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Keywords: load ratio
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Journal Articles
Journal:
Journal of ASTM International
Publisher: ASTM International
Article Type: Research-Article
J. ASTM Int.. February 2012, 9(2): 1–12.
Published Online: May 8, 2012
... related to the crack-growth rate in the threshold and near-threshold regimes. 12 05 2011 04 10 2011 21 10 2011 Cracks fatigue-crack growth crack closure K max effect threshold load ratio compression precracking References Donald , K. , “ User’s Reference Manual...
Journal Articles
Journal:
Journal of ASTM International
Publisher: ASTM International
Article Type: Research-Article
J. ASTM Int.. April 2010, 7(4): 1–16.
Published Online: April 1, 2010
...J. C. Newman, Jr.; Y. Yamada; J. A. Newman Fatigue-crack-growth rate tests were conducted on compact specimens made of a 7050-T7451 aluminum alloy to study the behavior over a range in load ratios (0.1≤ R ≤0.9) and constant K max test conditions. Previous research had suggested that differences...
Journal Articles
Journal:
Journal of ASTM International
Publisher: ASTM International
Article Type: Research-Article
J. ASTM Int.. June 2005, 2(6): 1–12.
Published Online: June 1, 2005
... of the Q method is discussed together with its relation to the ASTM procedure, and both methods were used to analyze experimental data of 2324-T39 and 7475-T7351 Al alloys tested at 0.1 and 0.9 load ratios. On average the crack opening load values from the Q method are smaller by the factor of about 2/π...
