Abstract
Non-shearable precipitates and second-phase particles are efficient obstacles to dislocation motion that have an important effect on the strength and creep resistance of many materials, in particular oxide-dispersion-strengthened alloys. When the obstacles are clustered, the material cannot be considered as a homogeneous medium. Modelling its mechanical behaviour by means of constitutive laws requires an additional step of homogenisation. We propose here a new method based on the Delaunay triangulation of the obstacle distribution and compare it with a previously developed technique based on the Voronoi tessellation. The Delaunay triangulation is considered to be a better representation of local particle arrangement. It is shown that the softening effect of particle clustering is accentuated in the Delaunay triangulation approach.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
