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368483 |
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|a Achintha, Mithila
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|a You, Chao
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|a He, Binyan
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|a Soady, K.A.
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|a Reed, P.A.S.
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|a Stress relaxation in shot-peened geometric features subjected to fatigue: experiments and modelling
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|c 2014-08.
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|z Get fulltext
|u https://eprints.soton.ac.uk/368483/1/AMR.996.729.pdf
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|a This paper investigates experimentally and numerically the degree to which the stress relaxation in simple shot-peened geometries can be modelled by using a knowledge of simplified eigenstrain distributions. The residual stress generated due to shot peening is determined as the elastic response of the whole component when the plastic strains caused by the process are incorporated as an eigenstrain in an appropriate finite element (FE) model. The application of a subsequent live load is then modelled as an additional load step in the FE model which will superpose the effect of this loading on the residual stress field. The results show that the hybrid eigenstrain/FE approach is particularly useful in predicting residual stress relaxation in shot-peened components.
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