Hydrodynamics

Publications

Numerical Simulation of Impact on Ceramic Armour System

This paper explores the hydrodynamic effects of high-speed projectile impact on ceramic/aramid armor systems using Autodyn simulations. The study compares SPH and Lagrangian models to capture crack development, energy transfer, and conoid fracture in various thickness configurations. Results reveal the critical influence of geometry and material response under pressure-driven failure scenarios.

Simulation of a Detonation Chamber Test Case

Daniel Hilding

This study simulates the hydrodynamic interaction between explosive gases and a detonation chamber structure using LS-DYNA’s Eulerian and fluid-structure modeling tools. It demonstrates how detonation geometry and wave propagation influence pressure distributions, structural stress, and energy dissipation. The work supports the development of safer, optimized containment systems for explosive ordnance disposal.

Ballistic Simulation of Impact on Composite Laminates

M.A.G. Silva, C. Cismasiu, C.G. Chiorean

This paper reports on the numerical simulation of ballistic impact on composite laminates using a hydrocode to model non-linear transient dynamics. The authors use the AUTODYN-3D code, which is based on explicit finite difference, finite volume, and finite element techniques, to analyze the impact and predict ballistic performance.

The Interpretation of Separation Mechanism of Ridge-Cut Explosive Bolt Using Simulation

Y. J. Lee, D. J. Kim

This paper describes an interpretation processor created to simulate the hydrodynamics of explosive bolt separation. The processor uses the AUTODYN software to model material failure and separation under transient dynamic loading, demonstrating that the principal stress is the fundamental cause of failure. The research proves that this simulation approach is an accurate and effective alternative to expensive and time-consuming physical experiments.

Constituitive Model for Damaged Borosilicate Glass

This paper details a method to determine the constitutive properties of damaged borosilicate glass by compressing it within a steel sleeve and measuring its response. It employs analytical and numerical models to interpret the data, providing a set of constants for elastic and plastic behavior.