13th International Conference on Fracture June 16–21, 2013, Beijing, China -8- Figure 5. a) 1D distribution of the intrinsic dissipation along the specimen b) Optical micrograph of the middle part of the specimen c) Optical micrographs at two places of the specimen surface (noted (1) and (2)) at ∆σ/2 = 69.4 MPa - 107 cycles
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