The role of stress softening in crack propagation of filler reinforced elastomers as evaluated by the J-Integral

Wunde, Matthias; Plagge, J.G.; Klüppel, Manfred

doi:10.1016/j.engfracmech.2019.04.025

Cited by 21 publications

(6 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This effect was consolidated by the observations made from Table 5, where the J values were higher than the characteristic tearing energy of the notched sample at higher strain percentages, thereby bringing the stress softening behavior into account. Similar observations were made by Wunde et al, 41 where they defined the J integral values for natural rubber (NR) and phase separated blends of butadiene rubber (BR) and styrene‐butadiene rubber (SBR). In our analysis, it was assumed that the region from contour 3 to contour 4 had obtained almost constant values of J integral due to uniform energy field.…”

Section: Resultssupporting

confidence: 74%

Insights on the J‐integral expression of pure shear carbon black filled natural rubber specimen and predicting the crack growth rate using finite element method

Bhattacharyya,

Mishra,

Dolui

et al. 2023

SPE Polymers

View full text Add to dashboard Cite

The J‐integral approach manifests itself in an efficient way to determine the crack growth and failure mechanism of tread and sidewall compounds used in tyres. Therefore, for a pure shear (PS) specimen of carbon black filled natural rubber, the J‐integral formula was vivisected, and the material parameters were defined using the concepts of solid mechanics considering the planar stress conditions. Theoretical calculations, experimental observations, and finite element analysis were executed to calculate the J value for different strain percentages. Different hyperelastic material models were used to understand the hyperelastic behavior of the test compound, but Yeoh model was found to be the best fit with the least error against the experimental test data. The frequency sweep dynamic mechanical analyzer test was done to observe the viscoelastic response of the material. It was observed that the J value decreased with decreasing contour radius and had exhibited stark difference with the global tearing energy values, indicating the effects of stress softening and the dependence of J value on the elastic characteristics of the material. Further, the J value attained from finite element methods for a random strain 22% was used to predict the crack growth rate of the pre‐notched PS specimen.Highlights J‐integral formula for pure shear specimen using solid mechanics approach. J value comparison of theoretical, experimental, and finite element methods. Dependence of J value on the elastic characteristics of the material. Different hyperelastic models compared and Yeoh model chosen for analysis. Prediction of crack growth rate at a random strain percentage.

show abstract

Section: Resultssupporting

confidence: 74%

Insights on the J‐integral expression of pure shear carbon black filled natural rubber specimen and predicting the crack growth rate using finite element method

Bhattacharyya,

Mishra,

Dolui

et al. 2023

SPE Polymers

View full text Add to dashboard Cite

show abstract

“…Wunde et al [131,132] carried experiments on cured CB-filled NR-based polymer blends allowing an estimation of Γdissipation / G. For the 4 mixes of the study and various macroscopic strain, they measured by Digital Image Correlation the displacement and strain fields in notched and loaded PS specimens, that they combined with the constitutive laws -modelling Mullins effect and viscoelasticity -identified independently to compute the Rice-or J-integral on various circles C centered on the crack tip. (They considered both components of C Σij dsj, but we focus here on the sole forward component).…”

Section: Experimental Tests Of the Preceding Theoriesmentioning

confidence: 99%

About the Influence of Materials Parameters on the Ultimate and Fatigue Properties of Elastomers

Chazeau

Chenal

Gauthier

et al. 2020

Fatigue Crack Growth in Rubber Materials

View full text Add to dashboard Cite

The aim of this chapter is to revisit the historical works, mechanisms and modeling approaches available in the field of fatigue crack growth resistance and rupture properties. After introducing the methodology developed to evaluate these properties, the impact of testing parameters such as temperature, loading speed and pre-deformation will be highlighted. We will then review the influence of some material characteristics on rupture and crack propagation and the local mechanisms involved. Finally, a theoretical framework primarily dedicated to the description of crack propagation under static load will be discussed, that aims to underline the connection between resistance to crack growth and the ability of a material to dissipate energy.

show abstract

“…the crack path is not controlled by the initial notch. It seems that the crack deviates its path when meets alternative ways, maybe located in weaker places in the boundaries between phases [32]. Besides, in some cases there is a competition between a stable crack propagation and ligament stretching (see inserted pictures in Fig.…”

Section: Pristine Pp/lldpe Blendsmentioning

confidence: 99%

Influence of Different Copolymer Based Compatibilizers on Performance of Pristine and Recycled PP/PE blends

Rosales¹,

Costantino²,

Palazzo³

et al. 2020

Adv. Mater. Lett.

View full text Add to dashboard Cite

The role of stress softening in crack propagation of filler reinforced elastomers as evaluated by the J-Integral

Cited by 21 publications

References 23 publications

Insights on the J‐integral expression of pure shear carbon black filled natural rubber specimen and predicting the crack growth rate using finite element method

Insights on the J‐integral expression of pure shear carbon black filled natural rubber specimen and predicting the crack growth rate using finite element method

About the Influence of Materials Parameters on the Ultimate and Fatigue Properties of Elastomers

Influence of Different Copolymer Based Compatibilizers on Performance of Pristine and Recycled PP/PE blends

Contact Info

Product

Resources

About