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For each analysis, the tensile strains w=.is a mdat�ed from the deformed spacing <br /> adjacent grid points in the surface a inst the inikial '� <br /> l� grad spacing. A characteristic curve _.- <br /> maximum tensile strains versus ratio of void width (4). to controlled fill thickness r- <br /> developed from the analyses' results. This curve is presented in Figure 4. <br /> 2.0 <br /> o <br /> 1 ' <br /> .6 <br /> 1.4 <br /> m m <br /> 0 1.2 0 <br /> �— 1.0 <br /> Ell <br /> 0-8 <br /> E <br /> c 0..6 _ <br /> 0 0.4 0/ <br /> Oil 0/ - <br /> a:a <br /> i <br /> 0.0 0.2 0.4 0.6 0.8_-. 1.0 1.2 <br /> Ratio of Void Wid#h to Controlled Flt Thickness (Lr/T) <br /> Figure 4 Maximum tensile strain versus ratio of void width/controlled fill thickne <br /> on 0.9m x 0.9m.x 1.8m (3'x3'x6') void -u v <br /> 3.5 <br /> LEGEND <br /> 3.0FA 10"M(BEAU FXOME TESTSCIESOTARIOFF t DIRECT TENSIGH-TESTS 1 <br /> S DATA(DIRECT TENSION TESTS 7 <br /> i <br /> 2.0 <br /> N <br /> !J <br /> J <br /> N <br /> = I <br /> W i <br /> O <br /> O .Q O <br /> O <br /> 1 ' t0 too 1000 <br /> PLASTICITY INDM % <br /> Figure 5 Tensile strain versus plasticity index <br /> (After Gilbert and Murphy, 1987) <br /> 1506-Vancouver,Canada-dcosynthuics'93 <br />