The sensitivity of the tensile properties of PMMA, Kevlar® and Dyneema® to temperature and strain rate. (26th May 2021)

• Record Type: Journal Article
• Authors: Zhou, Junyi; Heisserer, Ulrich; Duke, Phillip W.; Curtis, Paul T.; Morton, John; Tagarielli, Vito L.
• Is Part Of: Polymer. Volume 225(2021)
• Publication Date: 2021-05-26
• Subjects: Strain rate -- Temperature -- Fibres -- Composites; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2021.123781
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: We employed a new test technique to measure the tensile response of PMMA, Kevlar® and Dyneema® products at strain rates ranging from 10 −4 to 323 s −1 . We then extended this technique to allow quasi-static measurements at temperatures in the range −40 to 70 °C. We characterised a monolithic polymer blend, a Kevlar® 49 fibre yarn, a Dyneema SK75 yarn and a Dyneema® tape, exploring the effects of temperature and strain rate on their tensile responses. The sensitivities of the tensile properties to temperature and strain rate were correlated using the time-temperature equivalence, allowing estimates of the mechanical properties of Kevlar and Dyneema at strain rates in excess of 10 3 s −1 . Graphical abstract: Image 1 Highlights: Test technique to test high performance tapes, fibre yarns and composites. Tensile stress/strain curves measured in wide ranges of temperature and strain rate. First data published on response of UD Dyneema® tape. First dataset on tensile response of Kevlar® 49 and Dyneema® SK75 yarns.