We analyze the onset of ‘necking’ and subsequent filament failure during the transient uniaxial elongation of viscoelastic fluid samples in extensional rheometers. In the limit of rapid elongation (such that no molecular relaxation occurs) the external work applied is all stored elastically and the Considère criterion originally developed in solid mechanics can be used to quantitatively predict...

We apply a recently developed 3D flexure model incorporating lateral variations in flexural rigidity (EET) and necking depth (zn) to study the 3D effects of intraplate stresses on Quaternary accelerated subsidence and uplift in the North Sea Basin and adjacent areas. In the model approach lateral variations and magnitude of predicted Quaternary vertical motions are largely dependent on the pre-...

This paper uses X-ray computed tomography to track the mechanical response of a vertebrate (Barnacle goose) long bone subjected to an axial compressive load, which is increased gradually until failure. A loading rig was mounted in an X-ray computed tomography system so that a time-lapse sequence of three-dimensional (3D) images of the bone's internal (cancellous or trabecular) structure could b...

Electrospinning allows the production of fibrous networks for tissue engineering, drug delivery, and wound healing in health care. It enables the production of constructs with large surface area and a fibrous morphology that closely resembles the extracellular matrix of many tissues. A fibrous structure not only promotes cell attachment and tissue formation but could also lead to very interesti...

For modern creep-resistant steels, ductility is primarily controlled by cavitation, since brittle rupture dominating during long-term service. In recent years, the present authors have formulated fundamental models for nucleation and growth of cavities that been verified to be able describe experiments austenitic stainless steels. These equations, together with dislocation creep, are used in th...

The special and unique advantages of explosive forming, has developed its use in different industries. Considering the important influence of improving the current explosive forming techniques on increasing the efficiency and control over the explosive forming procedure, the effects of air and water as the energy-conveying medium, and also their differences will be illustrated in this paper. He...

Ductile polymers have been increasingly applied in engineering applications to enhance the structural reliability under impact loading . Due limitation of experimental setup achieve large tensile deformation and difficulty dynamic force equilibrium, localization post-necking stages up fracture ductile at high strain rates less investigated. In present work, polymeric rods is studied on bespoke ...