the National Natural Science Foundation of China(No.51208296);the National Key Technology R&D Program(Nos.2011BAG07B01 and 2012BAK24B00);the National Basic Research Program(973)of China(No.2011CB013600)
A dynamic hysteretic constitutive model for soil dynamics, Ramberg-Osgood model, is introduced and improved in the paper. Since the model is inherently 1D and is assumed to apply to shear components only, other compon...