Abstract
Abstract : Physical aging in polymeric composites was experimentally investigated and analytically modeled. Attention was focused on physical aging behavior on elastic and creep compliances. Short term creep tests were conducted under isothermal conditions on off-axis composite specimens for different temperatures as well as moisture contents. A master creep curve was employed to describe the anisotropic creep behavior in the composite with the aid of a one-parameter creep potential function. Shift factors and shift rates were used to collapse the creep curves of different aging times to a chosen reference creep curve. An effective time was introduced to predict the long term creep compliance based on the creep model established based on the short term creep data. Moisture has a similar effect on the rate of physical aging. In the present study, a temperature-moisture equivalence was established for the effects of these two variables. With this equivalence, the effect of moisture on physical aging can be predicted using the model with temperature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
