The virtual assessment of a composite machining process using finite element (FE) models constitutes cost-effective solution to study the surface quality machined parts. Thus, correct simulation chip fracture becomes essential obtain consistent numerical results. This work develops an original FE approach emulate formation in carbon fibre reinforced polymer (CFRP) laminates. Composite damage in...

BACKGROUND Biaxial (BX) and triaxial (TX) composite laminates with ±45° angled plies have been widely used in wind turbine blades. As the scale of blades increases, BX and TX laminates with shallow-angled plies (i.e. off-axis ply angle <45°) might be utilized for reducing mass and/or improving performance. The compressive properties of shallow-angled BX and TX laminates are critical considering...

The Bruggeman formalism provides an estimate of the effective permittivity of a particulate composite medium comprising two component mediums. The Bruggeman estimate is required to lie within the Wiener bounds and the Hashin–Shtrikman bounds. Considering the homogenization of weakly dissipative component mediums characterized by relative permittivities with real parts of opposite signs, we show...

Machining of Nomex® honeycomb materials is the biggest challenge in industry because complex forms and geometry structure. The latter characterized by a low density with orthotropic mechanical behavior. thin walls composite structure make shaping this material very difficult. Studying interactions between cutting tool material, forces, chip formation allow to understand machining process honeyc...

Abstract Out-of-plane mechanical properties of the riveted joints restrict performance wing box assembly airplane. It is necessary to investigate pull-through composite/metal in order guide riveting design and ensure safety assembly. The progressive failure mechanism composite/aluminum joint subjected loading was investigated by experiments finite element method. A damage model based on Hashin-...

The applicability of several fatigue damage models for polyether ether ketone (PEEK) under mean strain and variable amplitude multi-block loadings is evaluated. The models utilized in this study are assessed against experimental data for PEEK under various cyclic loading conditions, including (1) constant amplitude loading with non-zero mean strains, (2) two-block loading with zero and non-zero...

Abstract: It is easy for composite laminates to be damaged by relative lower velocity impact which could give rise to internal delamination that will strongly weaken the compressive strength of laminates. In order to predict the occurrence of matrix failure, the elastic-brittle behaviors of fiber-reinforced composites were modeled constitutively by an anisotropic damage model. The dynamic tensi...

Composite propellers offer high damping characteristics and corrosion resistance when compared with metal propellers. But the design of a hybrid composite propeller with the same strength of metal propeller is the critical task. For this purpose, the present paper focusses on fluid-structure interaction analysis of hybrid composite propeller with Carbon/Epoxy, R-Glass/Epoxy and S2-Glass/Epoxy t...