This paper presents a data fusion method between the results of ultrasound using phased array at 5MHz frequency and those obtained through eddy current examination at 1-10MH frequency. The obtained results are compared with destructive tests, a very good correlation being obtained. The effects of delamination over the properties of CFRP are studied using dynamic mechanical analyzer, emphasizing...

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The present study examines the shear performance and modes of failure of rectangular simply supported reinforced concrete (RC) beams designed with shear deficiencies. These members were strengthened with externally bonded carbon fiber reinforced polymer (CFRP) sheets and evaluated in the laboratory. The experimental program consisted of twelve full-scale RC beams tested to fail in shear. The va...

INTRODUCTION Intervertebral spacers are made of different materials, which can affect the postfusion magnetic resonance imaging (MRI) scans. Susceptibility artifacts, especially for metallic implants, can decrease the image quality. This study aimed to determine whether magnesium as a lightweight and biocompatible metal is suitable as a biomaterial for spinal implants based on its MRI artifacti...

Cost-effective rehabilitation and/or strengthening of steel structures currently demanded by the telecommunications industry and transportation departments. Rehabilitation is often required due to crosssection losses resulting from corrosion damage and strengthening may be required due to changes in the use of a structure. Current strengthening techniques, have several disadvantages including t...

The goal of this contribution is the development and configuration of a simulation scenario for 2-D (radioscopic) and 3-D (computed tomography) X-ray inspection setups for CFRP aerostructures. Characteristics taken into account are object shape, defect types, their form and spectral properties. The simulations are carried out using analytical simulation software. The simulation procedure and pr...

This paper presents the development of a CFRP system for strengthening and repair of steel bridges and structures. The research program included development of the strengthening system, investigation of the behavior of strengthened bridges and special structures, and detailing requirements. Based on the research comprehensive guidelines including structural detailing are provided. This paper de...

Short pulsed laser is preferred to avoid the thermal damage in processing the heat sensitive material, such as carbon fiber reinforced plastic (CFRP). In this paper, a numerical model capturing both the material ablation and polymer matrix pyrolysis processes in pulsed laser processing is established. The effect of laser pulse length from ns order to μs order is studied. It was found that with ...

Carbon fiber reinforced polymers strengthen steel structural elements. These structural elements are normally subjected to static, dynamic and fatigue loadings during their life-time. CFRP laminate is commonly used structures under the subjected loads. A number of focused on the characteristics of CFRP sheets members under static, dynamic and fatigue loadings. is a gap in understanding the bond...