Article
Engineering, Multidisciplinary
S. Thompson, F. Teixeira-Dias, M. Paulino, A. Hamilton
Summary: Understanding how ballistic materials respond to projectiles is crucial for making informed decisions in the design process of protective armour systems. This study proposes a unique solution using Generative Adversarial Networks (GANs) to generate new ballistic samples and avoid costly destructive testing. The trained GAN networks successfully produced accurate ballistic curves and predicted key design parameters with high precision.
DEFENCE TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Francisco Javier Ramirez-Gil, Emilio Carlos Nelli Silva, Wilfredo Montealegre-Rubio
Summary: This study explores the tradeoff between lightweight and ballistic resistance in designing ballistic protection systems for the transportation market by achieving weight reduction of steel plates through distributed holes. Two design approaches, parametric cylindrical hole patterns and topology optimization for hole patterns, were proposed and tested for equivalency in experimental results.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Lei Chen, Yu Zhang, Xiaodi Xue, Bingxu Wang, Jing Yang, Zhaoxia Zhang, Na Tyrer, Gary C. Barber
Summary: This research investigated the effects of welding current and welding time on the shearing strength of resistance spot-welded joints of low carbon steel and stainless steel plates. The findings suggest that specific welding parameters can result in the highest strength, and the diameter of welded joints and nuggets increases with increasing welding current and welding time.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Civil
Prabhani Ranaweera, M. R. Bambach, Dakshitha Weerasinghe, Damith Mohotti
Summary: A comprehensive comparison between monolithic and tri-metallic steel-titanium-aluminium armour subjected to nonrigid projectile impact is presented. The study revealed that the tri-metallic target showed similar ballistic performances to the monolithic sample, and even provided superior behind-armour trauma performance.
THIN-WALLED STRUCTURES
(2023)
Article
Chemistry, Physical
Evaristo Santamaria Ferraro, Marina Seidl, Tom De Vuyst, Norbert Faderl
Summary: The study investigated the terminal ballistics effects of intermetallic reactive materials fragments by performing high-velocity impact tests of mixed rare earth fragments on armor steel plates at various speeds. An energy-based model was developed and experiments showed that impact induced energy release was observed in all experiments involving mixed rare earth fragments.
Article
Materials Science, Multidisciplinary
Yunfei Deng, Benzhen Yang, Gang Wei, Huiru Jia, Huapeng Wu
Summary: The ballistic resistance behavior of double-layer steel plates with different material combinations is studied experimentally and numerically. The study finds that the order of layers in the double-layer plates has a significant impact on the ballistic resistance, with ogive-nosed projectiles being more sensitive than blunt-nosed projectiles. The deformation of projectiles and the loss of mass and length are also influenced by the nose shape and velocity of projectiles, as well as the layer order of the double-layer plates.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Beatriz Fernandez Silva, Oliver Levano Blanch, Kam Sagoo, Martin Jackson
Summary: Titanium alloys are important for armour designers due to their high ballistic mass efficiency. However, their high cost limits their use in military land-based vehicles. This study investigates the effect of different processing routes on the microstructure, texture, ballistic performance, and deformation modes of Ti-6Al-4V armour plate. The rolled plate exhibited the best performance due to a strong transverse-type texture perpendicular to the projectile direction.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Wi-Geol Seo, Jin-Yoo Suh, Abhishek Singh, Jae-Hyeok Shim, Hansang Lee, Keunbong Yoo, Shi-Hoon Choi
Summary: This study investigated the microstructural development of the heat-affected zone in P92 heat-resistant steel during creep deformation in cross-weld specimen. It found that the FGHAZ II region, defined as a major change in microstructure during creep deformation, played a crucial role in cavity formation and fracture.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
Y. Vayig, Z. Rosenberg
Summary: We investigate the perforation of high strength Weldox steel plates by blunt projectiles. The experimental data for the ballistic limit velocities of these plates are found to be inconsistent with numerical simulation results. By employing a suitable failure model that considers the failure strains at pure shear states, we successfully eliminate this inconsistency. We also point out the inherent difficulties in simulating shear bands due to uncertainties in estimating the temperatures within these narrow bands.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Qibo Zhang, Ye Yuan, Chengjian Zhang, Yufeng Zhang, Pengwan Chen
Summary: This study presents an analysis of the ballistic response of Q235 steel/6061-T6 aluminum bilayer plates fabricated via explosive welding. The experimental results showed that the welded bilayer plate exhibited enhanced ballistic resistance compared to unbonded plates, and the simulation results suggested that this enhancement was attributed to the welded interface. The welded interface allowed for effective stress attenuation within the steel layer and enforced a uniform indentation on the central region of the aluminum substrate, resulting in greater damage tolerance, energy dissipation, and absorption.
