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i I For each analysis, the tensile strains were calculated from the deformed spacing betwe <br /> ! adjacent grid points in the surface against the initial grid spacing. A characteristic curve of t <br /> maximum tensile strains versus ratio of void width (Ly) to controlled fill thickness r—, <br /> developed from the analyses' results. This curve is presented in Figure 4. <br /> 2.0 <br /> 1.8 d : <br /> v 1.6 <br /> 1.4 <br /> m m <br /> G 1.2 O <br /> 1.0 <br /> E Cn <br /> � m 0.8 <br /> 0.6 O <br /> `X c i <br /> ° 0.4 /O <br /> 0.2 O0.0 - <br /> o.oS r0 <br /> 0.0 0.2 0.4 0.6 0.8_. 1.0 1.2 <br /> Rotio of Void Width to Controlled FII Thickness (LD,/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 <br /> 3.5 <br /> LEGEND <br /> 3.0 p LEONARD (BEAM FLEXURE TESTS D <br /> O TSCHMOTARtOFF (DIRECT TENSION TESTS I <br /> O WES DATA(DIRECT TENSION TESTS 1 <br /> i <br /> 20 <br /> f- <br /> N <br /> W <br /> _J <br /> N <br /> Z <br /> W <br /> 1.0 <br /> O <br /> 0 <br /> I 10 100 1000 <br /> PLASTICtTY INDEX.X <br /> Figure 5 Tensile strain versus plasticity index <br /> (After Gilbert and Murphy, 1987) <br /> f 1506-Vancouvcr,Canada-Geosynthetics'93 <br />