This work presents a computational material model of flexible woven fabric for finite element impact analysis and simulation. The model is implemented in the nonlinear dynamic explicit finite element code LSDYNA. The material model derivation utilizes the micro-mechanical approach and the homogenization technique usually used in composite material models. The model accounts for reorientation of...

In order to study the internal temperature changes and heat transfer phenomena of a model during external warming, simulation was conducted. The thermal analysis simulated by using ANSYS/LSDYNA software, warhead in actual process were setting conditions on surface model, boundary obtained from experiments, relevant conclusions drawn.

This study is the first part of a project that aims to assess and model impact-induced energy release (IIER). The present work investigates failure mode brittle commercial pyrophoric alloy samples during Taylor impact tests. A series ferrocerium specimens were shot against tungsten carbide anvils, with velocities ranging between 60 140 m/s. Total Lagrangian SPH was employed simulate deformation...

This paper presents a procedure to optimize a conceptual ship side structure from a crashworthiness point of view. As an example, this procedure is presented for a chemical or product tanker. A particle swarm optimization algorithm is used for the procedure. The classification society compliance of the conceptual design is checked through service loads that are applied to the ship’s hull girder...

In this paper, the dynamic characteristics of projectile penetrating concrete target at high speed are studied. The mechanism high-speed penetration into plate is analyzed theoretically. Through ANSYS-LSDYNA numerical modeling, a model established, and suitable grid divided. calculation deflection, kinetic energy loss, stress distribution overload carried out. results show that software simulat...

Abstract The rotational angular velocity of fragments under the driver explosive products makes constantly flip during trajectory, which has a huge effect on decay fragments. In order to more accurately calculate residual flight, it is necessary study Based paper target system, an experimental method for measuring proposed. By using ANSYS/LSDYNA finite element software, preformed explosion stud...

Based on the thickness of common ice layer in Heilongjiang Basin, explosions featuring different methods firing, thicknesses layer, and distances between explosive are hereby simulated using ANSYS/LSDYNA software. The most suitable blasting scheme after field test verification is obtained, it concluded through comparison that central ignition produces best effect largest volume radius when expl...

Mine earthquake, as an underground disaster that occurs frequently, has a great impact on coal mine roadway and support. The stability analysis of the bolt support in under different earthquake magnitudes is key issue to be solved urgently mining fields. This paper attempted simulate occurrence state with explosive blasting process verified it actual microseismic monitoring data. ANSYS/LSDYNA s...

The aim of the work was to investigate numerical simulations correlation with experimental behaviour steel ball high velocity impact onto a 2 × twill woven carbon composite laminate. set up consisted pressurised gas-gun able shot projectiles two different plate layup configurations plates made same material fabric. Subsequently, experiments were replicated using LSDYNA explicit finite element a...