Nonlinear bending behavior of 3D braided rectangular plates subjected to transverse loads in thermal environments

Abstract

Nonlinear bending behavior of 3D braided rectangular plates subjected to transverse loads is investigated. A new micro-macro-mechanical model of unit cells is suggested. In this model, a 3D braided composite may be considered as a cell system and the geometry of each cell is deeply dependent on its position in the cross-section of the plate. The material properties of the epoxy are expressed as a linear function of temperature. Based on Reddy's higher-order shear deformation plate theory and general von Kármán-type equations, analytical solutions for nonlinear bending behavior of simply supported 3D braided rectangular plates are obtained using mixed Galerkin-perturbation method. The numerical examples concern effects of geometric parameters, of fiber volume fraction, braiding angle and load boundary condition.

Energy absorption behaviors of 3D braided composites under impact loadings with frequency domain analysis

“…Jiang et al predicted the mechanical properties of 3D braided composites using a helix geometry model. Li et al studied the nonlinear bending behavior of 3D braided composite under transverse loading in thermal environments. Zhu and coworkers systematically studied the mechanical properties of 3D four‐directional, six‐directional, and seven‐directional braided composite.…”

Transverse tensile damage behaviors of three-dimensional five-directional braided composites by meso-scale finite element approach

“…From the literature study, it is evident that information about the transverse properties of 3D braided composites is very limited. [27][28][29][30] Here, a RVC is chosen to evaluate the damage behaviors of 3D five-directional braided composites subjected to transverse tensile loading. First, based on the realistic geometry cross sections, the RVCs of 3D five-directional braided composites with two kinds of internal braiding angles, 30 and 45 , are established in the next section 2.…”

Thermal-mechanical coupling modeling of 3D braided composite under impact compression loading and high temperature field

“…In addition to the above thermo-mechanical analysis mainly about the experimental characterization, Li et al [10][11][12] carried out the postbuckling analysis of 3D braided composite by numerical analysis method under axial compression and torsion in thermal environments, as well as the nonlinear bending behavior analysis. Li [13] also studied the thermal postbuckling behavior of 3D braided beams with initial geometric imperfection under different type temperature distributions.…”