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Neutron Diffraction Measurement of the Stress Field During Fatigue Cycling of a Cracked Test Specimen

Published online by Cambridge University Press:  21 February 2011

M.T. Hutchings
Affiliation:
Materials Physics and Metallurgy Division, Harwell Laboratory, Didcot, OX11 ORA, United Kingdom
C.A. Hippsley
Affiliation:
Materials Physics and Metallurgy Division, Harwell Laboratory, Didcot, OX11 ORA, United Kingdom
V. Rainey
Affiliation:
Materials Physics and Metallurgy Division, Harwell Laboratory, Didcot, OX11 ORA, United Kingdom
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Abstract

The triaxial stress field has been measured along the centre line of a compact tension specimen in the direction of cracking. The specimen had been subjected to ∼60,000 cycles at δK=31 and Kmax = 34 MPa mm½ and was bolted open at maximum stress. The field was remeasured after the stress had been fully relaxed. The results are discussed in terms of expectations from fracture mechanics calculations.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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