Fracture Toughness and Crack Propagation Properties of Candidate Mach 3 Transport Materials 650794

Some results of the supersonic transport materials research conducted by Douglas-McDonnell in the areas of fracture toughness, and by Douglas in the area of crack propagation, are presented. The results of tests on centrally notched fracture toughness specimens of steels, titaniums, and superalloys are described. The crack propagation studies show results of testing cracked specimens under uniaxial and biaxial states of stress at room and elevated temperatures, and the extent of material deterioration in stiffened panels. Methods of analyses for crack propagation and residual crack strength are presented and comparisons are made between analysis and test.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.