From: Optimisation Method for Determination of Crack Tip Position Based on Gauss-Newton Iterative Technique
Parameter
\(a_{1}\)
\(a_{2}\)
\(a_{3}\)
\(a_{4}\)
\(a_{5}\)
Value
30
−40
−1200
2600
−100000
\(x_{o}\)
\(y_{o}\)
\(T_{x}\)
\(T_{y}\)
\(R\)
700
650
10
0.0005