Prediction of failure in weldments - Part II: Joint with initial notch and crack

G. C. Sih, Erdogan Madenci

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Mechanical defects such as notches and cracks in weldments undergoing gross yielding are analyzed. The redistribution of plastic stress and strain local to the notch and crack are determined including the effects of material nonhomogeneities that involve the weld metal, heat-affected zone and base metal. Failure predictions are made from the uniaxial data by application of the strain energy density theory in conjuction with the incremental theory of plasticity. More specifically, the fluctuations of the strain energy density function are identified with failure initiating from imperfection sites in weldments. The results are found to be highly nonlinear and depend sensitively on load history.

Original languageEnglish (US)
Pages (from-to)31-40
Number of pages10
JournalTheoretical and Applied Fracture Mechanics
Volume3
Issue number1
DOIs
StatePublished - 1985
Externally publishedYes

Fingerprint

Strain Energy Density
Notch
notches
Strain energy
Crack
cracks
flux density
Metals
Cracks
Heat Affected Zone
Defects
heat affected zone
Prediction
defects
Heat affected zone
Imperfections
Redistribution
predictions
Energy Function
Gross

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Prediction of failure in weldments - Part II : Joint with initial notch and crack. / Sih, G. C.; Madenci, Erdogan.

In: Theoretical and Applied Fracture Mechanics, Vol. 3, No. 1, 1985, p. 31-40.

Research output: Contribution to journalArticle

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