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For each analysis, the tcnsde strains wcnicalcxiIatcd from the <br /> 1 adjacent grid points in the surface:against e dCforrned spacing betwe <br /> gainst the initial grid spacing. A characteristic curve <br /> maximum tensile strains versus ratio of void width (4) to controlled fill thickness r- <br /> j <br /> developed from the analyses' results This curve is pscnted in Figure 4. <br /> 2.0 <br /> �.a <br /> a <br /> a\ <br /> 1.6 <br /> 1.4 <br /> m m <br /> a 1.2 O <br /> ►a' j 1.0 <br /> o, Q.8 <br /> r <br /> x <br /> Q.6 • O <br /> 0.4O/ <br /> - <br /> 02 O _ <br /> �'PS �Oi <br /> o.a <br /> 0•0 0.2 0.4 0.6 0.8 _. 1.0 1.2 <br /> Rofio of Void Wed#h fo Controlled F11 Thickness (Lr/T) <br /> Figure 4 Maximum tensile strain versus ratio of void width/controlled `c e <br /> on 0.9m x 0.9m.x1.8 6') void <br /> 3_S <br /> LEGEND <br /> 3.00 LEONARD t OF—AM FLEXURE TESTS D <br /> O TSCHMOTARIOFF t DtRECT TENSION TESTS I <br /> yt O WES DATA(O/RECT TENSION TESTS 7 <br /> 2 <br /> o�c 20 <br /> N <br /> W <br /> _J <br /> N <br /> 2 <br /> W <br /> I,O <br /> 0 <br /> Q <br /> 91 1 fill, <br /> D <br /> t to too 1000 <br /> PLASTICITY INXX. % <br /> Figure 5 Tensile strain versus plasticity index <br /> (After Gilbert and Murphy, 1987) <br /> I506-Vancouver,Canada-Gcosynthetics''93 <br />