This work investigated how the structure size affects quasi-static and fatigue behaviors of graphene polymer nanocomposites, a topic that has been often overlooked. The results showed both failure these materials scale nonlinearly with due to presence significant fracture process zone (FPZ) ahead crack tip induced by nanomodification. Such complicated effect scaling in either or scenario cannot...

fast fracture is one of the major failure modes in brittle polymers. generally, crack growth in these polymers may occur under combined tensile-shear loading. however, the fracture test data reported previously for some dental restorative resins can not be predicted by using the available fracture criteria.in this paper, a modified fracture criterion is used for estimating the fracture load for...

I read with interest the case report (Spielberg and van Denbrink, Eur Respir J., 1, 471-472) from Davos on a patient with brittle asthma treated with a continuous infusion of theophylline. I was surprised to see that our paper on the treatment of brittle asthma with continuous subcutaneous infusions of terbutaline was not referred to [1]. Since that preliminary study which showed excellent cont...

Three principal methods used to study stresses in materials are photoelastic stress analysis, brittle lacquer-coating techniques, and electronic strain gauges. A number of studies have been conducted using models and the photoelastic method' to examine stress patterns in oneand two-surface inlays, complete dentures, teeth and supporting bone, and rests used in partial dentures. Strain gauges4 9...