Abstract
The sampling Moiré (SM) method is one of the vision-based non-contact deformation measurement methods, which is a powerful tool for structural health monitoring and elucidation of damage mechanisms of materials. In this review, the basic principle of the SM method for measuring the two-dimensional displacement and strain distributions is introduced. When the grid is not a standard orthogonal grating and cracks exist on the specimen surface, the measurement methods are also stated. Two of the most typical application examples are described in detail. One is the dynamic deflection measurement of a large-scale concrete bridge, and the other is the residual thermal strain measurement of small-scale flip chip packages. Several further development points of this method are pointed out. The SM method is expected to be used for deformation measurement of various structures and materials for residual stress evaluation, crack location prediction, and crack growth evaluation on broad scales.
| Original language | English |
|---|---|
| Article number | 100327 |
| Journal | Theoretical and Applied Mechanics Letters |
| Volume | 12 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2022 |
| Externally published | Yes |
Keywords
- Bridge
- Displacement measurement
- Flip chip package
- Strain distribution
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