Experimental and numerical study of influence of incidence angle of shock wave created by explosive charge on the steel plate

Abstract

Abstract. This paper presents experimental and numerical studies on influence of an incidence angle of the shock wave on a steel plate. The problem of interaction between the wave front and a barrier is important from the point of view of protection the crew of armored vehicles. One way of remedying the harmful effects of impacts of the shock wave is the reflection wave of the barrier set at an angle to the face of the wave. The article presents the numerical and experimental approach to the subject. The numerical part presents four models in which the plate was set at angles 0• , 15• , 30• , 45• . In each case, the plate was loaded by a wave formed after the explosion 2 kg of TNT. In the experimental part the results are presented from an experiment in which the wave was formed from 2 kg TNT detonation at a distance of 0.4 m in parallel to the steel plate.

Modelling and analysis of the vehicle underbody and the occupants subjected to a shallow-buried-mine blast impulse

“…The keyword *BOUNDARY_NON_REFLECTING was used to define the non-reflecting boundary and to simulate the infinite air domain. 30 The target plate was defined as Lagrangian, the soil, the air and the mine were defined as Eulerian, and then the keyword *CONSTRANT_LAGRANGE_IN_SOLID was used to define the Lagrangian–Eulerian fluid–structure interaction. The number of elements in the IIM model is only 2.8% of those in the ALE method.…”

Analysis of the State of Stress in the Hull of the Ship Kormoran II Loaded with Non-Contact Mine Explosion

“…The main one is R.H. Cole [2], whose writings form the basis of most studies on the subject. The problem is also described by other authors [1,3,4,5,6,8,12]. Table 1 gives mathematical descriptions of the pressure wave described by RH Cole [2], T.L.…”

Identification of Factors Affecting the Strength of Joints in Steel-Titanium-Aluminium Composites in Monotonic Peel Tests

“…In the indirect method, energy generated as a result of the combustion of an explosive mixture is transferred from the point of detonation to elements to be joined through an intermediate centre (medium) such as water or an appropriate mechanism. High costs of the indirect method of explosion welding are responsible for the fact that the direct method that has found practical applications [3][4][5]. In the direct method, an explosive remains in direct contact with elements to be joined and is placed on the surface of an overlay material.…”