Study of the Fatigue Behavior of the Polychloroprene Rubber with Stress Variation Tests

Berton, Gaëlle; Cruanes, C.; Lacroix, Florian; Méo, Stéphane; Ranganathan, N.

doi:10.1016/j.proeng.2015.02.050

Cited by 13 publications

(5 citation statements)

References 8 publications

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“…An increase of 30% of peak stress value. This value is comparable to fatigue testing of a polychloroprene rubber reinforced with carbon black reported by Berton et al [13] and Poisson et al [14]. Loo et al had also experienced a gradual drop of peak stress progressively which relates to the loading effect seen Figure [15].…”

Section: Effect Of Peak Stress With Different Loading Of Coal Ashsupporting

confidence: 84%

Effect of Different Waste Coal Ash (WCA) Loading to Dynamic Load Application of Chloroprene Rubber

Maulod¹,

Mohamad²,

Razak³

et al. 2020

MJCSM

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This study seeks to address the effect of waste coal ash collected from burnt charcoal after human recreational activities to the chloroprene rubber's dynamic property specifically in cyclic load. Waste coal ash was chosen due to their availability, low cost, and recyclability. The waste coal ash was incorporated into chloroprene rubber via melt compounding process using an internal mixer. The compounding formulation of the chloroprene rubber compound and coal ash were based on 100 phr of the chloroprene rubber. The loading of waste coal ash were varied at 5, 10, 20, 30 and 40 phr. Waste coal ash exhibits the highest reinforcing property at 40 phr loading. The fatigue test was done to determine the peak stress value and stress softening effect and found that at 5 -30 phr waste coal ash had a detrimental effect on CR compound while at 40phr, the rubber compound exhibit positive result with an increase of 30% of the peak stress. Morphological study using scanning electron microscopy (SEM) showed degrees of agglomeration of the waste coal ash in the chloroprene rubber matrices. The dispersion of waste coal ash agglomerates and morphology of failures were in good agreement with the observed dynamic properties.

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Section: Effect Of Peak Stress With Different Loading Of Coal Ashsupporting

confidence: 84%

Effect of Different Waste Coal Ash (WCA) Loading to Dynamic Load Application of Chloroprene Rubber

Maulod¹,

Mohamad²,

Razak³

et al. 2020

MJCSM

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show abstract

“…During the stretching process, the rubber molecular chains stretched and transition from folded to stretched conformation, resulting in strain‐induced crystallization (SIC) 15–17 . SIC is closely related to the fracture strength and fatigue fracture resistance of rubber 10,18,19 . Elongated crystallites are most likely to form during stretching, and the grains are oriented along the chain axis parallel to the stretching direction, which results in significant changes in the degree of crystallinity and molecular chains orientation of the rubber.…”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17] SIC is closely related to the fracture strength and fatigue fracture resistance of rubber. 10,18,19 Elongated crystallites are most likely to form during stretching, and the grains are oriented along the chain axis parallel to the stretching direction, which results in significant changes in the degree of crystallinity and molecular chains orientation of the rubber. It is the improvement of orderliness will hinder the fatigue fracture of rubber and significantly increase its fatigue life.…”

mentioning

confidence: 99%

Changes in crosslinking structure of thermo‐oxidative aging chloroprene rubber and its effect on strain‐induced crystallization

Jiang,

Qin,

Han

et al. 2023

J of Applied Polymer Sci

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Chloroprene rubber (CR) is frequently quoted as an example of strain‐induced crystallizing elastomer. Many researchers have focused on studying the aging mechanism and mechanical properties of aged CR, little has been done on the effect of crosslinking structure on strain‐induced crystallization (SIC). The present paper related systematic investigations combining the changes of crosslinking structure and its influence on SIC. It was firstly investigated based on FTIR, crosslinking density test and GPC. The results showed that the molecular chains were oxidized in the early stage of aging, but the crosslinking reaction still dominated. At the same time, sol content and polydispersity decreased. In the later stage of aging, CR was oxidized, resulted in severe molecular chains fracture and an increase in the free sol content and polydispersity. The impact of aging on SIC under tensile condition was further investigated by the tensile tests. An obvious stress‐hardening was found for unaged CR, but not in aged CR. The crystallinity and microcrystalline region orientation tests showed that oxidation, crosslinking by double bonds and dechlorination during aging were not conducive to the orientation of molecular chains during stretching. It is the aging process that has an adverse effect on the SIC of CR.

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“…Recently, [ 19 ] summarized the experimental fatigue campaign for rubber elastomers testing strategy. Excluding the ASTM D4482 standard, volumetric geometries of specimens were successfully tested in fatigue testing: diabolo specimens/hourglass shape/3D dumbbell specimens: [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ]; dumbbell, dogbone specimens: [ 20 , 21 , 29 , 30 , 31 , 32 , 33 ]; cylindrical: [ 34 , 35 , 36 , 37 , 38 ]; ring: [ 39 ]; disc-shaped: [ 40 , 41 ]; and thin-film: [ 7 , 42 ].…”

Section: Introductionmentioning

confidence: 99%

Constitutive Law Identification and Fatigue Characterization of Rigid PUR Elastomers 80 ShA and 90 ShA

et al. 2022

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This paper presents the results of a study of polyurethane rigid (PUR) elastomers in terms of the constitutive law identification, and analyses the effect of polyurethane elastomers’ hardness on fatigue properties. The research objects were PUR materials based on 4,4′-diphenylmethane diisocyanate (MDI) with the hardness of 80 ShA and 90 ShA, typically used in various industrial applications. Based on the performed experimental campaign under static and cyclic loading, the constitutive model proposed by Ogden is most appropriate. In addition, a hybrid numerical–experimental analysis (using FEM-DIC) of diabolo specimens’ behaviour is carried out in fatigue tests. Based on the performed fatigue test, it is worth noting that the energy approach describes the fatigue process synonymously compared to the displacement or strain approach. Finally, simple fatigue characteristics were analyzed and statistically validated for both PUR material configurations.

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Study of the Fatigue Behavior of the Polychloroprene Rubber with Stress Variation Tests

Cited by 13 publications

References 8 publications

Effect of Different Waste Coal Ash (WCA) Loading to Dynamic Load Application of Chloroprene Rubber

Effect of Different Waste Coal Ash (WCA) Loading to Dynamic Load Application of Chloroprene Rubber

Changes in crosslinking structure of thermo‐oxidative aging chloroprene rubber and its effect on strain‐induced crystallization

Constitutive Law Identification and Fatigue Characterization of Rigid PUR Elastomers 80 ShA and 90 ShA

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