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Material Property R&D – Review of remaining tests. Kozub, Chrzanowski Kozub, Chrzanowski Nelson, Cole Heitzenroeder Kalish HM Fan. Single conductor torsion tests Transverse compression at LN2 4 turn racetrack fatigue tests Multi-turn beam bending and torsion tests, including fatigue
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Material Property R&D – Review of remaining tests Kozub, Chrzanowski Kozub, Chrzanowski Nelson, Cole Heitzenroeder Kalish HM Fan • Single conductor torsion tests • Transverse compression at LN2 • 4 turn racetrack fatigue tests • Multi-turn beam bending and torsion tests, including fatigue • Mod coil casting material fatigue property tests- 2 welded, 9 non-welded from EIO - • 2-D glass/epoxy tests (for TF,PF coils only) and need for 3-D • Compile material property database
Material Property R&D – Review of remaining tests • Single conductor torsion tests – 40 hours – 2 wks cal. time • Transverse compression at LN2 – 8 hours – couple days • Dogbone test - 8 hours @RT, can we do LN2? – not easy • 4 turn racetrack fatigue tests – ~ 200 hours left - • pull long coil to failure, find out max load, resistance vs strain at room temperature – week or two, done by Oct 15 • Increase cyclic load in 1st short coil to 20000 lbs at LN2 and run to appropriate number for 33% load increase, start by Oct 19 • Increase cyclic load in short coil to 25000 lbs at LN2 and run appropriate number of cycles for 67% load increase • Increase load to 30000 lbs and run to failure, end by Nov 10 • Review plan, then run 2nd coil (e.g. max load not to exceed failure strain at RT, or some other test, must end by Nov 24 or start after Dec 15
Full scale beam bending and torsion test • 3-point bend / torsion test in 4-column MTS load frame • RT or LN2 temp • 5 extensiometers: • Left, right ends, • Left, right midpts • Center • Tests for: • Load / deflection • Fatigue • 3 specimens: • Original 18 turn beam • 40 turn beam • 40 turn beam with crossovers
Full scale beam bending and torsion test - Status • Complete: • Beams on site and prepped for test (cut to 42 in long) • All fixtures completed (except insulation) • 5 extensiometers on hand • FEA of original beam completed for bending only • Original beam loaded for testing • To Do: • Write test / safety procedure for LN2 operation (part of 1403-42F, $24k total in plan) • Procure approved insulation system (part of 1403-42F) • Perform deflection and fatigue tests – 2 wks from start (part of1403-42F) • Perform FEA analysis of new beams, incl leads (in plan $22k-1403-42G)
Beam FEA model – 18 turn sample #1 • ½ of beam (one side = 9 turns) modeled • E-cable/epoxy = 9.5 e6 psi • E-epoxy/glass insulation = 1.5 e6 psi • Supported at ends and loaded in center • Loads and supports through small pads
