Research Article
A Cell-Based Smoothed XFEM for Fracture in Piezoelectric Materials
Table 6
Intensity factor under different crack lengths.
| | Intensity factor | CS-XFEM | XFEM | Analytical solution |
| 1 mm | /107 × Pa⋅mm0.5 | 0.2995 | 0.2950 | 0.3076 | /10−9 × C⋅mm−1.5 | 0.2986 | 0.2983 | 0.3076 |
| 2 mm | /107 × Pa⋅mm0.5 | 0.5322 | 0.5263 | 0.5416 | /10−9 × C⋅mm−1.5 | 0.5300 | 0.5230 | 0.5416 |
| 4 mm | /107 × Pa⋅mm0.5 | 0.8513 | 0.8368 | 0.8681 | /10−9 × C⋅mm−1.5 | 0.8454 | 0.8351 | 0.8681 |
| 6 mm | /107 × Pa⋅mm0.5 | 1.0517 | 1.0560 | 1.0800 | /10−9 × C⋅mm−1.5 | 1.0603 | 1.0432 | 1.0800 |
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