نتایج جستجو برای: projectile penetration
تعداد نتایج: 38636 فیلتر نتایج به سال:
The level of debris in Earth orbit presents an increasing risk. Active removal, involving capture and deorbit larger items, has been identified as important controlling future population growth. One concept for capturing is a harpoon, with low post-penetration residual velocity being key design requirement. Aluminium sandwich panels are common structural components on typical spacecraft consequ...
A coupled level set and Particle-In-Cell method is presented to treat the penetration problems. The coupled method has the advantages of level set method and Particle-In-Cell method, and the basic idea is that the important computation region such as the large deformation region where more particles are added for calculation, while the continuous transport method is used in the other regions. T...
Abstract This paper takes the 35mm armor-piercing projectile as research object, and uses ANSYS LS-DYNA dynamic analysis platform to simulate process of penetrating armored steel plate under different rotation speeds by using Johnson-Cook constitutive model. The results show that speed has a certain influence on penetration performance projectile: will have effects contact stress target in late...
In the present paper, the problem of low velocity impact of plates made from different configurations of ceramic, aluminum, steel and composite (S-glass polyester) is analyzed numerically using Abaqus finite element software. The projectile is assumed to be a rigid body with a hemispherical head. Also, for ceramic layers, Holmquist constitutive model, for aluminum and steel layers, Johnson Coo...
A meshfree method and (the related) a specified crack growth algorithm are used to simulate plugging fracture during high-speed impacts. In particular, we are simulating ballistic penetration of a steel plate, which is a ductile failure process involving projectile and target collision, contact, and subsequent projectile penetration companied plugging fracture inside steel plate. We have develo...
Ballistic performance, at effective strain rates of (10–10 s ), for polymeric dicyclopentadiene (pDCPD) was compared with two epoxy resin/diamine systems with comparable glass transition temperatures. The high rate response was characterized in terms of a projectile penetration kinetic energy, KE50, which describes the projectile kinetic energy at a velocity with a 50% probability of sample pen...
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