Studying the mechanical behavior of metal cores provides insight into the overall performance of structures comprising metal sandwich plates, and can help immensely in designing metal sandwich plates for specific engineering applications. In this study, the response of folded (corrugated) plate and pyramidal truss cores are explored under both quasistatic and dynamic loadings. In particular, tw...

Survival of a plate against an intense, short duration impulsive loading requires the circumvention of failure modes, including those associated with excessive overall deflection and shear-off at supports and webs. All-metal sandwich plates have distinct advantages over comparable weight monolithic plates, especially for intense water loadings. A recently developed mechanics of dynamically load...

Abstract When subjected to bending loads, sandwich panels are highly efficient structural components with the potential achieve substantial weight reduction. A successful design methodology for should aim at maximising this reduction while considering various possible failure mode in a simple yet accurate manner. This paper investigates application of steel as two-way deck systems. Near-optimal...

β-Lactamase residues in milk represent a public health risk. The cylinder plate detection method, which is based on bacterial growth, is laborious and time consuming. In this study, 15 monoclonal antibodies (mAbs) were selected against Temoneira (TEM) 1 β-lactamase. A sandwich enzyme-linked immunosorbent assay (ELISA) based on an optimum mAb pair was developed and validated for the detection of...

A honeycomb is a kind of excellent lightweight structure and sandwich plate with zero Poisson’s ratio (ZPR) core used widely in morphing structures. In this paper, composed analyzed for free vibrations flutter under supersonic airflows. The equivalent elastic parametric formulas the are proposed. models compared their natural frequencies by theoretical finite element methods respectively, which...

A method is proposed to identify the mechanical properties of the skin and core materials of honeycomb sandwich. All the elastic coefficients and loss-factors that matter in the dynamics of a panel in the thick-plate approximation are identified. To this end, experimental natural modes (i.e. eigenmodes of the damped system) are compared to the numerical modes of a large sandwich panel (lx,y/h ≃...

The response of structure under shock is very important. For sandwich structures, the foam other material with good energy absorbing capacity an effective way to enhance ability resist external shock. In this work, numerical analysis conducted for double-layered plate foamed aluminum. deformation process firstly studied in case initial velocity 8.9m/s, then comparative on influence different st...

Composites are nowadays increasingly used in industries such as aerospace, shipbuilding, automotive ... They are lightweight and have a very high specific stiffness, but defects such as delamination, inclusions may occur during their life cycle. Samples of sandwich honeycomb are tested using a 10 MHz central frequency phased array transducer constituted of 128 elements. Different defects are lo...

This paper deals with the multi-pulse chaotic dynamics of a sandwich plate truss core under transverse and in-plane excitations. In order to analyze complicated nonlinear behaviors model by means improved extended Melnikov technique, two-degrees non-autonomous system is transformed into an appropriate form. Through theoretical analysis, sufficient conditions for existence homoclinic orbits crit...

One of the most innovative developments in field advanced materials is sandwich materials. Sandwich material applications need standard requirements to be applied marine structures, especially on ship construction. research conducted a laboratory scale obtain appropriate composition its development. In process developing this material, can damaged. Most damage occurs core which results difficul...