Crack growth measurements

Typical results with such crack growth measurements are shown in Figure 3. In this example a notched specimen was used, with the first gold strip located immediately below the notch, and the phE recorded. The voltage is steady between... 

Fig. 1 Evaluation of the elastic-plastic crack propagation energy rate, J, from incremental crack growth measurements.

Wei, R. P., and Brazill, R. L., An Assessment of A-C and D-C Potential Systems for Monitoring Fatigue Crack Growth, in Fatigue Crack Growth Measurement and Data Analysis, ASTM STP 738, S. J. Hudak, Jr., and R. J. Bucci, eds., American Society for Testing and Materials, Philadelphia, PA (1981), 103-119. 

Multiple-Specimen Method A major problem often encountered in the above described single-specimen method is that the crack growth measured from a side-view may not... 

H. Nakajima, T. Shoji, M. Kikuchi, H. Nitsuma, M. Shindo, Detecting acoustic emission during cyclic crack growth in simulated BWR environments, in S.J. Hudak, R.J. Bucci (Eds.), Fatigue Crack Growth Measurement and Data Analysis, ASTM STP 738, ASTM International, West Conshohocken, PA, 1981, pp. 139—162. 

Crack growth measurements using the split tear test-piece provide further experimental evidence that tearing energy is a measure of true crack growth... 

Fatigue Crack Growth Measurement and Data Analysis, ASTM STP 738, S. J. Hudak and R. J. Bucci, Eds., ASTM International, West Conshohocken, PA, 1981. 

Azemi, S. and Bijarimi, M. P. (2004). Cyclic crack growth measurement using split-tear test piece. J. Rubb. Res. 

Figure 4.33 shows the rate of slow, time-dependent subcritical crack growth, measured using the S5rmmetric four-point flexure specimen geometry, along the TiN-Si02 interface in the multilayer structure as a function... 

To obtain accurate crack growth measurement of the V-Kj curves, it has been recently argued that a correction factor should be introduced in the conventional expression of Kj [4. Thus, the following more realistic expression of Ki was used ... 

Wachnicki, C. R., Radon, J.C. Fatigue crack growth measurement in a CSM composite using compliance and Moire techniques. Composites, 15 (1984) 3, p.211-216... 

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