Mechanisms of Energy Absorption during High Rate Loading of Cellular Lattice Structures

Matthew Cotton; Ron Winter; Ernie Harris

doi:10.4028/www.scientific.net/AMM.566.244

Paper Titles

Energy Absorption Property of CFRP under Impact Loadings
p.219

Micro-Tomography to Characterize Size Distribution of Fragments Created by Laser Shock-Induced Micro-Spallation of Metallic Sample
p.225

Impact Fracture of Jointed Steel Plates of Bolted Joint of Cars
p.232

High-Velocity Impact between Vehicles and Soft Bodies
p.238

Mechanisms of Energy Absorption during High Rate Loading of Cellular Lattice Structures
p.244

Experimental and Numerical Analysis of Repeated Impacts between Two Spheres
p.250

Modeling of Low Energy, Low Velocity Impact Failure of a Honeycomb Sandwich Material
p.256

Energy and Momentum Transfer to a Clamped Elastic Plate in an Air-Blast
p.262

Partial Destruction of Reinforced Concrete Wall by Small Blasting
p.268

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 566Mechanisms of Energy Absorption during High Rate...

Mechanisms of Energy Absorption during High Rate Loading of Cellular Lattice Structures

Abstract:

A series of experiments at high strain rates have been conducted to study the deformation of lattice structures formed by additive manufacture. Gas gun plate impact experiments have been used to produce the desired conditions, and the transmitted wave profile analysed for information on the lattice compression and deformation. Additional pre-and post-experiment imagery of the lattice has also been gathered. These experiments have been supported by a series of calculations to offer comparisons to experimental data and to assist in the design and optimisation of new structures. Of particular interest are the variations seen at high (10⁶) strain rates, where severe hydrodynamic flow appears to become significant. This may have implications for the design of open cell structures which are expected to experience high rate conditions.

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Periodical:

Applied Mechanics and Materials (Volume 566)

Pages:

244-249

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.566.244

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Online since:

June 2014

Authors:

Matthew Cotton*, Ron Winter, Ernie Harris

Keywords:

Additive Manufacture, Gas Gun, Lattice, SLM

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