Method for Predicting Barge Impact Force Based on Nonlinear Spring Stiffness

Table 1

Material parameters of barge.

Type	Density (kg/m^3)	Elastic modulus (MPa)	Poisson	Yield strength (MPa)	Tangent modulus (GPa)	Failure strain
Bow	7800	2.1 × 10^5	0.3	235	1.18	0.34
Hull	7800	2.1 × 10^5	0.3	—	—	—
Cargo	Variable	2.1 × 10^2	0.3