velocity of 840 m/s. AfterBallistic Performance of a Quenched and Tempered Steel ballistic impact behaviour of a tempered bainitic steelInvestigation on the ballistic impact behaviour of . ballistic impact behaviour of a tempered bainitic steel occurence of failure after the interaction between an armour piercing 7.62 mm caliber projectile and a tempered bainitic steel has been ballistic impact behaviour of a tempered bainitic steelBallistic impact performance of metallic targets ballistic impact behaviour of a tempered bainitic steelAug 01, 2012 · Hakan Atapek and Karagaz studied the penetration behavior of an armor piercing projectile into a tempered bainitic steel . Ozsahin and Tolun studied the effect of plasma spray surface coatings on typical aluminum alloys on the ballistic resistance experimentally. They observed that the coated plates had higher ballistic resistance than the uncoated plates.

Comparison of Ballistic Impact Behavior of Carbon Fiber ballistic impact behaviour of a tempered bainitic steel

In this paper, ballistic impact behavior of carbon fiber/epoxy composite and steel metal structures with a spherical ball projectile is numerically evaluated. ABAQUS/Explicit software is used to predict the structural response and the damage progression and absorbed energy in the target plates. The predicted damage mechanisms, velocitytime profile and energy absorption threshold of the two ballistic impact behaviour of a tempered bainitic steelEffect of Microstructure and Segregation of Elements on ballistic impact behaviour of a tempered bainitic steelJul 30, 2016 · The impact toughness, microstructure and distribution of elements over the thickness of a plate from high-strength low-carbon bainitic steel are studied with the use of the methods of EPMA and EBSD. The causes of low impact toughness of the high-strength steel are analyzed.Effect of tempering conditions on adiabatic shear banding ballistic impact behaviour of a tempered bainitic steelThe actual ballistic impact test results revealed the lower sensitivity of ASB formation in the austempered steel than in the tempered steel, which corresponded well to the higher critical strain for ASB formation in the dynamic compressive test using a

Effect of tempering conditions on adiabatic shear banding ballistic impact behaviour of a tempered bainitic steel

The actual ballistic impact test results revealed the lower sensitivity of ASB formation in the austempered steel than in the tempered steel, which corresponded well to the higher critical strain ballistic impact behaviour of a tempered bainitic steelEffect of tempering time on the ballistic performance of a ballistic impact behaviour of a tempered bainitic steelCharpy impact toughness is an important parameter which contributes to the ballistic performance (Jena et al., 2010). So it is aimed in this study to explore the effect of increased tempering time on mechanical properties including Charpy impact values and ballistic performance of DMR-1700 steel.Effect of tempering time on the ballistic performance of a ballistic impact behaviour of a tempered bainitic steelDikshit et al., 1995 Dikshit S.N, Kutumbrao V.V, Sundararajan G. The influence of plate hardness on the ballistic penetration of thick steel plates. International Journal of Impact Engineering. 1995; 48:293-320 [ Links ] Dikshit, 1998 Dikshit S.N. Ballistic behaviour of tempered steel

Effect of tempering time on the ballistic performance of a ballistic impact behaviour of a tempered bainitic steel

Feb 01, 2016 · Maweja and Stumpf, 2008a, Maweja and Stumpf, 2008b found that the microstructure and the ratio of yield to tensile strength had a significant influence on the ballistic behaviour of armour steels. In a recent study on the ballistic behaviour of different high strength steels by Borvik, Dey, and Clausen (2009) , it was demonstrated that there is ballistic impact behaviour of a tempered bainitic steelEffect of tempering time on the ballistic performance of a ballistic impact behaviour of a tempered bainitic steelFeb 01, 2016 · The steel is subjected to tempering at 300 °C for 2, 24 and 48 h. A marginal variation in strength and hardness is observed with increase in tempering time, whereas ductility and Charpy impact values are found to be decreasing.Effects of direct-quenching and tempering on the ballistic impact behaviour of a tempered bainitic steelJul 24, 2020 · Ultra-low carbon Ti containing bainite steel was prepared by multipoint dispersion supplying Ti wire in the melt, followed by controlled rolling, rela

