0000000001105560
AUTHOR
Ferdinando Stassi-d'alia
Limiting conditions of yielding for anisotropic materials
The known Limiting Conditions of Yielding presuppose homogeneity andisotropy of the material. Formulas for anisotropic materials have been proposed: but they cannot be applied to all practical applications. The Limiting Condition of Yielding already proposed by the A. for isotropic materials can easily be extended to materials with different mechanical properties in different directions: the formulas obtained confirm the particular cases and the particular formulas already known for isotropic materials. The various solutions proposed by the A. for anisotropic bodies are usually represented by paraboloids whose characteristics obviously depend on the experimental parameters.
Flow and fracture of materials according to a new limiting condition of yelding
In general the theories on “conditions of plastification” known up till now (Tresca, v. Mises, and others) have only taken into consideration the characteristics of resistance to simple tension and compression, when dealing with structures called upon to resist mainly to tension and compression respectively, without taking into account the inherent resistance to tension and compression respectively of the material employed; this contributory factor is particularly important, especially where the exigencies are very considerable. The theory that we are about to consider has been largely confirmed in the experimental field. Applications to the study of hollow cylinders and hollow spheres serv…