1. Materials
R. Bates et al.

2. K of PocoFoam under shear strength
PocoFoam conductivity ~10% of total sandwich
Sample broke at 0.88 MPa
Increase in Poco (plus glue joints) of 38%
ANSYS implies max stress in foam of 0.47 MPa
Property
Tensile (MPa)
Shear (MPa
Yield Strength
0.6
0.5
Ultimate strength
0.8
0.78
Breaking strength
0.86
0.88
Shear (MPa)
Total Resistance (K/W)
Foam resistance (K/W)
Increase in resistance
4.9
0.42
0.5
4.97
0.49
17%
0.78
5.06
0.58
38%
New tests of samples with higher sensitivity (Poco~30%) gave similar results

3. Hysol with BN Samples made with BN + vacuum + Degassing agent
Arrived at Glasgow today from RAL
Need to order more BN to continue these studies, including wetting agents
BN from Momentive not arrived
Need to chase SSC – groan!
Poco to S/S glue joint
Glasgow making simple flat samples – measure joint conductivity at QMU
Pipe to poco samples – understand if possible to measure contact with a transient technique.

4. Poco Modelling Matlab code to generate a bubble material
Imported into Solidworks to generate a CAD item
Imported into Ansys for thermal/mechanical modelling
However, Poco informed us that they have discontinued production!
Should concentrate efforts on Allcomp materials – have some models from Ryan Page

5. Glue Module to bus/stave
Creep tests modules to Bus/Stave
Initial tests performed with DMA
Input required to understand shear force that might occur
Modelling work from Richard Bennett for this
Alternative glue?
Need to be able to remove a module from a stave
Need to make a test procedure to quantify ability to remove module from stave
Thermal conductivity of Intertronics IRS 2125 soon

6. Other Mechanical measurements
CFPR stress/strain relationship under tension
Measure with strain gauges to yield
New CFPR sample from Tim arrived at RAL
Bend tests of corrugated samples
New samples from Georg tested.
Results to be presented at Monday meeting

7. Radiation studies Tim put in mechanical parts before Easter
Testing over summer?
Should irradiated any new glue or glue additive