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- 1Activation energy
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Fall 2017
Approaches for accurate prediction of ductile failure of polyethylene (PE) pipe have been explored using the experimentally determined, material-specific damage parameter D. Although many methods are available for quantifying the D values, they are mainly suitable for metallic materials. For...
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Deformation Transitions and their Effects on the Long-term Performance of Polyethylene and its Pressure Pipe
DownloadFall 2021
Ductile-to-brittle (DB) transition is of tremendous importance for lifetime prediction of polyethylene (PE). Majority of current methods for determining critical stress for the DB transition of PE products use notched coupon specimens in order to shorten the test timeframe. However, those work...
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Polyethylene-based Microfluidic System Approaches to Achieve Adaptive Visible and Thermal Camouflage Applications
DownloadSpring 2024
Camouflage represents a critical skill in both nature and combat zones, as it enables concealment from potential threats. With the advancement of visual and infrared-sensitive surveillance equipment, adaptive camouflage across the visible and infrared (IR) spectrums has become increasingly...
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Fall 2011
A new mechanistic approach is applied to characterizing toughness of low-density polyethylene (LDPE) in ductile fracture, introduced in double-edge-notched tensile (DENT) test. Three mechanisms were involved in the new approach, i.e. fracture surface formation, necking and shear plastic...