Determination of the pressing parameters of porous bodies by a high explosive charge through a metal plate

1982 ◽  
Vol 18 (1) ◽  
pp. 120-122 ◽  
Author(s):  
A. A. Shtertser
Keyword(s):  
Explosive Charge ◽  
High Explosive ◽  
Metal Plate ◽  
Porous Bodies

The effects of strength models in numerical study of metal plate destruction by contact explosive charge

2018 ◽  
Vol 26 (8) ◽  
pp. 661-670
Author(s):  
Tuan Truong Anh ◽  
Thom Do Van ◽  
Dat Pham Tien ◽  
Nguyen Dinh Duc
Keyword(s):  
Explosive Charge ◽  
Numerical Study ◽  
Metal Plate ◽  
Strength Models

Transformation of Structure in Carbon Steel Specimen under Loading by Mach Stem, Formed in Preliminary Compressed High Explosive Charge TG-40

2011 ◽  
Vol 673 ◽  
pp. 89-94 ◽  
Author(s):  
Ivan A. Bataev ◽  
Igor A. Balagansky ◽  
Anatoly Bataev ◽  
Kazuyuki Hokamoto
Keyword(s):  
Carbon Steel ◽  
Explosive Charge ◽  
High Explosive ◽  
Steel Specimen ◽  
Explosive Loading ◽  
Metallographic Analysis ◽  
Heterogeneous Structure ◽  
Mach Stem ◽  
Localized Deformation ◽  
Current Loading

A structure of a carbon steel specimen after explosive loading is investigated. The loading was executed by Mach stem, formed in high explosive charge that was preliminary compressed by advanced wave in ceramic bar. In the original condition the specimen had a typical for low carbon steel ferrite-pearlite structure. Metallographic analysis has shown that during the process of the explosive loading the following structural changes took place: formation of numerous deformation twins in both ferrite grains and pearlite colonies (i.e. in two-phase structure); formation of extended bands of localized deformation, which are not crystallographically connected with the original ferrite-pearlite structure; fine grains formation in zones of severe plastic flow. The size of the ferrite grains is by an order of magnitude less than the original grains size. According to the authors’ opinion, above-noted structural peculiarities demonstrate that loading conditions achieved in the current loading scheme differ from common. The phenomenon of non-typical twinning in heterogeneous structure (pearlite) indirectly evidences that extremely high stresses and strain rates took place in the specimen during the loading.

scholarly journals Modeling Blast Loading on Buried Reinforced Concrete Structures with Zapotec

2008 ◽  
Vol 15 (2) ◽  
pp. 137-146 ◽  
Author(s):  
Greg C. Bessette
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Explosive Charge ◽  
High Explosive ◽  
Concrete Structures ◽  
Blast Loading ◽  
Reinforced Concrete Structures ◽  
Reinforced Concrete Structure ◽  
Solution Approach ◽  
Coupling Algorithm

A coupled Euler-Lagrange solution approach is used to model the response of a buried reinforced concrete structure subjected to a close-in detonation of a high explosive charge. The coupling algorithm is discussed along with a set of benchmark calculations involving detonations in clay and sand.

Determination of the flexural stiffness of thin plates from small deflection measurements using optical holography

1982 ◽  
Vol 17 (1) ◽  
pp. 53-61 ◽  
Author(s):  
M J Marchant ◽  
M B Snell
Keyword(s):  
Numerical Method ◽  
Accurate Determination ◽  
Metal Plate ◽  
Thin Plates ◽  
Flexural Stiffness ◽  
Interference Fringes ◽  
Small Deflection ◽  
Stiffness Properties ◽  
Good Agreement

A technique is presented for accurate determination of the flexural stiffness of thin plates using optical holography. Measurements of the interference fringes on thin rhombic plates in anticlastic bending are used to calculate the components of curvature by a simple numerical method Control experiments on a metal plate give good agreement with the results of small deflection bending theory. The method appears ideally suited to the measurement of anisotropic flexural stiffness properties.

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