Kolsky Compression Bar Experiments on Brittle Materials

Chapter
Part of the Mechanical Engineering Series book series (MES)

Abstract

Many brittle materials deform in a manner of nearly linear elasticity until failure at small strains. As specimens in Kolsky-bar experiments, these materials are extremely sensitive to stress concentrations due to bar misalignment or non-parallel loading surfaces. To deform a linear elastic specimen at a constant strain rate, a loading pulse with constant stress rate is needed. This chapter describes the characteristics of brittle specimens, introduces the modifications to Kolsky bar necessary to achieve the desired and valid testing conditions on the specimen, and outlines the design of Kolsky compression bar experiments on brittle materials with step-by-step examples.

Keywords

Carbide Petroleum Epoxy Brittle Tungsten 

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Copyright information

© Springer US 2011

Authors and Affiliations

  1. 1.School of Aeronautics and Astronautics School of Materials EngineeringPurdue UniversityWest LafayetteUSA
  2. 2.Department of Mechanics of MaterialsSandia National LaboratoriesLivermoreUSA

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