Finite Element Validation of the over-Coring Deep-Hole Drilling Technique

Sayeed Hossain; Ed J. Kingston; Christopher E. Truman; David John Smith

doi:10.4028/www.scientific.net/AMM.70.291

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 70Finite Element Validation of the over-Coring...

Finite Element Validation of the over-Coring Deep-Hole Drilling Technique

Abstract:

The main objective of the present study is to validate a simple over-coring deep-hole drilling (oDHD) residual stress measurement technique by utilising finite element simulations of the technique. A number of three dimensional (3D) finite element analyses (FEA) were carried out to explore the influence of material removal and the cutting sequence during the deep-hole drilling (DHD) residual stress measurement process on the initial residual stress field. Two models were considered in the study. First, the residual stress field predicted in a rapid spray water quenched solid cylinder was used as the initial stress field for the DHD FE model. The DHD reconstructed residual stresses were compared with the initial FE predicted stresses. Different cutting sequences and different dimensions were systematically simulated before arriving at an optimum solution for the oDHD technique. The oDHD technique significantly improved the spatial resolution and was applied in a second model consisting of a 40mm thick butt-welded pipe. The DHD reconstructed residual stresses compared very well with the initial FE predicted weld residual stress thereby validating the oDHD technique.

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Periodical:

Applied Mechanics and Materials (Volume 70)

Pages:

291-296

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.70.291

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Online since:

August 2011

Authors:

Sayeed Hossain, Ed J. Kingston, Christopher E. Truman, David John Smith

Keywords:

Deep-Hole Drilling Measurement, Finite Element (FE) Simulation, Over-Coring Deep-Hole Drilling, Quenching Residual Stress, Weld Residual Stress

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