An octahedral stress-based fracture criterion for hyperelastic materials

No uniﬁed stress-based criterion exists, in the literature, for predicting the rupture of hyperelastic materials subjected to mutiaxial loading paths. This paper aims to establish a generalized rupture criterion under plane stress loading for elastomers. First, the experimental set up, at breaking, including various loading modes, is briefly described and commented. It consists of uniaxial tests, biaxial tests and pure shear tests, performed on different rubbers. The used vulcanizate and thermoplastic rubber materials are a Natural Rubber (NR), a Styrene Butadiene Rubber (SBR), a Polyurethane (PU) and a Thermoplastic elastomer (TPE). Then, we have investigated a new theoretical approach, based upon the principal stresses, to establish a failure criterion under quasi-static loadings. Thus, we have proposed a new analytical model expressed as a function of octahedral stresses. Quite good agreement is highlighted when comparing the ultimate stresses, at break, between the experimental data and the prediction of the proposed criteria using our rubber-like materials.

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Dynamically vulcanized thermoplastic elastomer nanocomposites based on linear low-density polyethylene/styrene-butadiene rubber/nanoclay/bitumen: morphology and rheological behavior

Iranian Polymer Journal ◽

10.1007/s13726-020-00786-9 ◽

2020 ◽

Vol 29 (3) ◽

pp. 209-217 ◽

Cited By ~ 2

Author(s):

Mahmoudreza Favakeh ◽

Saeed Bazgir ◽

Morteza Karbasi

Keyword(s):

Rheological Behavior ◽

Thermoplastic Elastomer ◽

Low Density Polyethylene ◽

Styrene Butadiene Rubber ◽

Low Density ◽

Butadiene Rubber ◽

Linear Low Density Polyethylene ◽

Styrene Butadiene

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The effects of a compatibiliser on processing, tensile properties and morphology of polystyrene (PS)/styrene–butadiene rubber (SBR)/wollastonite composites

Polymers and Polymer Composites ◽

10.1177/0967391118809436 ◽

2018 ◽

Vol 26 (8-9) ◽

pp. 454-460 ◽

Cited By ~ 2

Author(s):

Ahmad Fikri Abdul Karim ◽

Hanafi Ismail

Keyword(s):

Tensile Strength ◽

Impact Strength ◽

Young’S Modulus ◽

Young's Modulus ◽

Thermoplastic Elastomer ◽

Filler Loading ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Elongation At Break ◽

Styrene Butadiene

Thermoplastic elastomer composites of polystyrene (PS) blended with styrene–butadiene rubber (SBR)–filled wollastonite were prepared using a laboratory scale internal mixer. The compatibiliser used in this study was maleic anhydride (MAH). The torque developments, morphology, and mechanical properties such as tensile strength, elongation at break, Young’s modulus and impact strength were studied. PS/SBR/wollastonite composites with the addition of MAH had higher torque than PS/SBR/wollastonite composites without MAH. Tensile strength, impact strength and elongation at break were reduced by increasing filler loading, both for composites with and without MAH. Composites with MAH had higher tensile strength but lower impact strength and elongation at break as compared with composites without MAH. The Young’s modulus increased with the wollastonite loading, whereas at a similar wollastonite loading, composites with MAH exhibited higher values of Young’s modulus than composites without MAH. Scanning electron microscopy on fracture surfaces showed better filler–matrix adhesion for composites with MAH.

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Thermoplastic–elastomer composition based on an interpenetrating polymeric network of styrene butadiene rubber–poly(methyl methacrylate) as an efficient vibrational damper

New Journal of Chemistry ◽

10.1039/c7nj03998k ◽

2018 ◽

Vol 42 (3) ◽

pp. 1939-1951 ◽

Cited By ~ 16

Author(s):

Jose James ◽

George V. Thomas ◽

Pramoda K. P. ◽

Nandakumar Kalarikkal ◽

Sabu Thomas

Keyword(s):

Methyl Methacrylate ◽

Polymer Networks ◽

Thermoplastic Elastomer ◽

Interpenetrating Polymer Networks ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Poly Methyl Methacrylate ◽

Polymeric Network ◽

Styrene Butadiene

A new series of interpenetrating polymer networks (IPNs) and semi-IPNs based on styrene butadiene rubber (SBR) and poly[methyl methacrylate] (PMMA) have been synthesized by sequential polymerization.

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PERFORMANCE EVALUATION OF HYPERELASTIC MODELS FOR CARBON-BLACK–FILLED SBR VULCANIZATES

Rubber Chemistry and Technology ◽

10.5254/rct.19.81482 ◽

2020 ◽

Vol 93 (1) ◽

pp. 142-156

Author(s):

M. Fujikawa ◽

N. Maeda ◽

J. Yamabe ◽

M. Koishi

Keyword(s):

Carbon Black ◽

Pure Shear ◽

High Accuracy ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Test Results ◽

Material Models ◽

Material Constants ◽

The Right ◽

Styrene Butadiene

ABSTRACT The performance of four recently developed hyperelastic material models (HM models) was evaluated by using stress–stretch relationships of filled styrene butadiene rubber vulcanizates with different contents of carbon black (CB) tested under uniaxial tension (UT), pure shear (PS), and equi-biaxial tensile (BT) conditions. The stress–stretch relationships for the PS and BT tests were obtained with a specially designed specimen having higher accuracy than those obtained with an ordinary specimen. The performances of the HM models were compared via the following three evaluations: (1) ability to reproduce the UT, PS, and BT tests; (2) ability to predict the PS and BT test results with material constants identified from the UT test; and (3) correlation between the identified material constants and CB contents. The evaluations based on a combination of the stress–stretch relationships with high accuracy and four recently developed HM models revealed that the HM model activates only the I1 term, which is the first invariant of the right Cauchy–Green tensor, exhibiting good reproducibility and predictability.

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