13th International Conference on Fracture June 16–21, 2013, Beijing, China -9- parameter, the peak values of the normalized dynamic SIFs are reduced. The numerical results imply that the maximum amplitudes of the normalized dynamic SIFs and the time instants, at which they occur, depend significantly on the values of the gradient parameters, the ratios of the thicknesses and the thermo-mechanical coupling. Figure 5. Normalized dynamic a) mode-I and b) mode-II SIFs for 0 1 / 5,10,15, 20 h h and 1 ln(0.5) gh Figure 6. Normalized dynamic a) mode-I and b) mode-II SIFs for 0, 0.133, 0.3 Figure 7. Normalized dynamic a) mode-I and b) mode-II SIFs for 0, 0.133, 0.3
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