Due to the mismatch of mechanical properties in composite laminates, propagation of delami-nation is considered as a severe damage mechanism in beams with various lay-up configurations. Delamination can be generated due to matrix cracking propagation or it can also be initiated due to the manufacturing process before using composite beams. Using a micromechanics model, this study is aimed to in...

Abstract Purpose In comparison to traditional, constant stiffness laminates, variable composite laminates (VSCL) with curvilinear fibres represent an extra analysis effort. It is the purpose of this work present and test a relatively simple optimisation procedure, in order find maximum fundamental frequency vibration bending in-plane vibrations. also intended explain why certain fibre paths lea...

Thick composite laminates can be used in aerospace and automotive industry replacing metals for weight saving. Increasing the thickness can bring more defects, like voids. This master thesis focuses on the multi-scale voids prediction and their mechanical effect simulation of thick composite laminates manufacturing by Resin Transfer Molding (RTM). It could be potentially used in safe design of ...

The introduction of carbon-fibre reinforced plastics in load bearing automotive structures provides a great potential to reduce vehicle weight and fuel consumption. To enable the manufacture and assembly of composite structural parts, reliable and cost-effective joining technologies must be developed. This thesis addresses several aspects of joining and load introduction in carbon-fibre reinfor...

Expressions were presented which can be used to estimate the strengths of continuous fiber reinforced composite laminates containing pin-loaded holes. The expressions apply to laminates containing either a single pin loaded hole, a single row of pin loaded holes, or two parallel rows of pin loaded holes.

This paper presents a numerical modelling methodology to investigate the thermo-mechanics of carbon reinforced thermoplastic-based laminates in situation mechanical loading combined thermal gradients. It concerns particular case irradiation on one face laminate, where temperature varies both from point laminate and through time, ranges ambient matrix decomposition onset. Temperature is key vari...

This paper studies nonlinear flutter of rectangular variable stiffness composite laminates (VSCLs) subjected to a low supersonic airflow. The VSCLs are formed by different individual laminae where polymeric matrix is reinforced curvilinear carbon fibres. plate’s displacement field follows Third-order Shear Deformation Theory (TSDT); p-version finite element employed discretize the components. A...