Estimation of residual stresses in SiC/Ti-15-3 composites and their relaxation during a fatigue test |
| |
Authors: | J-L Bobet C Masuda Y Kagawa |
| |
Affiliation: | (1) National Research Institute for Metals, 1-2-1 Sengen, Tsukuba 305, Japan;(2) Institute of Industrial Science, University of Tokyo, 7-22-1 Roppongi, Minato-ku Tokyo 106, Japan |
| |
Abstract: | Residual stresses induced by cooling down from the elaboration process in SiC/Ti-15-3 composite were calculated by the finite
element model using MARC and MENTAT software. An analytical model (derived from those of Eshelby and of Mikata and Taya) already
used for ceramic matrix composites has also been used in this study for elementary composites. The influence of uncertainty
on thermomechanical properties and also the influence of fibre packing and spacing were also studied. Then, evolution (relaxation)
of the thermal residual stresses (TRS) during a fatigue test were investigated. Results show that the TRS decreased rapidly
during the first cycles and then became almost constant at about one-third of their initial values.
This revised version was published online in November 2006 with corrections to the Cover Date. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|