Research Article

Investigating the Frequency Spectrum Characteristic of Stress Wave under Multistage Loading Stress

Table 3

Relevant parameters of regression equation.

Strain gaugesE f0 × 102R 0E f1 × 102

A0.33320.08230.2006
B0.26420.09670.2056
C0.25690.10490.1923
D0.20150.12270.2064
E0.16010.12930.1821