PSI - Issue 28

Giovanni Meneghetti et al. / Procedia Structural Integrity 28 (2020) 1062–1083 G. Meneghetti/ Structural Integrity Procedia 00 (2019) 000–000

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Table 6. Parametric polynomial coefficients to be adopted in Eq. (12) for estimating SED parameters e i Coefficient e 1 e 2 e 3 p 00 1.465ꞏ10 -1 2.357ꞏ10 -1 3.183ꞏ10 -1 p 10 -1.684ꞏ10 -2 -5.639ꞏ10 -2 -8.842ꞏ10 -4 p 01 -8.296ꞏ10 -3 -6.838ꞏ10 -4 3.183ꞏ10 -1 p 20 -1.816ꞏ10 -2 5.448ꞏ10 -3 8.168ꞏ10 -15 p 11 3.428ꞏ10 -1 1.556ꞏ10 -3 -8.842ꞏ10 -4 p 02 -2.868ꞏ10 -4 -1.576ꞏ10 -4 0 p 30 -5.476ꞏ10 -4 -1.068ꞏ10 -4 0 p 21 1.231ꞏ10 -3 -4.998ꞏ10 -4 0 p 12 9.226ꞏ10 -5 7.466ꞏ10 -5 0 p 40 1.451ꞏ10 -3 -8.246ꞏ10 -5 0 p 31 -3.631ꞏ10 -4 6.646ꞏ10 -5 0 p 22 3.024ꞏ10 -5 -1.595ꞏ10 -5 0 p 50 1.547ꞏ10 -4 0 0 p 41 -1.329ꞏ10 -4 0 0 p 32 -7.563ꞏ10 -6 0 0

ν

ν

2α

2α

ν

2α

Fig. 4 Surface plot of polynomial parametric interpolants of averaged SED coefficients.