A static analysis of nonuniform column by stochastic finite element method using weighted integration approach

  • Ta Duy Hien

    University of Transport and Communications, No 3 Cau Giay Street, Hanoi, Vietnam
    Research and Application center for technology in Civil Engineering (RACE), University of Transport and Communications, No 3 Cau Giay Street, Hanoi, Vietnam
Email: tdhien@utc.edu.vn
Từ khóa: Nonuniform column, weighed integration method, SFEM, random field

Tóm tắt

In general, the fluctuation of the elastic modulus of materials is crucial in structural analysis. This paper develops a stochastic finite element method (SFEM) for analyzing a nonuniform column considering the random process in elastic modulus. This random process of elastic modulus is assumed as a one-dimensional Gaussian random field. The weighted integration method is used to discretize the random field and establish the stochastic finite element formulation to compute the first and second moments of displacement fields. The results of the proposed approach are validated with those of the previous study. The response variability of displacement of column and effect of the parameter of the random field is investigated in detail.

Tài liệu tham khảo

Communications Science Journal, 70(2019) 95-103. https://doi.org/10.25073/tcsj.70.2.2
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