Structural Damping Effects on Dynamic Instability of Subtangentially Loaded and Shear Deformable Beck’s Columns

Table 1

Material and geometric properties of the Beck’s column model.

Property	Unit			Dimensionless unit
Cross-sectional area,	1.2 × 10^−4 m^2			1.0
Moment of inertia,	1.0 × 10^−9 m^4			1.0
Elastic modulus,	10.0 Gpa			1.0
Poisson’s ratio,	0.3			0.3
Mass density,	1.0 × 10^3 kg m^−3			1.0
Total length of column,	1.0 m	71.4 mm	35.7 mm	1.0	1.0	1.0
Slenderness ratio,	346.4	24.74	12.37	∞	24.74	12.37
Shear parameter,	2.55 × 10^−5	0.005	0.02	0.0	0.005	0.02