Abstract
Uniaxial tension tests under various environmental temperatures are carried out for 5 kinds of polymers : high-density polyethylene (HDPE), poly (vinylidene fluoride)(PVdF), polyoxymethylene (POM), polyamideimide (PAI) and polyether-etherketone (PEEK). As temperature increases, yield stress decreases and yield strain except for the case of PAI increases in all of the matelials tested. HDPE, PVdF and POM are strongly influenced by environmental temperature, but PAI and PEEK are weakly influenced. The authors previously proposed a spherical model based on intermolecular force (Lennard-Jones type) for understanding the influence of hydrostatic pressure, environmental temperature and strain rate on elastic modulus. In this paper, this model is extended to explain the yield behavior and to propose an experimental equation of yield stress and strain. We found that this equation is useful for describing yield stress under various environmental temperatures.
Sign-in/Register to access full text options 
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 callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Disclaimer: 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.
