ARAN - Access to Research at NUI Galway

Computational simulation of the relaxation of local stresses due to foreign object damage under cyclic loading

ARAN - Access to Research at NUI Galway

Show simple item record

dc.contributor.author Leen, Sean B. en
dc.date.accessioned 2010-08-20T11:02:01Z en
dc.date.available 2010-08-20T11:02:01Z en
dc.date.issued 2010 en
dc.identifier.citation Davis, T., Ding, J., Sun, W. & Leen, S.B, (2010) "Computational simulation of the relaxation of local stresses due to foreign object damage under cyclic loading," Proc. IMechE, Part L: J. Materials: Design and Applications, 2010, 224 (L2), 41-50. en
dc.identifier.uri http://hdl.handle.net/10379/1287 en
dc.description.abstract In this study, the phenomenon of residual stress relaxation from foreign object damage (FOD) is numerically simulated using a hybrid explicit¿implicit finite-element method. The effects of cycle fatigue loadings on stress relaxation were studied. FOD is first simulated by firing a 3 mm cube impacting onto a plate made of titanium alloy Ti-6Al-4V at 200 m/s. The FOD impact produces two distinct stress concentrations: one is compressive directly beneath the impact site; the other is tensile around the outer edge of the impact. The plate was then assumed to be subjected to a cyclic fatigue loading. The stress relaxation was investigated under a range of stress ratios and maximum applied stresses. Two different material models were considered for the simulations, namely an elastic¿perfectly plastic model and a non-linear kinematic hardening model. en
dc.format application/pdf en
dc.language.iso en en
dc.subject Stress relaxation en
dc.subject Residual stress en
dc.subject Foreign object damage en
dc.subject Impact en
dc.subject Finite element en
dc.title Computational simulation of the relaxation of local stresses due to foreign object damage under cyclic loading en
dc.type Article en
dc.local.publishedsource http://dx.doi.org/10.1243/14644207JMDA286 en
dc.description.peer-reviewed peer-reviewed en

Files in this item

This item appears in the following Collection(s)

Show simple item record