Fire - mechanical behaviour of sandwich composite beam

Structural behaviour of composite sandwich panels

Damage detection in a sandwich composite beam using wavelet transforms

There is a growing interest in developing non-destructive damage detection methods for damage assessment of composite structures, especially in the aerospace and marine industries. Although damage detection of composite laminates has been widely investigated, little work has been carried out on sandwich composite configurations. A technique using the Lipschitz exponent, which is estimated by wa...

Cohesive Mixed-mode Damage Model Applied to the Simulation of the Mechanical Behaviour of a Repaired Sandwich Beam

Delamination caused by low velocity impact is one of the most frequent cases of damage in sandwich composite materials. When delamination is present the ability of the material to withstand structural loading is limited [1, 2]. In many cases, a local repair of a damaged sandwich structure is preferable over replacement for economical, mechanical and environmental reasons. Bonded repairs are wid...

Numerical Calibration of Mechanical Behaviour of Composite Shell

Composite shell linings consist of primary and secondary sprayed concrete linings separated by a layer of spray-applied waterproofing membrane. In order to design such a lining configuration, a calibrated numerical simulation approach is needed and the impact of interface properties on the composite mechanical behaviour should be understood. A programme of laboratory tests was carried out on be...

Mechanical behavior of carbon fiber composite lattice core sandwich panels fabricated by laser cutting

This paper presents a novel method for rapid fabrication and prototyping of low-density carbon fiber sandwich panel cores based on laser beam cutting (LBC). Using LCB, sandwich panels with lattice core constructions with oblique and vertical strut morphologies were fabricated from two fiber-orientation architectures. Scanning electron microscopy images illustrate the relatively small extent of ...