Corpus ID: 139031982

Determining the Residual Stresses of Circular Weld Bead with Eigenstrain BIE as an Inverse Approach

@inproceedings{Ma2014DeterminingTR,
  title={Determining the Residual Stresses of Circular Weld Bead with Eigenstrain BIE as an Inverse Approach},
  author={Hang Ma},
  year={2014}
}
  • Hang Ma
  • Published 2014
  • Materials Science
  • Using the computational model based on the eigenstrain boundary integral equations (BIE), an algorithm of inverse problem is investigated to determine the circular weld bead induced residual stresses. In order to reduce the number of unknowns and to consider the stability of inverse problem, the eigenstrains are approximated by low-order polynomials in the local area, divided into cells, around welded zones according to the features of welding. The sensitivity matrix in the inverse approach for… CONTINUE READING

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