6533b85afe1ef96bd12b94a8
RESEARCH PRODUCT
Strain Measurement on Composites: Effects due to Strain Gauge Misalignment
Giuseppe PitarresiAugusto Ajovalasitsubject
LaminaExperimental mechanicsWork (thermodynamics)Materials scienceMechanical EngineeringComposite numberStrain measurementStiffnessOrthotropic materialbody regionsMechanics of MaterialsmedicineComposite materialmedicine.symptomStrain gaugedescription
: The present work analyses the errors affecting the strains measured by misaligned strain gauges installed on orthotropic-composite laminae. Various analytical relationships are derived showing that, besides the fibre and strain gauge orientations, the misalignment error in unidirectional off-axis orthotropic composite samples depends also on the lamina stiffness properties (E1, E2, ν12, G12). If the fibres are aligned with the loading axis, it is found that the higher Poisson's ratio ν12 is the only elastic property influencing the misalignment error. Experimental results are shown confirming the theoretical predictions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-12-30 | Strain |