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NSTX CSU Testing

NSTX CSU Testing. 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 Published Material Specifications.

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NSTX CSU Testing

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  1. NSTX CSUTesting Flex Strap Conductor Initial Material Fatigue Testing

  2. Material • Manufacture PMX Industries • Manufacture Alloy # 151 • ASTM Specification B747 • USN/CDA # C15100 • Material Section 4” x 0.077” • Hardness H04

  3. 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

  4. 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)

  5. 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)

  6. 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

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