Multiple cracking strain distribution

The strain distribution in the matrix at the final stage of multiple cracking is linear, with a value of zero at the crack surface, going to values of mu and mu/2atthe centres of blocks with length of 2A and x, respectively. 

Figure 4.27 Multiple cracking according to the ACK model [I] (a) crack spacing (x and 2x spacings) and bridging fibres and (b) strain distributions in fibres and matrix.

Figure 4.40 Strain distribution in the matrix and fibres in multiple cracked composite with 2x crack spacing during loading (a) and after unloading (b) (after Keer [73]).

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