Results 11 to 20 of about 75,589 (197)
Adaptation of performed ballistic motion [PDF]
Adaptation of ballistic motion demands a technique that can make required adjustments in anticipation of flight periods when only some physically consistent changes are possible. This article describes a numerical procedure that adjusts a physically consistent motion to fulfill new adaptation requirements expressed in kinematic and dynamic constraints.
Adnan Sulejmanpasic, Jovan Popovic
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Ultra-high molecular weight polyethylene fibre is popularly used in military for ballistic protection owing to its low density but high modulus and high tenacity.
Yanyan Chu +4 more
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An internal state variable (ISV)-based constitutive model has been used within a Lagrangian finite element analysis (FEA) framework to simulate ballistic impact of monolithic rolled homogenous armor (RHA) steel plates by RHA steel spheres and cylinders ...
Luke Peterson +3 more
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Ballistic performance of a lightweight nacre-inspired armour panel – a numerical study
This paper provides a numerical investigation on the ballistic performance of ceramic composite armour panels with porous architectures inspired by nacre from mollusc shells.
Abdallah Ghazlan +5 more
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Impact response and ballistic performances of graphitic foams [PDF]
The demand for low weight structures that can achieve different structural, thermal and safety results is increasing in multiple engineering applications. Graphitic foam, due to its low density, relatively easy machine tooling, stiffness and homogeneity can be a good choice for sandwich panel filling. Moreover, in spite of its brittle general behaviour,
JANSZEN, GERARDUS, P. Nettuno
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Ballistic Behavior of Bioinspired Nacre-like Composites
In this paper, the ballistic performance of a multilayered composite inspired by the structural characteristics of nacre is numerically investigated using finite element (FE) simulations.
Danny G. Chan-Colli +6 more
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Polyimide aerogels for ballistic impact protection
The ballistic performance of edge-clamped monolithic polyimide aerogel blocks (12 mm thickness) has been studied through a series of impact tests using a helium-filled gas gun connected to a vacuum chamber and a spherical steel projectile (approximately ...
Sadeq Malakooti +9 more
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Ballistic performance of an FRP helmet-head system
Abstract The purpose of this paper is to make an assessment on the performance of an FRP helmet-head system subjected to ballistic impact. Firstly, an FE model for human head is developed in which it mainly consists of scalp, skull, meanings, cerebrospinal fluid, brain tissue, falx, tentorium, face and neck.
Y. J. Liu, S. H. Xin, H. M. Wen
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Comparison of Ballistic-Coefficient-Based Estimation Algorithms for Precise Tracking of a Re-Entry Vehicle and its Impact Point Prediction [PDF]
This paper studies the problem of tracking a re-entry vehicle (RV) in order to predict its impact point on the ground. Re-entry target dynamics combined with super-high speed has a complex non-linearity due to ballistic coefficient variations.
Kyung Rok Moon +2 more
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Performance Evaluation of Ballistic Silicon Nanowire Transistors with Atomic-basis Dispersion Relations [PDF]
In this letter, we explore the bandstructure effects on the performance of ballistic silicon nanowire transistors (SNWTs). The energy dispersion relations for silicon nanowires are evaluated with an sp3d5s* tight binding model.
Ghosh, Avik +4 more
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