PSI - Issue 2_B

Marina Davydova et al. / Procedia Structural Integrity 2 (2016) 1936–1943 Author name / Structural Integrity Procedia 00 (2016) 000–000

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Fig. 1. (a) fragment size distribution for sample with porosity 2%; (b) fragment size distribution for sample with porosity 30%.

The fitting of big fragment mass distribution to power law is not so good - R 2 >0.94. The power law exponent of the fragment size distribution was found to depend on loading intensity (specific strain energy) and material structure (porosity). Thus, for ceramics of low porosity 2% (Fig.1a) an increase of the specific strain energy by a factor of 3.35 leads to inessential increase in the power law exponent of the fragment size distribution S D from 1.98 to 2.20 (by a factor of 0.22), whereas the exponent for ceramics of high porosity 30% (Fig.1b) increases from с 2.03 to 3.19