Determination of residual stresses in a steel fastener by neutron diffraction

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Residual stresses can arise from any operation involving nonuniform plastic deformation or thermal gradients. These elastic residual stresses add to the stress due to external loads, potentially leading to premature failure. Neutron diffraction has been used to non-destructively map internal residual strains on a full fastener sequence.

Description

Residual stresses can arise from any operation involving nonuniform plastic deformation or thermal gradients. These elastic residual stresses add to the stress due to external loads, potentially leading to premature failure. Neutron diffraction has been used to non-destructively map internal residual strains on a full fastener sequence.

Additional information

Author(s)

N. Nickoletopoulos and M. Hone, Ivaco Rolling Mills; R.B. Rogge, National Research Council of Canada; and J.A. Nemes, McGill University, Canada

Publication/Event/Pages

Paper presented at WAI 69th Annual Convention, Atlanta, GA USA. Paper published in Wire Journal International, April 2000, pg. 220.

Year

1999