The initiation and propagation of adiabatic shear bands (ASBs) in functionally graded materials (FGMs) deformed at high strain rates in plane-strain tension have been studied. An ASB is a narrow region, usually a few micrometers wide, of intense plastic deformation that forms after softening of the material due to its being heated up and the evolution of damage in the form of porosity has overc...

in this work, dynamic mechanical properties of three high-manganese steels with trip/twip or fully twip characteristics are studied. high strain rate experiments in the range of true strain rates between ~500 and 1800 /s are conducted using a dynamic torsional testing setup. all the three steels show a positive strain rate sensitivity in the intermediate range of strain rates (up to 500 /s). bu...

A novel variable temperature rolling (VTR) and annealing process was conducted on a metastable austenitic stainless steel. Strain softening occurred during tensile straining in both cold rolled cryogenic rolled-annealed steels, leading to low uniform elongations of only 2-3%. In contrast, thanks the dual-phase heterogeneous lamellar structure achieved via VTR process, ultra-high strength over 1...

Actin filament networks enable the cytoskeleton to adjust to internal and external forcing. These dynamic networks can adapt to changes by dynamically adjusting their cross-links. Here, we model actin filaments as cross-linked elastic fibers of finite dimensions, with the cross-links being approximately 1 mum apart, and employ a full three-dimensional model to study their elastic properties by ...

Nanomaterials are widely used in different fields, such as microelectronics, industry, and nanocomposites, they can exhibit unstable deformation behaviour depending on the strain rates. Under rates of 10−4–10−1 s−1, nanomaterials, unlike quasi-static micromaterials, is characterized by presence rate sensitivity a possible scale phenomenon dynamic plasticity. In this paper, relaxation model plas...