J.L Jones et al 1 Acta Materialia 55(2007)5538-5548 543 20 0.2 02 0002040.6081012141.618 000.2040.608101.2 1.61 000204060.81012141618 20 1.2 1.0 20406081.012141.618 D00.20406081.012141.618 D00.2040.60810 141618 D00 0.60810 141.618 000.2040.608101.2141.618 000204060.81012141618 0002040.6081012141.618 000.2040.608101.2141.6 0D0.204060810121416 IMm X[mm] IMm Fig. 6.( Color) Filled contours(in steps of l x 10)represent the measured I ll lattice strain(2111) in the crack front actor of Ki=0.71 MPa mas a function of spatial position (X, y and in-plane azimuth angle, n Crack face pe osi ionagd loading with a stress intensity tation are illustrated in ch map as a bolded line at Y=1.0. Overlaid contour lines, plotted at every 2 x 10, represent the projected deviat (E-) calculated by the finite0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 X [mm] Y [mm] -6E-4 -5E-4 -4E-4 -3E-4 -2E-4 -1E-4 0 1E-4 2E-4 3E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0o X [mm] X [mm] Y [mm] Y [mm] Y [mm] Y [mm] 0 2E-4 0 -2E-4 4E-4 2E-4 -4E-4 6E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 120o 0 0 2E-4 -2E-4 4E-4 -4E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 105o -2E-4 0 2E-4 2E-4 4E-4 0 6E-4 -4E-4 4E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 150o 0 2E-4 2E-4 4E-4 -2E-4 4E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 165o -2E-4 0 2E-4 2E-4 4E-4 0 -4E-4 6E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 135o 0 0 2E-4 -2E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 90o 2E-4 0 0 -2E-4 4E-4 -4E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 75o 2E-4 2E-4 0 0 -2E-4 4E-4 -4E-4 6E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 60o 2E-4 0 2E-4 -2E-4 4E-4 0 -4E-4 6E-4 8E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 45o 2E-4 0 2E-4 -2E-4 4E-4 0 6E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 30o 2E-4 0 2E-4 4E-4 -2E-4 6E-4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 15o X [mm] Fig. 6. (Color) Filled contours (in steps of 1 · 104 ) represent the measured 1 1 1 lattice strain (e111) in the crack front during loading with a stress intensity factor of KI = 0.71 MPa m1/2 as a function of spatial position (X, Y) and in-plane azimuth angle, g. Crack face position and orientation are illustrated in each map as a bolded line at Y = 1.0. Overlaid contour lines, plotted at every 2 · 104 , represent the projected deviatoric strain ðe n *Þ calculated by the finite element model. J.L. Jones et al. / Acta Materialia 55 (2007) 5538–5548 5543