2024年6月24日 · 5.1 Fatigue crack growth rate expressed as a function of crack-tip stress-intensity factor range, d a /d N versus Δ K, characterizes a material's resistance to stable crack extension under cyclic loading.

This standard is issued under the fixed designation E647; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

This standard is issued under the fixed designation E647; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.

2023年11月2日 · This standard is issued under the ®xed designation E647; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

2024年10月22日 · The ASTM E647 is the standard test method for crack growth rate measurement and precise calculation of parameters such as the Paris law constants (C and m) or the da/dN against the K relationship. The growth of …

This standard is issued under the fixed designation E 647; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.

1.1 This test method covers the determination of fatigue crack growth rates from near-threshold to Kmax controlled instability. Results are expressed in terms of the crack-tip stress-intensity factor range ( K), defined by the theory of linear elasticity.

1.1 This test method 2 covers the determination of fatigue crack growth rates from near-threshold to Kmax controlled instability. Results are expressed in terms of the crack-tip stress-intensity factor range (Δ K), defined by the theory of linear elasticity.

This standard is issued under the fixed designation E647; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

The ASTM E647 standard for determination of the threshold value ΔK th and the fatigue crack growth da/dN addresses regions I and II of the crack growth curve. The crack growth to ASTM E647 is mainly determined for ductile materials.