Posted in | Materials Analysis

Indentation University Session 13: Mechanics of Plasticity

In Session 13 of the KLA Instruments Indentation University series, a theoretical approach to the mechanics of plasticity is discussed, including the influence of contact mechanics on plasticity.

About This Webinar

Session 13 covers the motivation for characterizing the mechanics of plasticity using nanoindentation, and how to use contact mechanics to express the stresses that arise from contact. Finite element analysis is applied to spherical indenters, assuming Hertzian contact, with simulated indentations into sapphire. There is also discussion of the influence of indenter tip radius on plastic deformation. Bonus commentary on contact mechanics for scratch testing.

Note: for Session 13, it is recommended to view the following Indentation University webinars as background for the discussion:

Watch a short clip from the webinar below:

Attend this Indentation University Webinar and You Will:

  • Understand the motivation for the mechanics of plasticity
  • Understand why hardness measurement is dependent on material plasticity
  • Learn how indenter geometry informs the hardness measurement
  • Learn about the Tresca criterion and its relation to plasticity and shear stress
  • Learn about the theory of Hertzian contact
  • Understand how indenter tip radius influences plastic deformation

About the Speaker

Jennifer Hay is a Senior Applications Scientist for KLA Instruments, specializing in nanoindentation. Prior to joining KLA, she held similar positions at Nanomechanics, Keysight, Agilent, and MTS Systems Corporation. Jennifer has worked in the field of nanoindentation since 1996, advancing standardization while also developing methodology for new applications including thin films, polymers, gels, and biomaterials. Mrs. Hay served as the chair for the MEMS/Nanomechanics technical division of the Society of Experimental Mechanics (SEM), and she has authored many journal articles on nanoindentation, including an invited feature series in the SEM journal Experimental Techniques.

Who Should Attend

If you are a materials researcher, scientist or engineer interested in learning about the theory of plasticity and contact mechanics, then this webinar is for you.

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