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For each analysis; the tensile strains were cal firom the dehormed spacing 6etwt <br /> 1,. adjacent grid points in the surface against the initial grid spacing. A characteristic curve qift <br /> maximum tensile strains versus ratio of void width OL.) to controlled fill thickness <br /> developed from the analyses' results. This curve is presented in Figure 4. <br /> 2.0 <br /> 1.8 b , <br /> o 1.6 ' <br /> 1.4 <br /> w <br /> y o 1.2 0 <br /> Im 1.0 <br /> m 0.8 <br /> E L 0.6 _ <br /> 0.4 <br /> 0.2 �O <br /> 0-0 <br /> ,o <br /> 0.0 0.2 0.4 0.6 0.8-- 1.0 1.2 <br /> Ratio of Void Width to Controlled FII Thickness (VT) <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 0 LEpp�0 ( SEAM FLEXURE TESTS D <br /> O TSCHEHOTARIOFF t DIRECT TENSION TESTS 1 <br /> 0 WES DATA (DIRECT TENSION TESTS1 <br /> i <br /> 20 <br /> F- <br /> W <br /> _J <br /> N <br /> 2 <br /> W <br /> 0 <br /> 0 <br /> t to loo 1000 <br /> PLASTICITY IND M % <br /> Figure 5 Tensile strain versus plasticity index <br /> (After Gilbert and Murphy, 1987) <br /> 1506- Vancouver.Canada-C,cosynthctics'93 <br />