Thermal uncertainty quantification in frequency responses of laminated composite plates

S. Dey, T. Mukhopadhyay, S. K. Sahu, G. Li, H. Rabitz, S. Adhikari

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

Abstract The propagation of thermal uncertainty in composite structures has significant computational challenges. This paper presents the thermal, ply-level and material uncertainty propagation in frequency responses of laminated composite plates by employing surrogate model which is capable of dealing with both correlated and uncorrelated input parameters. The present approach introduces the generalized high dimensional model representation (GHDMR) wherein diffeomorphic modulation under observable response preserving homotopy (D-MORPH) regression is utilized to ensure the hierarchical orthogonality of high dimensional model representation component functions. The stochastic range of thermal field includes elevated temperatures up to 375 K and sub-zero temperatures up to cryogenic range of 125 K. Statistical analysis of the first three natural frequencies is presented to illustrate the results and its performance.

Original languageEnglish (US)
Article number3641
Pages (from-to)186-197
Number of pages12
JournalComposites Part B: Engineering
Volume80
DOIs
StatePublished - Jun 22 2015

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Keywords

  • A. Laminates
  • B. Vibration
  • C. Computational modelling
  • C. Statistical properties/methods
  • Thermal uncertainty

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