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20- <br /> 0 DUCTILE FAILURES <br /> O {RITTLE FAILURES <br /> ZrC(PREDCTEM ® 1#0 FAILURE <br /> ib <br /> E <br /> E Girc <br /> z <br /> u, 0 0 <br /> 12 we <br /> J <br /> dl O <br /> 2 <br /> ul <br /> O <br /> 7.2 N/103 <br /> _ moi, �0 1/E.�►21 <br /> e , <br /> 101 10= 101 lo, log 10' 107 <br /> TIME 1hours) <br /> Figure 6. Stress Rupture Line for :4xisymmetric Loading of a PE Geomembrane, <br /> at 23°C, Derived with Elevated Temperature Testing <br /> (after Berg and Bonaparte, 1993) <br /> - ZD <br /> TEMPERATURE-Zr C <br /> • <br /> E <br /> F3 <br /> 10 A& CP ®• <br /> a+E' • <br /> ® 61Og ••d1: • 0.3WOURS <br /> a® • 1 ® 12 HOURS <br /> o a�p • <br /> ISS HOURS <br /> Z S.7{ <br /> • 7M HOURS <br /> 3 . 4 4 M I M M 1- 1.9 QZ R 12W HOURS <br /> 1.9 L p S0 FEARS WREWCTEDI <br /> 0 <br /> 0 1.® 1.0 g q 10 Is ZO <br /> (l <br /> 2 .9 4 STRAIN(7.) <br /> Figure 7. 50-Year Isochronous Curve for Axisymmetric Loading of a PE Geomembrane, <br /> Derived with Elevated Temperature Testing (after Berg and Bonaparte, 1993) <br /> 1452-Vancouver,Canada-Geosyndwics'93 <br />