Although the six-ligament chiral structure has many unique properties, due to its special structure, stress concentration is prone defects. In addition, additive manufacturing also This paper studies effect of defects, which helpful for better application structure. Several new structures with random and concentrated defects were designed explore effects on in-plane dynamic properties. The stud...

Abstract A method for a coupled structural - Computational Fluid Dynamics (CFD) analysis of compressor rotor blade subjected to an ice impact scenario is investigated assess the related deformations from and fluid-dynamics perspective. On basis probabilistic approach, in total 50 scenarios are derived this study. In first step numerical model based on Finite Elements (FE) discussed, including s...

Metal baseball bats have been experimentally demonstrated to produce higher ball exit velocity (BEV) than wooden bats. In the United States, all bats are subject to BEV tests using hitting machines that rotate the bat in a horizontal plane. In this paper, a model of bat-ball impact was developed based on 3-D translational and rotational kinematics of a swing performed by high-level players. The...

One of the main objectives of aircraft and automotive manufacturers is related to improvement of the crash behaviour of lightweight structures. The absorbed energy is an important parameter for the development of the vehicle passive security concept. In present paper, the composite laminate of conical shell structures subjected to slip loading are studied by using finite element method. ANSYS/L...

0263-8223/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.compstruct.2012.03.038 ⇑ Corresponding author. Tel.: +1 540 231 6051; fax E-mail address: [email protected] (R.C. Batra). We analyze three-dimensional (3-D) deformations of soft body armor in the form of a clamped rectangular plate impacted at normal incidence by a projectile. Results have been computed by the finite elem...

The behaviour of an asphalt concrete structure subjected to severe loading, such as blast and impact loadings, is becoming critical for safety and anti-terrorist reasons. With the development of high-speed computational capabilities, it is possible to carry out the numerical simulation of an asphalt concrete structure subjected to blast or impact loading. In the simulation, the constitutive mod...

We use the boundary element method (BEM) to study transient plane strain deformations of water induced by a rigid hull impacting at normal incidence initially stationary water occupying a half space with the goal of finding the hydrodynamic pressure acting on the hull. Water is assumed to be incompressible and inviscid, and its deformations to have zero vorticity. Thus deformations of water are...

In modern warfare, anti-vehicular mine attack is one of the critical consideration in the design of an armored personnel vehicle. Nowadays, the use of computational tools is a common approach in vehicle design process for evaluating the vehicle and its occupant’s safety or protective levels. This paper presents a finite element analysis carried out on the underbelly of SIBMAS AFSV 6x6 armored v...