The role of stress softening in crack propagation of filler reinforced elastomers as evaluated by the J-Integral
The role of stress softening in crack propagation of filler reinforced elastomers as evaluated by the J-Integral
复制标题
通过 J-Integral 评估应力软化在填料增强弹性体裂纹扩展中的作用
DOI:
10.1016/j.engfracmech.2019.04.025
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发表时间:
2019
影响因子:
5.4
通讯作者:
Manfred
中科院分区:
文献类型:
--
作者:
Matthias;Plagge;Klüppel;Manfred
A recently developed micromechanical model of stress softening and hysteresis of filled rubber is used to calculate the energy density- and stress distribution around the crack tip for a given displacement field, which is determined by digital image correlation. This allows for a quantitative evaluation of stress-softening influences on the J-Integral,J1. In addition, the gradients of stress, strain and energy close to the crack tip are evaluated and compared to predictions of purely elastic material behaviour. The J-Integral is determined for carbon black filled truck tire tread compounds based on natural rubber (NR) and phase separated blends of NR with butadiene rubber (BR) and/or styrene-butadiene rubber (SBR). Dependent on the compound used,J1is found to decrease significantly with decreasing contour radiusr, indicating that most of the energy flux into the crack tip is dissipated due to stress softening and is not available for crack growth. For larger distancesr, when the energy field becomes isotropic, plateau values are obtained for the J-Integral, which coincide with global tearing energies calculated by simple thermodynamics.
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影响因子:
1.5
作者:
A. Gent;M. Razzaghi‐Kashani;G. Hamed
通讯作者:
A. Gent;M. Razzaghi‐Kashani;G. Hamed
DOI:
--
发表时间:
2013
期刊:
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--
作者:
William V Mars;X. Z. Cheng;H. Y. Zhang
通讯作者:
H. Y. Zhang
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
A. Zehnder
通讯作者:
A. Zehnder
DOI:
--
发表时间:
1967
期刊:
影响因子:
--
作者:
W. M. Hess;C. Scott;J. E. Callan
通讯作者:
J. E. Callan
影响因子:
5.3
作者:
Mohammed El Yaagoubi;D. Juhre;J. Meier;T. Alshuth;U. Giese
通讯作者:
Mohammed El Yaagoubi;D. Juhre;J. Meier;T. Alshuth;U. Giese