PMID- 34502934
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240403
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 13
IP  - 17
DP  - 2021 Aug 27
TI  - Compressive Properties and Constitutive Model of Semicrystalline Polyethylene.
LID - 10.3390/polym13172895 [doi]
LID - 2895
AB  - The mechanical properties of polyethylene (PE) materials are greatly influenced 
      by their molecular structures, environmental temperature, and strain rate. In 
      this study, static and dynamic compression tests were performed on two 
      semicrystalline PE materials-ultrahigh molecular weight polyethylene (UHMWPE) and 
      high-density polyethylene (HDPE). The stress-strain curves of HDPE and UHMWPE 
      under uniaxial compression at temperatures of -40-120  degrees C and strain rates of 
      0.001-5500 s(-1) were obtained. The research findings suggest that both the 
      UHMWPE and HDPE showed significant strain rate-strengthening effect and 
      temperature-softening effect. In particular, HDPE exhibited better compression 
      resistance and high-temperature resistance. The relationships between the yield 
      stress and temperature and between the yield stress and strain rate for both 
      materials were fitted, and the Cowper-Symonds constitutive model was built while 
      considering the temperature effect. The parameters of the constitutive model were 
      obtained and input into LS-DYNA software to simulate the dynamic compression 
      process of HDPE. The simulation result was consistent with the test result, 
      validating the accuracy of the constitutive parameters.
FAU - Zhang, Kebin
AU  - Zhang K
AUID- ORCID: 0000-0002-5722-3147
AD  - ZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, 
      Nanjing 210094, China.
FAU - Li, Wenbin
AU  - Li W
AD  - ZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, 
      Nanjing 210094, China.
FAU - Zheng, Yu
AU  - Zheng Y
AD  - ZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, 
      Nanjing 210094, China.
FAU - Yao, Wenjin
AU  - Yao W
AD  - ZNDY of Ministerial Key Laboratory, Nanjing University of Science and Technology, 
      Nanjing 210094, China.
FAU - Zhao, Changfang
AU  - Zhao C
AUID- ORCID: 0000-0002-5454-0913
AD  - School of Mechanical Engineering, Nanjing University of Science and Technology, 
      Nanjing 210094, China.
LA  - eng
GR  - KYCX20_0318/Graduate Research and Innovation Projects of Jiangsu Province/
PT  - Journal Article
DEP - 20210827
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC8433784
OTO - NOTNLM
OT  - constitutive model
OT  - finite element simulation
OT  - polyethylene
OT  - strain rate
OT  - temperature
COIS- The authors declare that they have no known competing financial interest or 
      personal relationships that could have appeared to influence the work reported in 
      this paper.
EDAT- 2021/09/11 06:00
MHDA- 2021/09/11 06:01
PMCR- 2021/08/27
CRDT- 2021/09/10 01:10
PHST- 2021/06/15 00:00 [received]
PHST- 2021/08/18 00:00 [revised]
PHST- 2021/08/25 00:00 [accepted]
PHST- 2021/09/10 01:10 [entrez]
PHST- 2021/09/11 06:00 [pubmed]
PHST- 2021/09/11 06:01 [medline]
PHST- 2021/08/27 00:00 [pmc-release]
AID - polym13172895 [pii]
AID - polymers-13-02895 [pii]
AID - 10.3390/polym13172895 [doi]
PST - epublish
SO  - Polymers (Basel). 2021 Aug 27;13(17):2895. doi: 10.3390/polym13172895.