PMID- 36679215
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230201
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 15
IP  - 2
DP  - 2023 Jan 9
TI  - Lifetime Predictions for High-Density Polyethylene under Creep: Experiments and 
      Modeling.
LID - 10.3390/polym15020334 [doi]
LID - 334
AB  - Observations are reported in uniaxial tensile tests with various strain rates, 
      tensile relaxation tests with various strains, and tensile creep tests with 
      various stresses on high-density polyethylene (HDPE) at room temperature. 
      Constitutive equations are developed for the viscoelastoplastic response of 
      semicrystalline polymers. The model involves seven material parameters. Four of 
      them are found by fitting observations in relaxation tests, while the others are 
      determined by matching experimental creep curves. The predictive ability of the 
      model is confirmed by comparing observations in independent short- and 
      medium-term creep tests (with the duration up to several days) with the results 
      of numerical analysis. The governing relations are applied to evaluate the 
      lifetime of HDPE under creep conditions. An advantage of the proposed approach is 
      that it predicts the stress-time-to-failure diagrams with account for the creep 
      endurance limit.
FAU - Drozdov, A D
AU  - Drozdov AD
AUID- ORCID: 0000-0002-6049-5813
AD  - Department of Materials and Production, Aalborg University, Fibigerstraede 16, 
      9220 Aalborg, Denmark.
FAU - Hoj Jermiin, R
AU  - Hoj Jermiin R
AD  - Department of Materials and Production, Aalborg University, Fibigerstraede 16, 
      9220 Aalborg, Denmark.
FAU - de Claville Christiansen, J
AU  - de Claville Christiansen J
AUID- ORCID: 0000-0001-5501-7019
AD  - Department of Materials and Production, Aalborg University, Fibigerstraede 16, 
      9220 Aalborg, Denmark.
LA  - eng
GR  - 9091-00010B/Innovationsfonden (Innovation Fund Denmark)/
PT  - Journal Article
DEP - 20230109
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC9864414
OTO - NOTNLM
OT  - constitutive modeling
OT  - creep endurance limit
OT  - creep failure
OT  - high-density polyethylene
OT  - lifetime prediction
COIS- The authors declare no conflict of interest.
EDAT- 2023/01/22 06:00
MHDA- 2023/01/22 06:01
PMCR- 2023/01/09
CRDT- 2023/01/21 01:52
PHST- 2022/12/12 00:00 [received]
PHST- 2023/01/03 00:00 [revised]
PHST- 2023/01/06 00:00 [accepted]
PHST- 2023/01/21 01:52 [entrez]
PHST- 2023/01/22 06:00 [pubmed]
PHST- 2023/01/22 06:01 [medline]
PHST- 2023/01/09 00:00 [pmc-release]
AID - polym15020334 [pii]
AID - polymers-15-00334 [pii]
AID - 10.3390/polym15020334 [doi]
PST - epublish
SO  - Polymers (Basel). 2023 Jan 9;15(2):334. doi: 10.3390/polym15020334.