Crack growth rate versus stress intensity

Fig. 10.4 Curve showing the predicted creep crack growth rate versus stress intensity factor based on the model of Hui and Riedel.40...

Figure 5 Fatigue crack growth rate versus stress intensity range.

Figure 4.29 Crack growth rate versus stress intensity factor for nonsensitized stainless steels in oxygenated pure water at 288°C [124].

Figure 12.14 Crack growth rate versus stress dependenceofthecrackgrowthratefromonthe intensity factor for (a) a silicon nitride [88] and stress intensity factor. At higher temperatures,...

Fig. 16 IGSCC crack growth rate versus corrosion potential (ECP) for sensitized Type 304 SS in high-temperature water as a function of solution conductivity (rc25) for given values for the degree of sensitization (15 C cm 2) and stress intensity (27.5 MPa.m1/ 2). The experimental data were measured for ambient temperature conductivities, K2S, ranging from 0.1 to 0.3 pS cm-1. The citations given in the figure are those presented in Ref. 43.

FIGURE 18.11 (a) Log-log plot of crack growth rate versus K, which is defined in the inset, (b) Cyclic-fatigue crack growth rates for several ceramics and metal alloys as a function of applied stress intensity range, AK. 

Let us return to consider the properties of the critical stress intensity for environmentally induced crack growth ( Tiscc)- The fact that /sTiscc for sensitized TVpe 304SS apparently depends on the applied potential can be gleaned from the data shown in Fig. 42. Fur ermore, both experiment and theory have established that the crack growth rate for A bcc solution conductivity, temperature, ECP, flow rate, and possible ion type (e.g., sulfate versus nitrate). The most comprehensive database for the effect of conductivity on crack growth rate is probably that of Kassner et al. [82] at the Argonne National Laboratory. Their data... 

Fig. 14 Plots of coupling current versus crack growth rate for ECLs ranging from 0.1 to 50 cm for constant stress intensity and for the other, constant conditions stated in the figure [54].

Figure 6. Crack growth rate, da/dN, versus stress intensity range, AK. Testing was performed at a frequency of 20 Hz and an R-ratio of 0.6.

Fig. 2.29 Fatigue crack growth rate (circles and line) versus stress intensity factor AK in annealed iron in humid air. Also shown are the striations width measurements [32, 33]...

Logarithmic crack growth rate per cycle, da/dN, versus logarithmic range of applied stress-intensity factor from cyciic-fatigue tests for unmodified epoxy and silica nanoparticle-modified epoxy (Courtesy J. Sohn Lee)... 

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