Fatigue Crack Growth Design Lab

EXERCISE 1: Review Example Problem ͳͳ.ʹ before proceeding. Plot the calculated values of da/dN versus ΔK from table Eͳͳ.ʹ using MATLAB or MS Excel to confirm values of

ͺ.͵ͻ x ͳͲି଼ ௠௠ ௖௬௖௟௘ ⁄ ሺெ௉௔√௠ሻ೘ and ͵.ʹͷ for C and m, respectively. Save the plot as a PDF file to submit with your lab report.

EXERCISE 2: Use the above procedure to solve Problem ͳͳ.Ͷ͵ in Dowling ȋʹͲͳ͵Ȍ on page ͸ͳͷ. Use either MS Excel or MATLAB for your calculations.

Sample Solution