Specimen crack stress intensity control loop for test device
Method and apparatus for determining the time dependency of the length of a fissure in a test specimen during a fracture test
Pipeline monitoring system Patent #: 4452087
ApplicationNo. 06/810628 filed on 12/19/1985
US Classes:73/799Specimen cracking or crack propagation
ExaminersPrimary: Levy, Stuart S.
Assistant: Raevis, Robert
Attorney, Agent or Firm
International ClassG01N 27/20 (20060101)
AbstractA method is provided for measuring crack growth within a material utilizing reversing d.c. potential measurements across a preformed crack. Preferably, the material is representative of structural components of interest and the material is located within the aggressive environment of such components. The measured values are plotted versus distance to obtain intercept values. These intercept values correspond to the depth of the crack at the time the measured values were obtained.