FURI | Spring 2020

Analysis of PMMA Plastic Zone Size

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In this project, the size of the plastic zone in polymethyl methacrylate (PMMA) was measured as it changes with respect to temperature.  A windowed fixture was developed to hold heating elements near the sample during tensile testing on a precracked fracture specimen.  The size of the plastic zone was measured by digital image correlation as a function of the material temperature. The data from this research is useful for understanding toughening mechanisms in glassy materials under high rate deformation.

Student researcher

Cole Truitt

Mechanical engineering

Hometown: Glendale, Arizona, United States

Graduation date: Spring 2022

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