Title :
High accuracy analysis method for 3D nanoscale deformation / fracture characteristics inside a material
Author :
Nakazawa, Mitsuru ; Kobayashi, Masakazu ; Toda, Hiroyuki ; Aoki, Yoshimitsu
Author_Institution :
Grad. Sch. of Sci. & Technol., Keio Univ., Yokohama, Japan
Abstract :
To evaluate internal thorough material characteristics in deformation, we proposed an analysis method which obtains displacement vectors of dispersed particles between deformation from nano-order 3D-CT images. In this paper, we introduce an improved approach to achieve more robust matching and eliminate the need to tune some parameters. To confirm the effectiveness of the improved approach, virtual tensile tests are carried out. Precision is achieved more than 99% at every matching between adjacent load steps.
Keywords :
computerised tomography; deformation; fracture; materials science computing; 3D nanoscale deformation; displacement vectors; fracture characteristics; high accuracy analysis method; material characteristics; nano order 3D CT images; virtual tensile tests; Deformable models; Estimation; Load modeling; Materials; Springs; Strain; Three dimensional displays; 3D-CT; PTV; material evaluation; nano-order observation;
Conference_Titel :
SICE Annual Conference 2010, Proceedings of
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-7642-8
