An energy approach for the analysis of the mechanical response of three-dimensional elastic curvilinear fibers is proposed. Equivalent tangent stiffnesses and compliances are defined relating generalized displacements with applied loads in terms of both direct and mutual moduli. Many numerical applications are developed in order to investigate about the influence of fiber geometric parameters, addressing also large-displacement cases by means of an incremental formulation. Finally, considering planar fibers, explicit relationships for tangent and secant equivalent along-the-chord elastic moduli are deduced, leading to useful and direct expressions for the analysis and the design of composite materials reinforced by curvilinear elastic fibers.
Maceri, F., Marino, M., Vairo, G. (2009). Mechanical behaviour of curvilinear elastic fibers: An energy approach. In Atti del XXXVIII Convegno nazionale associazione italiana per l'analisi delle sollecitazioni AIAS 2009. Torino.
Mechanical behaviour of curvilinear elastic fibers: An energy approach
MACERI, FRANCO;Marino, M;VAIRO, GIUSEPPE
2009-09-01
Abstract
An energy approach for the analysis of the mechanical response of three-dimensional elastic curvilinear fibers is proposed. Equivalent tangent stiffnesses and compliances are defined relating generalized displacements with applied loads in terms of both direct and mutual moduli. Many numerical applications are developed in order to investigate about the influence of fiber geometric parameters, addressing also large-displacement cases by means of an incremental formulation. Finally, considering planar fibers, explicit relationships for tangent and secant equivalent along-the-chord elastic moduli are deduced, leading to useful and direct expressions for the analysis and the design of composite materials reinforced by curvilinear elastic fibers.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
