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Cyclic stress testing with environmental load,<br />
principles<br />
Reinforced Double Cantilever Beam, RDCB<br />
Crack-<br />
Length<br />
Reinforcements bonded on,<br />
prevents yielding<br />
With constant<br />
deformation<br />
Crack growth rate<br />
Log da/dN (mm/cycle)<br />
"Wet"<br />
"Dry"<br />
Gc, static<br />
Adhesive<br />
fracture<br />
energy<br />
Gth<br />
Log Gmax<br />
Loadcycles<br />
Load measures => crack length<br />
Maximum value of strain energy<br />
release rate during a fatigue cycle<br />
Date: 2004-01-13 • Page: 30 • Hydro Aluminium
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