Journal Pre-proofs Creep and Fatigue Behaviors of High-Density Polyethylene (HDPE): Effects of Temperature, Mean Stress, Frequency, and Processing Technique Mohammad Amjadi, Ali Fatemi PII: S0142-1123(20)30402-3 DOI: https://doi.org/10.1016/j.ijfatigue.2020.105871 Reference: JIJF 105871 To appear in: International Journal of Fatigue Received Date: 26 May 2020 Revised Date: 2 August 2020 Accepted Date: 5 August 2020 Please cite this article as: Amjadi, M., Fatemi, A., Creep and Fatigue Behaviors of High-Density Polyethylene (HDPE): Effects of Temperature, Mean Stress, Frequency, and Processing Technique, International Journal of Fatigue (2020), doi: https://doi.org/10.1016/j.ijfatigue.2020.105871 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier Ltd.