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Compression creep and thermal ratcheting behavior of High Density Polyethylene (HDPE)


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Kanthabhabha Jeya, Rahul et Bouzid, Abdel-Hakim. 2018. « Compression creep and thermal ratcheting behavior of High Density Polyethylene (HDPE) ». Polymers, vol. 10, nº 2.
Compte des citations dans Scopus : 3.

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The characterization of thermal ratcheting behavior of high density polyethylene (HDPE) material coupled with compressive creep is presented. The research explores the adverse influence of thermal cycling on HDPE material properties under the effect of compressive load, number of thermal cycles, creep time period, and thermal ratcheting temperature range. The compressive creep analysis of HDPE shows that the magnitude of creep strain increases with increase in magnitude of applied load and temperature, respectively. The creep strain value increased by 7 and 28 times between least and maximum applied temperature and load conditions, respectively. The creep modulus decreases with increase in compressive load and temperature conditions. The cumulative deformation is evident in the HDPE material, causing a reduction in the thickness of the sample under thermal ratcheting. The loss of thickness increases with increase in the number of thermal cycles, while showing no sign of saturation. The thermal ratcheting strain (TRS) is influenced dominantly by the applied load condition. In addition, the TRS decreases with increase in creep time period, which is cited to the extended damage induced due creep. The results highlight the need for improved design standard with inclusion of thermal ratcheting phenomenon for HDPE structures particularly HDPE bolted flange joint.

Item Type: Peer reviewed article published in a journal
Additional Information: Identifiant de l'article: 156
Bouzid, Hakim
Affiliation: Génie mécanique
Date Deposited: 09 Feb 2018 14:43
Last Modified: 17 Apr 2018 17:37

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