This article is cited in 1 paper

Relationship between spall characteristics and the dimension of fractal fracture structures

B. K. Barakhtin^a, G. G. Savenkov<sup>b

a</sup> Prometei Central Research Institute of Structural Materials, St. Petersburg, 191015, Russia
^b Poisk Research Institute, Murino, 188662, Leningrad Region, Russia

Abstract: The effect of the fractality of a fracture surface and spall contour on the characteristics [fracture time (strength) and spall strength] of the loaded material is studied. It is shown that an increase in the fractal dimensions of the spall contour leads to an increase in the material strength parameter in the tensile wave and spall strength, whereas an increase in the fractal dimension of the fracture surface leads to a decrease in the spall strength. As an example, the spall strength is calculated taking into account the fractality of the fracture surface for Sp. 28 steel.

Keywords: mesodefect, fractal, spall, fracture time, spall strength.

UDC: 669.017:539.375

Received: 08.04.2008
Accepted: 07.11.2008

 English version: Journal of Applied Mechanics and Technical Physics, 2009, 50:6, 965–971

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