PMID- 34683777
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20211026
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 20
DP  - 2021 Oct 18
TI  - Investigation of Tensile Creep Behavior for High-Density Polyethylene (HDPE) via 
      Experiments and Mathematical Model.
LID - 10.3390/ma14206188 [doi]
LID - 6188
AB  - Temperatures of -25  degrees C, +5  degrees C, and +35  degrees C were selected to study the creep 
      behavior of high-density polyethylene (HDPE). The ultimate tensile strength of 
      HDPE materials was obtained through uniaxial tensile experiments and the 
      time-strain curves were obtained through creep experiments. When the loaded 
      stress levels were lower than 60% of the ultimate strength, the specimens could 
      maintain a longer time in the stable creep stage and were not prone to necking. 
      In contrast, the specimens necked in a short time. Then, the time hardening form 
      model was applied to simulate the time-strain curve and the parameter values were 
      solved. The parameter values changed exponentially with the stresses, thereby 
      expanding and transforming the time hardening model. The expanded model can 
      easily and accurately predict creep behaviors of the initial and stable creep 
      stages as well as the long-term deformations of HDPE materials. This study would 
      provide a theoretical basis and reference value for engineering applications of 
      HDPE.
FAU - Mao, Qiang
AU  - Mao Q
AD  - Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, 
      Taiyuan University of Technology, Taiyuan 030024, China.
FAU - Su, Buyun
AU  - Su B
AD  - Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, 
      Taiyuan University of Technology, Taiyuan 030024, China.
AD  - Shanxi Key Laboratory of Material Strength & Structural Impact, Taiyuan 
      University of Technology, Taiyuan 030024, China.
AD  - National Demonstration Center for Experimental Mechanics Education, Taiyuan 
      University of Technology, Taiyuan 030024, China.
FAU - Ma, Ruiqiang
AU  - Ma R
AD  - Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, 
      Taiyuan University of Technology, Taiyuan 030024, China.
AD  - Shanxi Key Laboratory of Material Strength & Structural Impact, Taiyuan 
      University of Technology, Taiyuan 030024, China.
AD  - National Demonstration Center for Experimental Mechanics Education, Taiyuan 
      University of Technology, Taiyuan 030024, China.
FAU - Li, Zhiqiang
AU  - Li Z
AD  - Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, 
      Taiyuan University of Technology, Taiyuan 030024, China.
AD  - Shanxi Key Laboratory of Material Strength & Structural Impact, Taiyuan 
      University of Technology, Taiyuan 030024, China.
AD  - National Demonstration Center for Experimental Mechanics Education, Taiyuan 
      University of Technology, Taiyuan 030024, China.
AD  - College of Aeronautics and Astronautics, Taiyuan University of Technology, 
      Taiyuan 030600, China.
LA  - eng
PT  - Journal Article
DEP - 20211018
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC8538336
OTO - NOTNLM
OT  - creep behavior
OT  - high-density polyethylene (HDPE)
OT  - time hardening form model
OT  - uniaxial tensile experiment
COIS- The authors declare no conflict of interest.
EDAT- 2021/10/24 06:00
MHDA- 2021/10/24 06:01
PMCR- 2021/10/18
CRDT- 2021/10/23 01:16
PHST- 2021/09/07 00:00 [received]
PHST- 2021/10/03 00:00 [revised]
PHST- 2021/10/15 00:00 [accepted]
PHST- 2021/10/23 01:16 [entrez]
PHST- 2021/10/24 06:00 [pubmed]
PHST- 2021/10/24 06:01 [medline]
PHST- 2021/10/18 00:00 [pmc-release]
AID - ma14206188 [pii]
AID - materials-14-06188 [pii]
AID - 10.3390/ma14206188 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Oct 18;14(20):6188. doi: 10.3390/ma14206188.