Press "Enter" to skip to content

Adiabatic shear localization : occurrence, theories and by coll. PDF

By coll.

Show description

Read Online or Download Adiabatic shear localization : occurrence, theories and applications PDF

Similar nanostructures books

Download PDF by Colin Milburn: Nanovision: engineering the future

The dawning period of nanotechnology can provide to rework existence as we all know it. Visionary scientists are engineering fabrics and units on the molecular scale that may perpetually adjust the best way we predict approximately our applied sciences, our societies, bodies, or even truth itself. Colin Milburn argues that the increase of nanotechnology consists of a manner of considering the fact that he calls “nanovision.

Download e-book for iPad: Nanostructured Materials and Nanotechnology: Ceramic and by Sanjay Mathur, Mrityunjay Singh, Jonathan Salem, Dongming

Papers from the yankee Ceramic Society's thirty first foreign convention on complicated Ceramics and Composites, held in Daytona seashore, Florida, January 21-26, 2007. themes comprise synthesis, fictionalization, processing, and characterization of nanomaterials; structure-property correlations at nanometer size scales; bio- and magnetic nanomaterials; basics in nanoscale platforms and techniques; nanostructured fabrics for chemical mechanical planarization, exhibit, future health and beauty purposes; nanotubes and nanowires, nanolithography, and business improvement of nanomaterials.

Download e-book for kindle: Metal nanoparticles for catalysis : advances and by Feng Tao; James J Spivey; Royal Society of Chemistry (Great

Catalysis is a critical subject in chemical transformation and effort conversion. due to the brilliant achievements of colloidal chemistry and the synthesis of nanomaterials over the past 20 years, there have additionally been major advances in nanoparticle catalysis. Catalysis on diverse steel nanostructures with well-defined buildings and composition has been commonly studied.

Additional resources for Adiabatic shear localization : occurrence, theories and applications

Example text

The hat specimen is often used by Meyers [28À31] and Beatty et al. 9). The advantage of the hat-shaped test is that it can be used to produce shear bands even in very ductile materials in a Hopkinson Compression Set-up and that a comparison between small and larger failure strains can be made [33]. Due to the geometry, very high strains at high strain rates can be reached, but the shear-stress measurement is influenced by edge effects. The shear deformability can be measured and assessed. To investigate the microstructure of shear band formation, the displacement of the hat specimen can be limited easily in the axial direction by using stopper rings.

As the result of this test, it can be determined whether or not there is an occurrence of adiabatic shear failure. 22 Dependence of compression/shear stress ratio in a compression/shear specimen at two different locations, according to Meyer and Halle [85]. 23 Influence of inclination of the compression/shear specimen on failure strain performed in a drop-weight test, according to Meyer et al. [86]. 24 Compression stressÀstrain behaviour of two tempering conditions at bi-axial compression/shear test at static and dynamic loading, according to Pursche [36].

Compression Test The dynamic compression test method is used frequently to test the susceptibility of materials to the occurrence of adiabatic shear failure. Only a simple specimen geometry is necessary, and the results are straightforward for engineers. Test rigs such as the split-Hopkinson pressure bar (SHPB) and the drop-weight tower are common. 18), strain rates of up to 104 s21 are possible by use of small specimens (about 1 mm long). A further assembly can be a gas or electromagnetic gun, which can provide a very high loading velocity, strain rates up to 106 s21 and high pressure.

Download PDF sample

Adiabatic shear localization : occurrence, theories and applications by coll.

by Ronald

Rated 4.37 of 5 – based on 6 votes