in this paper, pile behavior embedded in layered soil deposits subjected to seismic loadings is analyzed using a nonlinear fiber element for simulation of soil – pile interactions. in the created model, both pile and surrounding soil are modeled using fiber elements in a practical beam on nonlinear winkler foundation (bnwf) concept. herein, the features of drain–3dx finite element software are ...

in this paper we have discussed the main features of a finite clement program which we have developed for nonlinear dynamic analysis of plates and shells with material and geometric nonlinear behaviour. for this purpose, initially, the finite element model which we have used is briefly described. afterwards, the nonlinear viscoplastic material model in one-dimensional and multi-dimensional medi...

No AccessEngineering NotesTime-Delay Margin and Robustness of Incremental Nonlinear Dynamic Inversion ControlYingzhi Huang, Ye Zhang, Daan M. Pool, Olaf Stroosma Qiping ChuYingzhi HuangNorthwestern Polytechnical University, 710072 Xi’an, China*Associate Professor, School Power Energy; . Member AIAA.Search for more papers by this author, ZhangNorthwestern China†Associate Astronautics; AIAA (Corr...

Ab&aet-Finite element procedures fur the dynamic analysis of fluid-structure systems are presented and evaluated. The fluid is assumed to be inviscid and compressible and is described using an updated &ran@an formulation. Variable-number-nodes isopammetric twoand threedimensional elements with hmtped or consistent mass idealization are employed in the finite element discretization, and the incr...

the seismic performance of hybrid braces composed of steel and shape memory alloy (sma) was investigated in this paper. six types of hybrid braces were used, constituted by sma content of 0, 20, 40, 60, 80, and 100%. a nonlinear dynamic analysis was performed under el centro earthquake records, with the maximum acceleration of 0.6g and 0.9g. our results showed that the seismic performance, i.e....