Accession Number : ADA119995

Title :   Material Characterization. Part A. Mechanical Properties of Two Metals at Several Strain Rates.

Descriptive Note : Technical rept. 1 Oct 77-30 Nov 79,


Personal Author(s) : Emery,Susan A

PDF Url : ADA119995

Report Date : May 1982

Pagination or Media Count : 76

Abstract : This report describes mechanical property data collected in support of a fan blade analysis model. The development of the blade model is part of a foreign object damage (FOD) study of jet engine fan blades. Use of the properties in the model allows one to evaluate potential fan blade materials. Part A of this report contains a discussion of the mechanical property tests conducted on two metallic materials: 410 stainless steel and 8Al-1Mo-1V titanium. Part B of the report contains a discussion of mechanical property tests conducted on the two composite components of a hybrid composite blade: boron/2024 aluminum and stainless steel wire mesh. Static, quasi-static and dynamic tensile tests were conducted on the metallic materials because (1) studies indicate that metallic mechanical properties exhibit strain rate dependence and (2) tests conducted on full scale blades show that various locations on the fan blades load at different rates. The mechanical properties measured include Young's Modulus (when obtainable), Poisson's ratio (when obtainable), the yield strength, the ultimate strength, and the ultimate strain. The density of the materials was also measured.

Descriptors :   *Stainless steel, *Titanium alloys, *Mechanical properties, *Fan blades, Jet engines, Ingestion(Engines), Strain rate, Modulus of elasticity, Tensile strength, Poisson ratio, Yield strength, Density, Shear properties, Stress strain relations, Mathematical models, Equations, Numerical analysis

Subject Categories : Aircraft
      Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE