Measuring the elastic properties of fine wire.
The elastic moduli of fine wires made from MP35N and 304SS used in implantable biomedical devices are assumed to be the same as those published in the literature. However, the cold working required to manufacture the wire significantly alters the elastic moduli of the material. We describe three experiments performed on fine wire made from MP35N and 304SS. The experimentally determined Young's and shear modulus of both wire types were significantly less than the moduli reported in the literature. Young's modulus differed by as much as 26%, and the shear modulus differed by as much as 14% from reported values.
Fallen
C T
CT
Physics Department, Fort Lewis College, Durango, Colorado 81301, USA.
Costello
J
J
Crawford
G
G
Schmidt
J A
JA
D000497:Alloys / Q000737:chemistry; D001672:Biocompatible Materials / Q000737:chemistry; D004548:Elasticity; D004864:Equipment and Supplies / Q000592:standards; D008422:Materials Testing / Q000295:instrumentation / Q000379:methods*; D008670:Metals; D012016:Reference Values; D012542:Scattering, Radiation; D013314:Stress, Mechanical; D013718:Tensile Strength
C448992:304SS alloy; D000497:Alloys; D001672:Biocompatible Materials; D008670:Metals; C035402:MP35N alloy