Ws. Han et al., STATISTICAL FORMULATION AND EXPERIMENTAL-DETERMINATION OF GROWTH-RATEOF MICROMETER CRACKS UNDER IMPACT LOADING, International journal of solids and structures, 34(22), 1997, pp. 2905-2925
A new statistical formulation and a relevant experimental approach to
determine the growth rate of microcracks were proposed. The method con
sists of experimental measurements and a statistical analysis' on the
basis of the conservation law of number density of microcracks in phas
e space. As a practical example of the method, the growth rate of micr
ocracks appearing in an aluminium alloy subjected to planar impact loa
ding was determined to be ca. 10 mu m/mu s under a tensile stress of 1
470 MPa and load duration between 0.26 mu s and 0.80 mu s. (C) 1997 El
sevier Science Ltd.