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mockup discussion
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Fuji papers
- We should aim to use the fuji in each location (MP, Pole, outer radius, and between layers, even if shear could most probably invalidate the last two readings)
- In the AL mock-up, both in the one with merged inner and outer layers, all soft layers will be included in the Al body. In the location where fuji papers will be applied, a stainless steel shim will be placed and it will be swapped with fuji based on the goal of the measurement
Strain gauges
- Strain gauges will be applied in the inner radius as was done in the 11T collaring campaign
- Concerning the strain gauges to be applied at the pole level, multiple solutions have been discussed, namely
- Increasing the thickness of the outer layer loading plate, to use it as a uniform surface for strain measurements
- Employing strain gauges only in the outer radius, benchmark them with DIC as a double validation of the DIC reading on the inner layer
- Apply the strain gauges in the inner layer on the Cu wedge
Collaring tool
- The top tool's thickness will be the same as that of the 11T collaring campaign, and it will be clamped to the top compressive plate of the UTM.
- The bottom tool will be aligned to the center of the UTM on the bottom plate, and will be glued to it for the full duration of the testing campaign.
- For the use in 927, the collaring tool will be stiffer
- The collaring tool should not exceed the mockup's length by more than a few centimeters per side, as it would invalidate DIC readings.
Collars
- The "horns" will be raised, and some iron will be shaved off where it will most probably saturate.
- The "nipples" will be switched with a 0.2mm washer.
- Available lifting tools will be checked and adapted accordingly.
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