in this paper dynamic analysis (modal-method) of sandwich contructions have been studied. for this purpose a computer program was developed that could analyse the sandwich construction's dynamics. by using the program, one can find the natural frequencies, the normal modes and dynamic response of the free and forced vibrations.by solving few problems in this article, we have illustrated th...

Composite materials are widely employed in the naval, aerospace and transportation industries owing to the combination of being lightweight and having a high modulus of elasticity, strength and stiffness. Drilling is an operation generally used in composite materials to assemble the final product. Damages such as the burr at the drill entrance and exit, geometric deviations and delamination are...

We compared the mechanical properties of carbon fibre composite bone plates with those of stainless steel and titanium. The composite plates have less stiffness with good fatigue properties. Tissue culture and small animal implantation confirmed the biocompatibility of the material. We also present a preliminary report on the use of the carbon fibre composite plates in 40 forearm fractures. All...

Composite sandwich materials have yet to be widely adopted in the construction of naval vessels despite their excellent strength-to-weight ratio and low radar return. One barrier to their wider use is our limited understanding of their performance when subjected to air blast. This paper focuses on this problem and specifically the strength remaining after damage caused during an explosion. Carb...

In steel structures, a lot of attention is paid to lightweight i.e. reduction dead load without compromising structural safety, integrity and performance. Thanks modern aluminium foam sandwich panel manufacturing technology new possibility became available for design. Assessment understanding the behaviour this under in-plane compression or flexure crucial before its application in structures. ...