Abstract: Initial imperfections of columns are often assumed to have the shape of the first buckling mode. In this technical note, the imperfection has the shape of the second mode. An elastica analysis is performed, and numerical ...

Abstract: A high precision technique for measuring Poisson’s ratios of elastomers was experimentally implemented. Test fixtures consisted of hollow metal cylinders fitted with matching pairs of pressure ...

Abstract: Many premature failures in proton exchange membrane (PEM) fuel cells are attributed to crossover of the reactant gas from microcracks in the membranes. The formation of these microcracks is ...

Abstract: The addition of adhesives to resist uplift wind forces at the roof framing-to-sheathing connection was tested. Two specimen configurations were used to compare the tensile resistance of typical nail connections to that of ...

Abstract: Long-term durability of the membrane electrode assembly (MEA) in proton exchange membrane (PEM) fuel cells is one of the major technological barriers to the commercialization of fuel cell vehicles. ...

Abstract: The use of pressurized blister specimens to characterize the biaxial strength and durability of proton exchange membranes (PEMs) is proposed, simulating the biaxial stress states that are induced ...