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Title: The effect of perforations on the stress wave propagation characteristics of multilayered materials
Authors: Taşdemirci, Alper
Kara, Ali
Keywords: Dynamic loading
Multilayer materials
Split Hopkinson Pressure Bar
Stress wave propagation
Finite element method
Publisher: SAGE Publications Inc.
Source: Taşdemirci, A., and Kara, A. (2016). The effect of perforations on the stress wave propagation characteristics of multilayered materials. Journal of Thermoplastic Composite Materials, 29(12), 1680-1695. doi:10.1177/0892705715584409
Abstract: The effect of perforated interlayers on the stress wave transmission of multilayered materials was investigated both experimentally and numerically using the Split Hopkinson pressure bar (SHPB) testing. The multilayer combinations consisted of a ceramic face plate and a glass/epoxy backing plate with a laterally constrained low modulus solid or perforated rubber and Teflon interlayer. The perforations on rubber interlayer delayed the stress rise time and reduced the magnitude of the transmitted stress wave at low strains, while the perforations allowed the passage of relatively high transmitted stresses at large strains similar to the solid rubber interlayer. It was concluded that the effect of perforations were somewhat less pronounced in Teflon interlayer configuration, arising from its relatively low Poisson's ratio. It was finally shown that SHPB testing accompanied with the numerical simulations can be used to analyze the effect of compliant interlayer insertion in the multilayered structures. © The Author(s) 2015.
ISSN: 0892-7057
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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