Journal
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 193, Issue 1-2, Pages 139-160Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2003.10.001
Keywords
shell finite element; stochastic analysis; response variability; spectral representation
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In this work, an extended stochastic formulation of the triangular composite facet shell element TRIC is presented for the case of combined uncertain material (Young's modulus, Poisson's ratio) and geometric (thickness) properties. These properties are assumed to be described by uncorrelated two-dimensional homogeneous stochastic fields. The stochastic finite element analysis of shell structures is performed using the spectral representation method for the description of the random fields in conjunction with Monte Carlo simulation (MCS) for the computation of the response variability. Useful conclusions regarding the influence of each one of the structural parameters on the response variability are derived from the numerical tests examined. (C) 2003 Elsevier B.V. All rights reserved.
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