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- W79182493 abstract "A numerical procedure using the finite element method is presented for predicting the initiation of lamellar tearing in fillet welded T-joints commonly employed in large structures. Starting with a prescribed geometry, the welding process is approximated by a known time-dependent volumetric heat source which simulates the arc heating and deposition of liquid metal. The transient nonlinear thermal and stress problems are then solved using finite element computer codes. Results of the elastic-plastic stress analysis are presented showing a predicted region of incipient lamellar tearing based on a ductile fracture theory which qualitatively agrees with the size and location of tears typically observed in photomicrographs. Additional insight into post failure crack length and stability is presented based on a simplified linear elastic fracture mechanics approach. Although the analysis procedure shows signs of promise, several weak points in the model are pointed out which must be improved before lamellar tearing can be quantified in an approach of this general type." @default.
- W79182493 created "2016-06-24" @default.
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- W79182493 date "1980-01-01" @default.
- W79182493 modified "2023-09-27" @default.
- W79182493 title "Finite element analysis for the initiation of lamellar tearing in welded joints" @default.
- W79182493 hasPublicationYear "1980" @default.
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