کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
771558 | 897644 | 2008 | 13 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Numerical and experimental analyses of singular electro-elastic fields around a V-shaped notch tip in piezoelectric materials Numerical and experimental analyses of singular electro-elastic fields around a V-shaped notch tip in piezoelectric materials](/preview/png/771558.png)
A super V-shaped notch tip element that simulates electro-elastic behavior near a V-shaped notch tip is first developed based on one-dimensional finite element eigensolutions. The present element is then incorporated with standard four-node hybrid electro-elastic field elements to calculate electro-elastic singularity orders, singular strain distributions and generalized stress intensity factors ahead of V-shaped notch tips in three-point-bending piezoelectric specimens with notch angles α = 0°, 30°, 60° and 90°, respectively. The present numerical solutions are compared with those obtained from the moiré interferometry experiment technique. Finally, the effect of the V-shaped notch angle and electric field on singular electro-elastic fields is also discussed.
Journal: Engineering Fracture Mechanics - Volume 75, Issue 18, December 2008, Pages 5029–5041