Shock Behavior Analysis for Certain Alloy Steels

Bibu, Marius; Cristea, Sorin; Deac, Cristian; Gligor, Alina

doi:10.15660/auofmte.2016-2.3241

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“…The literature presents a wide range of research and results obtained from analyzes on the behavior of materials subjected to shock stresses. The analyzed materials are homogeneous metallic or non-metallic [1][2][3][4][5][6], composite or fabric of different types of natural or artificial fibers [7][8][9][10][11]20]. Also, the penetrator may be a solid of various geometry [12,13], it may be a shock wave propagated through a gaseous [14,15], liquid [16,17] or solid [12] medium, a molten state, a plasma state material [18], or a laser wave [19,20].…”

Section: Introductionmentioning

confidence: 99%

“…If by their research some specialists approach the theoretical formalizations [1,14], most investigations start to penetrate into the intimacy of the phenomena that occur under shock stresses. Homogeneous materials for impact protection with a solid penetrator [1,2], granular material [11] and more and more frequently composite, laminated or sintered material [12] are studied. Titanium-based composites [3], reinforced concrete [4] and layered [4,7,15,20] are analyzed for impact with a solid penetrator.…”

Section: Introductionmentioning

confidence: 99%

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Study of structural changes in metallic materials subjected to shock stress

Cristea

Bibu

2018

MATEC Web Conf.

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Behavior analysis of materials subjected to extreme demands remains a topical field for a wide range of engineering applications. The materials in discussion are in increasing numbers composites or layered materials, but homogeneous materials are not neglected either. The paper addresses the topic of a homogeneous metallic material subjected to shock loads. Two different thicknesses of alloy steel of known composition were used. Thicknesses used were of 4 mm and 6 mm respectively. After the loads were applied, the samples were cut in the direction of planes passing through the impact point; the microdurity was measured in the crosssection obtained and the medium microdurity areas were plotted. The obtained results allowed the identification of particularities in material behavior, in relation with the thickness, for the same values of the shock energy load and same shape of the penetrator.

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