Fig. 4
From: Dynamic responsive characteristics of nailed plywood–timber joints under harmonic vibrations
Control static load–slip curve and equivalent linear secant stiffness. a Equivalent linear secant stiffness at one-third, two-thirds and three-thirds of the static maximum load and joint slip of 20 mm corresponding to frequencies of (A) 11.2 Hz, (B) 5.0 Hz, (C) 3.6 Hz and (D) 2.5 Hz. b Equivalent linear secant stiffness corresponding to frequencies of (a) 7 Hz, (b) 6 Hz, (c) 5 Hz, (d) 4 Hz, (e) 3 Hz and (f) 2 Hz