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-iI =For each analysis, the tensile strains were calculated from the deformed spacing betwl <br /> I ' adjacent grid points in the surface against the Initial grid spacing. A characteristic curve of <br /> maximum tensile strains versus ratio of void width (4) to controlled fill thickness r— <br /> developed from the analyses' results. This curve is pt=nted in Figure 4. <br /> 2.0 <br /> 1.8 b <br /> `0 1.6 <br /> 1.4 <br /> y o 1.2 0 <br /> C <br /> 1.0 <br /> W 0.8 <br /> E 0.6 0 <br /> X C <br /> 0.4 �0 <br /> 0.2 0 <br /> 0.0 <br /> 0.0 0.2 0.4 0.6 0.8__. 1.0 1.2 <br /> Ratio of Void Width to Controlled FII Thickness (Lr/T) <br /> Figure 4 Maximum tensile strain versus ratio of void width/controlled fill thicknc <br /> on 0.9m x 0.9m x 1.8m (3'x3'x6') void <br /> 3.5 <br /> LEGEND <br /> TT <br /> 3.0 p LEONARD ( 13EASA FLEXURE TESTSr <br /> O TSCHEBOTARIOFF ( DIRECT TENSION TESTS I <br /> 0 WES DATA (DIRECT TENSION TESTS l <br /> z <br /> 20 <br /> a- <br /> N <br /> W <br /> _J <br /> N <br /> 2 <br /> W <br /> 1.0 <br /> O <br /> p 0 <br /> 0 <br /> I to loo 1000 <br /> PLASTICITY INDEX,X <br /> Figure 5 Tensile strain versus plasticity index <br /> (After Gilbert and Murphy, 1987) <br /> 1506- Vancouver,Canada-Geosynthetics*93 <br />