337 ns
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Transcript of 337 ns
1G.E. Ellwood
Advanced Materials Group 1
337 ns
1 ps
1 train of 2820 bunches
bunch
1 train of 2820 bunches
0.2s between trains
1 bunch made up of 2x1010 electrons each with 250GeV, total energy is 800J.
In Ti speed of sound is ~5000 m/s, so in 337nS travels ~1.6mm (and in 1ps travels .005 microns)
In 337nS, heat travels around 5 microns (document 13)
In 1 ps light travels 300 microns
Beam impact = 1 or 2 bunches
Ti-6AL-4V properties at room temperature
Thermal conductivity, k 6.7 W m-1 k-1
Specific Heat Capacity, c 526.3 J kg-1 k-1
Density, r 4430 kg m-3
Diffusivity, a (=k/rc) 2.87 x 10-6 m2 s‑1
2G.E. Ellwood
Advanced Materials Group 2
Using Tables and Transient Thermal Analysis
• The following slide contains an animation of a transient thermal analysis. This shows von Mises stress against time.
– The heat was applied as a table using results supplied by Luis Fernandez.
• More work needs to be done optimising the mesh size and time steps etc. but it shows that the methods work together.
3G.E. Ellwood
Advanced Materials Group 3