An inverse problem in estimating the space-dependent thermal conductivity of a functionally graded hollow cylinder

Wen Lih Chen, Huann Ming Chou, Yu Ching Yang

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

In this study, an inverse algorithm based on the conjugate gradient method and the discrepancy principle is applied to estimate the unknown space-dependent thermal conductivity of a functionally graded hollow cylinder. Two different boundary condition types are discussed. The results show that boundary condition type is very crucial to the success of the inverse method. For the case studied here, the inverse method works in conjunction with heat flux specified at the inner wall and convective heat transfer condition at the outer wall but not with constant temperatures specified at both inner and outer walls. The effect of measurement error and sensor number on the estimation accuracy is also investigated. The method can be developed into an accurate, simple, and inexpensive technique for the quality control during the manufacture of functionally graded materials.

原文English
頁(從 - 到)112-119
頁數8
期刊Composites Part B: Engineering
50
DOIs
出版狀態Published - 2013 七月

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 材料力學
  • 機械工業
  • 工業與製造工程

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