1− d 4π Gad /Gco (7) If the tion at c >pro9t2e.i1nμimnt,earfdaceetrsiwmeernetnalobt rpirtetlseenfati,lGuraed c=haGracoct(ethriestsiiclicoaf fracture energy is isotropic), resulting in deflec- silica. However, because of the large difference in at adhesive fracture energies...
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