Control of the Internal Stresses in Plane Elasticity

摘要

A circular domain is subjected to radial surface forces varying according to asinusoidal law. The existence of a tensile region included in a purely compressive one is proven and its asymptotic behavior studied when the surface forces converge to two concentrated loads acting along a same diameter. The results show that any maximum principle for the principal stress components would require conditions stronger than the simple negativity of both on the boundary of the domain.