nstx csu testing
DESCRIPTION
NSTX CSU Testing. Flex Strap Conductor Initial Material Fatigue Testing. Material. ManufacturePMX Industries Manufacture Alloy #151 ASTM SpecificationB747 USN/CDA #C15100 Material Section4” x 0.077” HardnessH04. Manufacture’s Published Material Specifications. - PowerPoint PPT PresentationTRANSCRIPT
NSTX CSUTesting
Flex Strap Conductor
Initial Material Fatigue Testing
Material
• Manufacture PMX Industries• Manufacture Alloy # 151• ASTM Specification B747• USN/CDA # C15100• Material Section 4” x 0.077”• Hardness H04
Manufacture’s PublishedMaterial Specifications
• Hardness: H04 (Hard)• Chemistry: Copper (99.8%)
Zirconium (0.1%)• Density: 0.323 lb/in3 • Modulus of Elasticity: 17 x 106 psi• Electrical Conductivity: 95% I.A.C.S. @68oF• Thermal Conductivity: 208 Btu/ft-hr-oF @ 68oF• Coef. Therm. Expan.: 9.8 x 106 in/in-oF• Tensile Strength: 53-62 Ksi• Yield Strength: 56 Ksi
Test Samples
• Specimen Specification ASTM E 8• Specimen Type Rectangular Tension• Specimen Size 1/4-in Subsize• Material Orientation Longitudinal (six samples) &
Transverse (seven samples)
Test Parameters
• Test Method Plain-Strain Fracture Toughness• Test Spec. ASTM E 399• Load Cycle:
– Function: Sin
– Rate: 1 Hz
– Ratio: 10% to 100% (R=0.1)
# Samples Orientation Peak Stress Peak Load Max. Cycles Test Time
3 transverse 55 Ksi ~1060 lb 10,000 ~3 hr
3 longitudinal 55 Ksi ~1060 lb 10,000 ~3 hr
3 transverse 37 Ksi ~707 lb 100,000 ~28 Hr
3 longitudinal 37 Ksi ~707 lb 100,000 ~28 hr
Test Procedure
• Measure and record the dimensions of each sample• Measure and record the hardness of each sample• Mark sample with gauge length points• Configure Test fixture for E399 tension test• Configure testing program and verify operation with extra
sample• Install and tension cycle each sample• Record number of cycles to failure or, if no failure, any
change in gauge length