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I have just conducted a crack growth analysis and I get a message box that says “check for fast crack growth rate @ #### cycles”, what does that mean?

April 26, 2017analysis Box conducted crack fast growth message rate

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I have just conducted a crack growth analysis and I get a message box that says “check for fast crack growth rate @ #### cycles”, what does that mean?

1 Answer

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The “Fast Crack Growth” message is referring to the da/dN of the crack as it grows. What is happening is the crack growth rate has essentially become infinite (the vertical line) before the brittle facture occurs. This message is to let you know that this fast crack growth rate has occurred.