Ultrasonic damage detection and characterization is commonly used in nondestructive evaluation (NDE) of aerospace composite components. In recent years there has been an increased development of guided wave based methods. In real materials and structures, these dispersive waves result in complicated behavior in the presence of complex damage scenarios. Model-based characterization methods utili...

The paper deals with the modelling and analysis of thick piezoelectric multilayer composite shell continua applied to accurate and optimal design of adaptive (smart) structural components and systems in industrial applications. The smart composite is made of n laminae, in which each lamina can be used as either actuator, sensor, self-sensing actuator, or passive structural component. A discrete...

No- or minimal-preparation veneers associated with enamel preservation offer predictable results in esthetic dentistry; indirect additive anterior composite restorations represent a quick, minimally invasive, inexpensive, and repairable option for a smile enhancement treatment plan. Current laboratory techniques associated with a strict clinical protocol satisfy patients' restorative and esthet...

To cite: Goswami M, Chattopadhyay S, Arora R, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2012008419 DESCRIPTION Treating the patient with amelogenesis imperfecta is important for functional and psychosocial reasons, especially when the child is suffering with the anomaly in its primary as well as permanent teeth as such conditions cause a deep psycholo...

Based on a phenomenological methodology, a three dimensional (3D) thermochemical model was developed to predict the temperature profile, the mass loss and the decomposition front of a carbon-reinforced epoxy composite laminate (T700/M21 composite) exposed to fire conditions. This 3D model takes into account the energy accumulation by the solid material, the anisotropic heat conduction, the ther...

Abstract A framework for damage modelling based on the fast Fourier transform (FFT) method is proposed to combine variational phase-field approach with a cohesive zone model. This combination enables application of FFT methodology in composite materials interfaces. The voxel technique laminate model adopted this purpose. frictional incorporated describe fracture behaviour interface including sl...

A large number of bridges in the federal inventory are reaching the end of their design life due to aging and environmental degradation. The situation is aggravated by increased traffic needs that require existing structures to carry heavier loads at increasingly higher speeds. Project Summary: The issue of moisture diffusion in composite materials is important because of its associated problem...