Ballistic limit evaluation of advanced shielding using numerical simulations

Effect of Bullet Shape and H/a Ratio on Ballistic Impact Behaviour of FRP Composite Plate: A Numerical Study

“…A uniform cell size of 0.5 mm is used in both I and J-directions at impact region which constitute 10 mm x 10 mm. The material properties of Kevlar/epoxy and steel 4340 have been taken from literature [11][12] as shown in Table 1. Failure initiation criteria and growth of damage in composite is based on the combination of material stress and strain.…”

A kernel free particle‐finite element method for hypervelocity impact simulation

“…Continuum methods [8] employ either an Eulerian hydrodynamic [9,10] or a Lagrangian finite element [11] 3 Graduate research assistant 4 Professor, corresponding author, phone: (512) 471-3064, email: epfahren@mail.utexas.edu approach, or some Arbitrary Lagrangian-Eulerian (ALE) based generalization of these techniques [12,13]. A large majority of particle codes employ a smooth particle hydrodynamics (SPH) technique [14,15,16], although some alternative particle based methods have been proposed [17].…”

“…A large majority of particle codes employ a smooth particle hydrodynamics (SPH) technique [14,15,16], although some alternative particle based methods have been proposed [17]. Some disadvantages of pure continuum or pure particle based methods [18] have motivated the development of mixed continuum-particle formulations [4,19,20]. The most widely used mixed method is a coupled particle-finite element technique [19].…”

An ellipsoidal particle–finite element method for hypervelocity impact simulation

“…Although both continuum and particle based methods have demonstrated excellent results in a range of practical applications, these methods are not without problems. As a result some recent research has formulated coupled particle-element 3 Graduate student 4 Professor, corresponding author, phone: (512) 471-3064, email: epfahren@mail.utexas.edu [5] or hybrid particle-element [6] methods, aimed at avoiding certain disadvantages of the use of pure continuum based methods or pure particle based methods in hypervelocity impact applications [7]. The present paper develops a generalized hybrid method, extending the work of Fahrenthold and Horban [6], presenting for the first time a combined particle-element formulation based on a nonspherical particle geometry.…”