Stochastic finite element method for sensitivity analysis of structures

• Autorzy: Bhattacharyya B. , Chakraborty S.
• Języki publikacji: EN

Abstrakty

EN

The conventional sensitivity analysis of structures is based on the assumption of complete certainty of design parameters. However, occurrence of uncertainty is unavoidable in structures. In the present work, an attempt has been made to study the response sensitivity, considering the effect of uncertainty in structural design parameters. The random parameters are modeled as Gaussian stochastic process and simulated through covariance matrix decomposition. The advantages of Neumann expansion technique has been utilized in deriving the finite element solution of the response sensitivity within the framework of Monte Carlo simulation. Numerical examples are presented to explain the accuracy and efficacy of Neumann expansion method over direct simulation the process.

Słowa kluczowe

EN

sensitivity; uncertain parameter; stochastic finite element; Monte Carlo simulation; Neumann expansion

PL

mechanika

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Applied Mechanics and Engineering
• Rocznik: 2000
• Tom: Vol. 5, no 4
• Strony: 867--882
• Opis fizyczny: Bibliogr. 14 poz., wykr.

Twórcy

autor

Bhattacharyya B.

autor

Chakraborty S.

• Department of Applied Mechanics, Bengal Engineering College Howrah - 711 103, INDIA