Advanced Use of a Split Hopkinson Bar Setup for the Extended Characterization of Multiphase Steel Sheets

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

Advancements in the Split Hopkinson Bar Test

High Rate Characterization of Low Impedance Materials Using a Polymeric Split Hopkinson Pressure Bar

The characterization of soft or low impedance materials is of increasing importance since these materials are commonly used in impact and energy absorbing applications. There is a need to measure the high-rate material properties of soft materials, where the mode of loading is predominantly compressive and large deformations may occur at high rates of deformation. Importantly, the competing eff...

Using the split Hopkinson pressure bar to validate material models.

This paper gives a discussion of the use of the split-Hopkinson bar with particular reference to the requirements of materials modelling at QinetiQ. This is to deploy validated material models for numerical simulations that are physically based and have as little characterization overhead as possible. In order to have confidence that the models have a wide range of applicability, this means, at...

Stress Equilibrium in the Split Hopkinson Pressure Bar Test

The compressive split Hopkinson pressure bar (SHPB) technique allows the stresses on each end of the specimen to be measured individually. Results are presented showing a large difference between these end pressures, depending on specimen length and loading rate. The mechanisms responsible are shown to be a combination of inertial forces and non-uniform deformation due to wave propagation. Impl...