PSI - Issue 6

A. Martemyanov et al. / Procedia Structural Integrity 6 (2017) 292–300 Martemyanov Andrey et al / Structural Integrity Procedia 00 (2017) 000 – 000

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Figure1. Results of the anisotropy evaluation of mechanical properties from the first CABG measurement in the open trunk (on the left) and the results of the fracture crack control by repeated CABG measurement in the post-fracture column (right). Shear wave velocities propagated in orthogonal directions comparison gives a sense of the TIV-anisotropy. It can be expressed in terms of Thomsen parameters (fig. 1). According to this analysis upper part of the J0 layer and the lower part of J1 layer have significant texture anisotropy. To fully describe elastic medium with TIV symmetry it is necessary to determine 5 values. Three of them can be calculated from log data:

To find remaining two Schoenberg and co-authors [4] proposed ANNIE model and then MANNIE model, where suggests following:

Constants A and B should be restored from laboratory experiments. Elastic-strength property profiles calibration carried out using the results of core study. Core samples analysis showed that Bajen horizon rocks have a complex lithological composition, represented by minerals of the silica group, calcite, dolomite, pyrite and clay minerals. In addition, this material characterize by