Experimental and simulation investigations on perforation of titanium alloy plates against armor-piercing projectile at oblique impacts

Analytical and Experimental Investigations on Influential Parameters of Superplastic Forming of Titanium Based Workpieces

Analytical and Numerical Consideration of Projectile Density Effect on Its Penetration Ability in Alumina Armor

In this paper, penetration of high velocity impact of 4340 steel and tungsten carbide projectiles with specific shapes in to ceramic armor that includes 10 mm alumina (95%) is considered analytically and simulated with Ls-Dyna software. Bernoulli equation used to consider the penetration velocity in ceramics, shows that the penetration is better and easier by increasing projectile density. The ...

Numerical and Experimental Investigations on Springback of U-bending of DP600 Steel Alloy Sheet

The most prominent feature of sheet material forming process is an elastic recovery phenomenon during unloading which leads to springback and side wall curl. Therefore evaluation of springback and side wall curl is mandatory for production of precise products. In this paper, the effects of some parameters such as friction coefficient, sheet thickness, yield strength of sheet and blank-holder fo...

Perforation of 5083-H116 Aluminum Armor Plates with Ogive-nose Rods and 7.62mm APM2 Bullets

We conducted an experimental and analytical study to understand the mechanisms and dominant parameters for ogive-nose rods and 7.62mm APM2 bullets that perforate 5083-H116 aluminum armor plates. The 20-mm-diameter, 95-mm-long, ogive-nose, 197g, hard steel rods were launched with a gas gun to striking velocities between 230-370m/s. The 7.62-mm-diameter, 10.7g, APM2 bullet consists of a brass jac...

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...