Abstract: Polyurethane foams have been used for their shock-absorption properties in various packaging applications. In many lightweight structural applications, polyurethane foams are used as the core material in sandwich beams or ...

Abstract: For structures deployed in space using cables in which vibration damping is critical for structural stability, the understanding of cable damping is particularly significant to the structural performance. This paper describes ...

Abstract: This paper describes the development of a technique based on acoustic emission (AE) technology that can be used for global nondestructive evaluation (NDE) of steel structures. This will also be useful for the subsequent ...

Abstract: Fiber reinforced plastic (FRP) composites (E-glass, carbon fiber, polyester, and epoxy matrix) were fabricated using “pultrusion,” a cost-effective process for manufacturing fiber/matrix composites. Investigation of the ...

Abstract: Mixed‐mode crack initiation and propagation starting from the aggregate‐matrix interface in concrete under uniaxial compression was investigated using fracture mechanics approach, finite element modeling, and holographic ...

Abstract: A three‐dimensional plasticity model is developed for foams and honeycombs. The model accounts for the transverse isotropy of foams and the orthotropy of honeycombs by incorporating a shift on stress that provides a yield ...

Abstract: Fracture mechanics was used to evaluate failure of the rib/skin connection of composite “isogrids.” The energy derivative method was used to determine the strain energy release rate (

Abstract: Rigid, closed-cell, polyurethane foams possess excellent energy-absorbing properties and are used as impact limiters for various packaging applications. They can absorb large quantities of energy as they transmit a stress ...