We present an experimentally-based failure criterion for symmetric two-ply plain-weave laminates of carbon-fiber reinforced plastic. The criterion is formulated in terms of six force and moment stress resultants and consists of a set of three inequalities, related to in-plane, bending, and combined in-plane and bending types of failure. All failure parameters in the criterion are measured direc...

For brittle fracture behaviour of carbon fibre reinforced plastics (CFRP) under compression, several approaches exist, which describe different mechanisms during failure, especially at stress intensifications. The failure process is not only initiated by the buckling fibres, but a shear driven fibre compressive failure beneficiaries or initiates the formation of fibres into a kink-band. Startin...

The use of interleaving material with viscoelastic properties is one the most effective solutions to improve damping capacity carbon fibre-reinforced polymer (CFRP) laminates. Improving composite without threatening mechanical performance challenging and nanomaterials should lead target. In this paper, effect a nanostructured interlayer based on graphite nanoplatelets (GNPs) fracture toughness ...

In recent decades, the application of fibre-reinforced polymer (FRP) composites for strengthening structural elements has become an efficient option to meet the increased cyclic loads or repair due to corrosion or fatigue cracking. Hence, the objective of this study is to explore the existing FRP reinforcing techniques to care for fatigue damaged structural steel elements. This study covers the...

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...

This manuscript studied the effect of U-CFRP wrapped sheet anchorage on flexural performance unbonded post-tensioned PC members subjected to partial strand damage and strengthened using CFRP Near-Surface Mounting techniques. The program includes six girders as a control girder, girder with 14.2%, four by laminates NSM technique without anchorages. testing results show that 14.2% has reduced str...

Abstract Fibre metal laminates (FMLs) are attractive construction materials, especially for use in aerospace and transport facilities. Throughout their service life, thin-walled structures made of FMLs exposed to static dynamic loads, as well corrosion the unfavourable influence environmental conditions. The paper presents an experimental analysis combined mechanical long-term behaviour carbon-...

The growing use of composite materials for aerospace applications has resulted in the need quantitative methods to analyze components. Ultrasonic guided waves constitute physical approach nondestructive evaluation (NDE) and structural health monitoring (SHM) solid materials, such as carbon fiber reinforced polymer (CFRP) laminates. Ultrasound based NDE are commonly used field, but ultrasonic wa...