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Journal Articles Journal of Elasticity Year : 1998

Generalized Poynting Effects in Predeformed Prismatic Bars


We use the Signorini expansion method to determine the second-order Saint-Venant solution for an infinitesimally bent and stretched bar. The bar in the unstressed reference configuration is straight, prismatic, isotropic, homogeneous and made of a second-order elastic material. These solutions and those found earlier for a pretwisted bar give generalized Poynting effects. A bar when bent stretches and the elongation is determined by the first and second-order elasticities, area of crosssection, torsional rigidity, bending vector and the inertia tensor. When an infinitesimally twisted bar is deformed, there is a second-order bending deformation even when there is no resultant bending moment applied on the end faces.
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hal-00503134 , version 1 (16-07-2010)


  • HAL Id : hal-00503134 , version 1


Francesco Dell'Isola, Giuseppe C. Ruta, Romesh C. Batra. Generalized Poynting Effects in Predeformed Prismatic Bars. Journal of Elasticity, 1998, pp.16. ⟨hal-00503134⟩


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