| Autor: |
J. O. Hallquist, G. L. Nutt |
| Rok vydání: |
1982 |
| Předmět: |
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| Zdroj: |
AIP Conference Proceeding Volume 78. |
| DOI: |
10.1063/1.33312 |
| Popis: |
We model the dynamic response of two ytterbiumm gauges using the two‐dimensional Lagrangian finite difference code DYNA2D. The gauges are embedded in a PMMA medium. The stress and strain state of each element of the gauge is then used to calculate the resistance change as a function of time.The basis for modeling the electrical response of the gauge are piezoresistance equations of the type discussed by Grady and Ginsburg. These equations allow a separation of the gauge signal into a stress related component (reversible) and a strain related component (possibly hysteretic). The calculated signal is then compared with experiments reported by Gupta et al.This approach allows us to calculate the separate stress‐ and strain‐related signals. Although the calibration equatins, applied to the gauge as a whole, are invariant under rotation about the direction of current flow, experiments show different signals for difference orientations. We are able to resolve this paradox by calculating the dynamic response of ... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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