Faculté Polytechnique Simulation of ballistic impacts in ballistic impact behaviour of a tempered bainitic steel

target when the projectile velocity is lower than the ballistic limit [30]. This concept will appear later again and further detailed information on it will be given. Fig. 1. Standard test ballistic room[31] So the main aim of this study is to create a first approach model to simulate the impact of small arms projectiles in steel plates. A ballistic impact behaviour of a tempered bainitic steelFaculté Polytechnique Simulation of ballistic impacts in ballistic impact behaviour of a tempered bainitic steeltarget when the projectile velocity is lower than the ballistic limit [30]. This concept will appear later again and further detailed information on it will be given. Fig. 1. Standard test ballistic room[31] So the main aim of this study is to create a first approach model to simulate the impact of small arms projectiles in steel plates. A ballistic impact behaviour of a tempered bainitic steelFormation of Adiabatic Shear Bands in a Tempered Steel ballistic impact behaviour of a tempered bainitic steelKaragöz: Ballistic impact behaviour of a tempered bainitic steel against 7.62 mm armor piercing projectile, Defence Science Journal 61 (2011), pp. 8187 Google Scholar; 7 . Karagöz, . H. Atapek, A. Yilmaz: Microstructural and fractographical studies on quenched and tempered armor steels, Materials Testing 52 (2010), pp. 316322 Google ballistic impact behaviour of a tempered bainitic steel

IOP Conference Series: Materials Science and

the multi-hole armor steel plates have the equivalent or better ballistic performance than the high hardness armor steel plates with the same thickness, but the weight can be reduced by 40.85%. The multi-hole armor steel plates are very suitable as a cost-effective means for the protection of light armored vehicles.Materials Behaviour under ImpactMaterials Behaviour under Impact. Institute of Shock Physics. Imperial College London. 2. Presentation Outline. ballistic impact behaviour of a tempered bainitic steel quenched and tempered steel. 70 mm. Ballistic Tests on Armour Steel. Institute of Shock Physics. Imperial College London. 7. 0 500 1000 1500 2000 ballistic impact behaviour of a tempered bainitic steel Bainitic steel. Institute of Shock Physics Imperial College London 29.Metallographic Examinations on Quenched and Tempered ballistic impact behaviour of a tempered bainitic steelAtapek H, Karagöz (2011) Ballistic impact behaviour of a tempered bainitic steel against 7.62 mm armor piercing projectile. Def Sci J 61:8187 CrossRef Google Scholar 5.

Microstructural Analysis of Ballistic Tests on Welded ballistic impact behaviour of a tempered bainitic steel

May 15, 2013 · The deformation and fracture behavior of welded joints made from quenched and tempered steel closely conforming to AISI 4340 were investigated. Due to weld thermal cycles and under matching fillers, the welded armor steel joints showed poor ballistic performance compared with the base metal (BM). The problems encountered in the past were reduced by depositing a soft austenitic stainless-steel ballistic impact behaviour of a tempered bainitic steelProcessing, Mechanical Properties, and Ballistic Impact ballistic impact behaviour of a tempered bainitic steel(ADI) from ballistic impact. The resistance to penetration is determined with an average velocity with a 50% probability for complete penetration, the V-50 ballistic limit. The responses of the ADI material to impact are shown by observations of penetration modes, microstructural changes, and The Mechanical Metallurgy of Armour SteelsAt impact speeds below 2 kms-1, the response of an armour is primarily determined by material strength and toughness and projectile type [5]. Plastic work is therefore the key determinant of the ballistic performance of armour with the resistance of penetration armour steels initially increasing with increasing flow stress. However, a complex

US8871040B2 - High ballistic strength martensitic armour ballistic impact behaviour of a tempered bainitic steel

The invention relates to an air hardenable high-hardness steel for armoring applications, such as armor plate for use in light armored vehicles and body armor, and having a high level of ballistic performance relative to its plate thickness. In particular, the invention concerns a high ballistic strength martensitic armor steel which, in an air cooled and untempered condition, has a strength ballistic impact behaviour of a tempered bainitic steelWO2010146535A2 - High ballistic strength martensitic ballistic impact behaviour of a tempered bainitic steelThe invention relates to an air hardenable high-hardness steel for armouring applications, such as armour plate for use in light armoured vehicles and body armour, and having a high level of ballistic performance relative to its plate thickness. In particular, the invention concerns a high ballistic strength martensitic armour steel which, in an air cooled and untempered condition, has a ballistic impact behaviour of a tempered bainitic steelWO2010146535A2 - High ballistic strength martensitic ballistic impact behaviour of a tempered bainitic steelThe invention relates to an air hardenable high-hardness steel for armouring applications, such as armour plate for use in light armoured vehicles and body armour, and having a high level of ballistic performance relative to its plate thickness. In particular, the invention concerns a high ballistic strength martensitic armour steel which, in an air cooled and untempered condition, has a ballistic impact behaviour of a tempered bainitic steel

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