Abstract
Under displacement loading, brittle material softens due to the coalescence of statistically distributed microcracks. Microcracks propagate, coalesce, and eventually reach a stable configuration. The situation is simulated in the present work by a collinear microcrack configuration with the attention focused on the expected crack length. The results indicate that the expected crack length increases by higher microcrack density, less microcrack randomness, and a larger specimen size (scale effect).
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