Unstable behavior of the dynamic fracture toughness
Author: Smirnov, V.
Source: Technical Physics, Volume 51, Number 11, November 2006 , pp. 1528-1530(3)
Publisher: MAIK Nauka/Interperiodica
Abstract:It is shown that the dynamic fracture toughness of materials substantially depends on the history of loading; this determines instability in the behaviour of this quantity under shock-wave loading. It is found that the minimal value of the dynamic fracture toughness can amount to 50% of the corresponding static value. In engineering practice, this quantity can be regarded as the initial critical parameter, which must be taken into account while choosing materials working under pulsed loading.
Document Type: Research Article
Affiliations: Email: smirnov@VS13866.spb.edu
Publication date: November 1, 2006