MATERIALS & DESIGN
(2023)
Article
Engineering, Mechanical
Benjamin Stavnar Elveli, Ole Vestrum, Knut Ove Hauge, Torodd Berstad, Tore Borvik, Vegard Aune
Summary: This study evaluates the effect of complex, partially confined detonations on thin steel plates with realistic pre-formed defects. It is found that target plates with pre-cut circular holes show better fracture resistance under blast loading compared to plates with initial ballistic impact.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Engineering, Manufacturing
S. Naveen Kumar, V. Balasubramanian, S. Malarvizhi, A. Hafeezur Rahman, V. Balaguru
Summary: In this study, Ultra-high Hard Armor (UHA) steel is welded with Rolled Homogenous Armor (RHA) steels using Gas Metal Arc Welding (GMAW) process with different fillers. The ballistic resistance of the weld metal is evaluated, and three modes of failure are identified. The results show that the joint fabricated with Austenitic Stainless Steel (ASS) electrodes exhibits superior ballistic performance due to the absence of wear debris. The presence of austenite phase in the ASS weldment contributes to its better ballistic resistance compared to other fillers.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Branko Savic, Aleksandar Cabrilo
Summary: The study examined the projectile penetration resistance of armor steel weldments at different heat inputs, finding that the heat-affected zone of the weldment with 1.29 kJ/mm input had higher ballistic resistance compared to the one with 1.55 kJ/mm input. This indicates the importance of optimizing heat input for armor steel welding to ensure proper ballistic protection.
Article
Nanoscience & Nanotechnology
Johny Varghese, Koteswararao V. Rajulapati, K. Bhanu Sankara Rao, S. D. Meshram, G. Madhusudhan Reddy
Summary: This study investigates the microstructure and mechanical properties of Indian RAFM steel during friction stir welding. The results show that the welding process leads to changes in microstructure and mechanical properties, which can be restored through post weld normalising and tempering treatment. The tensile behavior of the material is influenced by different strengthening mechanisms and the angle of grain boundaries in the stir zone.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Coatings & Films
Bo Zhang, Huaming Wang, Shuquan Zhang, Bei He
Summary: The study investigated the cracking susceptibility, microstructures, and wear resistance of coatings with different dilution rates by altering the processing parameters. It was found that the dilution effect of the eutectoid steel substrate increased with the increase of laser beam power, leading to composition deviation of coatings. Microhardness of the coatings increased with the dilution rate but excessive dilution resulted in severe cracking defects. The optimized cladding coating with a dilution rate of about 48% exhibited improved microhardness and wear performance due to increased carbon content.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Aerospace
M. Quatmann, N. Aswini, H. -G. Reimerdes, N. K. Gupta
AEROSPACE SCIENCE AND TECHNOLOGY
(2013)
Article
Engineering, Mechanical
Bidyapati Mishra, P. K. Jena, B. Ramakrishna, V. Madhu, T. B. Bhat, N. K. Gupta
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2012)
Article
Engineering, Mechanical
M. Klaus, H. -G. Reimerdes, N. K. Gupta
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2012)
Article
Engineering, Mechanical
M. A. Iqbal, P. K. Gupta, V. S. Deore, S. K. Tak, G. Tiwari, N. K. Gupta
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2012)
Article
Engineering, Mechanical
M. A. Iqbal, S. H. Khan, R. Ansari, N. K. Gupta
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2013)
Article
Engineering, Mechanical
N. K. Singh, E. Cadoni, M. K. Singha, N. K. Gupta
JOURNAL OF ENGINEERING MECHANICS
(2013)
Article
Engineering, Mechanical
M. A. Iqbal, A. Diwakar, A. Rajput, N. K. Gupta
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2012)
Article
Engineering, Civil
P. K. Gupta, N. K. Gupta
THIN-WALLED STRUCTURES
(2013)
Proceedings Paper
Materials Science, Multidisciplinary
R. Velmurugan, G. Balaganesan, N. K. Gupta
ADVANCES IN ENGINEERING PLASTICITY XI
(2013)
Proceedings Paper
Materials Science, Multidisciplinary
P. K. Gupta, M. A. Iqbal, G. Tiwari, N. K. Gupta
ADVANCES IN ENGINEERING PLASTICITY XI
(2013)
Proceedings Paper
Materials Science, Multidisciplinary
Ankit Sahai, Rahul Swarup Sharma, K. HansRaj, N. K. Gupta
ADVANCES IN MATERIALS AND PROCESSING: CHALLENGES AND OPPORTUNITIES
(2012)
Proceedings Paper
Materials Science, Multidisciplinary
Nilamber K. Singh, Maloy K. Singha, Ezio Cadoni, Narinder K. Gupta
ADVANCES IN MATERIALS AND PROCESSING: CHALLENGES AND OPPORTUNITIES
(2012)
Proceedings Paper
Engineering, Mechanical
Nilamber K. Singh, Ezio Cadoni, Maloy K. Singha, Narinder K. Gupta
PERFORMANCE, PROTECTION AND STRENGTHENING OF STRUCTURES UNDER EXTREME LOADING
(2011)
Proceedings Paper
Engineering, Mechanical
Sripad S. Tokekar, Maloy K. Singha, Narinder K. Gupta
PERFORMANCE, PROTECTION AND STRENGTHENING OF STRUCTURES UNDER EXTREME LOADING
(2011)
