CFRP/Al laminate material is widely used in aerospace due to its advantages of light weight and high machinability. For assembling, crowded assembly holes need be drilled for products. However, the damages burr, delamination, tearing appear frequently drilling without precise guidance by mechanical response model. In order reduce machining damages, this paper, a high-reliability model establish...

This paper reports the effects of carbon fiber-reinforced polymer (CFRP) length on the failure process, pattern and crack propagation for a strengthened concrete beam with an initial notch. The experiments measuring load-bearing capacity for concrete beams with various CFRP lengths have been performed, wherein the crack opening displacements (COD) at the initial notch are also measured. The app...

Fiber reinforced polymer (FRP) composites are getting a wide range of application areas in bridge rehabilitations because these materials are less affected by corrosive environmental conditions, known to provide longer life and require less maintenance. However, there are still some concerns about their long-term performance because currently limited data exists. Moreover, the quality control a...

The interlaminar fracture toughness in pure mode II (GIIc) of a Carbon-Fibre Reinforced Plastic (CFRP) composite is characterized experimentally and numerically in this work, using the End-Notched Flexure (ENF) fracture characterization test. The value of GIIc was extracted by a new data reduction scheme avoiding the crack length measurement, named Compliance-Based Beam Method (CBBM). This meth...

A multi-scale modelling strategy is proposed to investigate the potential effects of hygrothermal ageing on ballistic performance CFRP laminates. At micro-scale, damage evolution due cyclic loads simulated a representative microstructure using an adapted fatigue law. Then, results micro-mechanical analysis are used measure predicted transverse crack density and calibrate meso-scale material mod...

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...

The effect of ply thickness on the notch sensitivity and bearing properties carbon fibre reinforced polymer composites their hybrid laminates with steel foils were studied. Laminates thicknesses 0.3 mm 0.03 comprising CFRP manufactured characterized using tension, open hole tension double lap tests. A 25% substitution was found to load extensive plastic deformation in joint while maintaining hi...

The objective of this study was to experimentally evaluate the fatigue limit 90° unidirectional carbon fiber reinforced plastic (CFRP) laminates. very high-cycle properties specimens were evaluated using ultrasonic and electromagnetic testing machines. Ultrasonic tests conducted obtain under giga-cycle regime. specimen geometry designed resonate at 20 kHz, consisted CFRP laminate a metal tab co...