The mechanical response and fracture of metal sandwich panels subjected to multiple impulsive pressure loads (shocks) were investigated for panels with honeycomb and folded plate core constructions. The structural performance of panels with specific core configurations under multiple impulsive pressure loads is quantified by the maximum transverse deflection of the face sheets and the core crus...

Experimental studies were conducted to determine if the stresses occurring during manufacturing process of Fiber Metal Laminates (FML) cause irreversible damage electronic components. This is especially interesting for systems be embedded into such FML later structural health monitoring purposes. Depending on requirements used prepreg material, required temperatures and pressures can quite high...

Transfemoral sockets were originally constructed from wood or hard plastic laminates (Radcliffe, 1955). More recently, thermoplastics and acrylic resins with carbon fiber or other woven materials have been used (Ng, 2002). Although these materials achieve suitable load transmission between the residual limb and the prosthesis, their rigidity prevent the sockets from dynamically conforming to ch...

Fiber Bragg grating(FBG) sensors, one of the fiber optic sensors(FOS), based on the wavelength division multiplexing(WDM) technology are ideally suitable for structural health monitoring of composite materials and structures. Proper monitoring of measurands in FBG sensor systems requires accurate measurement of the Bragg center wavelength, and the ability to track rapid shifts of the wavelength...

effects were studied of 200 ppm silver and copper nano-suspensions, with size range from 20 to 80 nm, on the hardness of particleboards produced at an industrial scale at the iran-choob factory, iran. metal nano-suspensions were added to the mat at two levels of 100 and 150 milli-liters/kg dry weight wood particles, and the results were compared with those of the control panels. results showed ...

Abstract Laminates made of metal—glass fiber-reinforced polymers—metal layers require material parameters for each constitutive model the constituents. First, although parameter identification metallic materials has been frequently discussed, stepwise in terms uncertainties previously determined is investigated by concept error propagation. Second, calibration a orthotropy describing large defo...

Advanced composites, particularly high modulus laminates, are often susceptible to transverse impact loading. Major damage introduced due to low velocity impact include matrix cracking, fiber break and delaminations. Such flaws tend to reduce residual strength of the material and may cause catastrophic failure when the material is subjected to higher operating loads [1,2]. Unfortunately, these ...