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i <br /> } , For each analysis, the tensile strains wen c aladaW from the deformed spacing betw, <br /> ! ' ^adjacent grid-points in the surface against the initisd grid spacing. A characteristic curve or <br /> maximum tensile strains versus ratio of void width (4) to controlled fill thickness f-- <br /> developed from the analyses' results. This curve is pirsented in Figure 4. <br /> �.o <br /> d <br /> 0 V.6 <br /> N " t'..4 <br /> m m j <br /> Tn o 1 i�2 O <br /> 1 <br /> E v' 0'8 <br /> 0J6 0i <br /> 0.14 <br /> 0.2 �O - <br /> �O <br /> 0.0 <br /> 1 10.0 0.2 0.4 0.6 0.8__. 1.0 1.2 <br /> Ratio of Void Width to Controlled F11 Thickness (LY/T) <br /> Figure 4 *aucimum tensile strain versus ratio of void width/controlled fill thiekitc <br /> on 0.9m x 0.9m x 1.8m (3'x3'x6') void <br /> 3.s <br /> LEGEND <br /> 3.0 A tFOHARD t BEAU FLOO RE TESTS 1 <br /> O TS04EBOTARIO'FF t DIRECT TENSION TESTS t <br /> O WES DATA (DIRECT TENSION TESTS? <br /> Zo <br /> W <br /> _J <br /> N <br /> 2 <br /> W <br /> t.0 _ <br /> O <br /> ® O <br /> O <br /> I ' to too 1000 <br /> PIASTICtTY INDEX 7 <br /> Figure 5 Tensile strain versus plasticity index <br /> (After Gilbert and Murphy, 198 <br /> 1506- Vancouver.Canada-Goosyntiledes"93 <br />