Dynamic behavior of geometrically complex hybrid composite samples in a Split-Hopkinson Pressure Bar system (bibtex)

by M. Pouya, S. Balasubramaniam, S. Sharafiev, M. F.-X. Wagner

@Article{Pouya2018,
  author    = {Pouya, M. and Balasubramaniam, S. and Sharafiev, S. and Wagner, M. F.-X.},
  title     = {Dynamic behavior of geometrically complex hybrid composite samples in a Split-Hopkinson Pressure Bar system},
  journal   = {{IOP} Conference Series: Materials Science and Engineering},
  year      = {2018},
  volume    = {373},
  pages     = {012025},
  month     = {jun},
  abstract  = {The interfaces between layered materials play an important role for the overall
mechanical behavior of hybrid composites, particularly during dynamic loading. Moreover, in
complex-shaped composites, interfacial failure is strongly affected by the geometry and size of
these contact interfaces. As preliminary work for the design of a novel sample geometry that
allows to analyze wave reflection phenomena at the interfaces of such materials, a series of
experiments using a Split-Hopkinson Pressure Bar technique was performed on five different
sample geometries made of a monomaterial steel. A complementary explicit finite element
model of the Split-Hopkinson Pressure Bar system was developed and the same sample
geometries were studied numerically. The simulated input, reflected and transmitted elastic
wave pulses were analyzed for the different sample geometries and were found to agree well
with the experimental results. Additional simulations using different composite layers of steel
and aluminum (with the same sample geometries) were performed to investigate the effect of
material variation on the propagated wave pulses. The numerical results show that the reflected
and transmitted wave pulses systematically depend on the sample geometry, and that elastic
wave pulse propagation is affected by the properties of individual material layers.},
  doi       = {10.1088/1757-899x/373/1/012025},
  publisher = {{IOP} Publishing},
}