a/w ratio

Displacement (u), mm

d(norm a)/du

d(norm C)/du

0.07

0.585

7.407

6.059

0.21

0.585473

4228.330

695.194

0.35

0.585832

5571.031

847.737

0.49

0.585904

27777.778

4541.150

0.63

0.586004

20000.000

4328.144

0.77

0.586106

19607.843

6422.221

0.91

0.586163

35087.719

25707.206

1

0.586254

14128.728

−47350.616