Numerical values of the coefficients appearing in the crack propagation speed (Eq. 8).
|αȧ (μm h−1)||9 × 1012|
|K0 (MPa )||12|
|R (J mol−1 K1)||8.314|
|Q (J mol−1)||130 × 103|
|a (m)||5 × 10−3|
|(L kg−1)||30 × 10−3|
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