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Mechanical characterization of strain-rate-dependent polyurethane foams


The primary goal of this project was to develop methods to support the creation of a constitutive model for strain-rate-dependent foams. These foams, such as PORON XRD, are often used for impact protection and other similar mechanical tasks; however, their behavior is poorly understood, and robust continuum models are not currently sufficient. This project utilized DIC (Digital Image Correlation) to measure strain of foam specimens, and this was correlated with load data from an Instron load frame. The bulk of the work consisted of finding the configuration that would work best for data collection, with different speckle patterns, cameras, lenses, and framerates being explored. This project aimed to collect data at the 10-1, 10-2 , and 10-3 1/second strain rates


Petersen, Matthew, "Mechanical characterization of strain-rate-dependent polyurethane foams" (2015). Summer Research Symposium. Brown Digital Repository. Brown University Library.



  • Summer Research Symposium

    Each year, Brown University showcases the research of its undergraduates at the Summer Research Symposium. More than half of the student-researchers are UTRA recipients, while others receive funding from a variety of Brown-administered and national programs and fellowships and go …