CRACK GROWTH BEHAVIOR OF STYRENE-BUTADIENE RUBBER, NATURAL RUBBER, AND POLYBUTADIENE RUBBER COMPOUNDS: COMPARISON OF PURE-SHEAR VERSUS STRIP TENSILE TEST

被引:25
作者
Andreini, G. [1 ]
Straffi, P. [1 ]
Cotugno, S. [1 ]
Gallone, G. [2 ]
Polacco, G. [2 ]
机构
[1] Bridgestone Tech Ctr Europe, Rome 00128, Italy
[2] Univ Pisa, Dept Civil & Ind Engn, I-56122 Pisa, Italy
来源
RUBBER CHEMISTRY AND TECHNOLOGY | 2013年 / 86卷 / 01期
关键词
FATIGUE; SBR; PROPAGATION;
D O I
10.5254/rct.13.88957
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Fatigue crack growth experiments on different carbon black-filled rubber compounds have been carried out to evaluate the influence of pure-shear and strip tensile testing mode by using sine and pulse as waveforms. In a previous set of experimental investigations regarding the influence of both waveform and tested material, it was found that the model of crack opening sometimes propagates too quickly to be properly monitored in tests involving strip-tensile specimens. An alternative test methodology based on pure-shear test mode has been investigated, optimizing both the shape of the specimen and the test equipment. Data obtained from the different compound formulations were consistent with the theoretical background and resulted in similar ranking of compound crack growth resistance for the two testing modes; in addition, pure-shear mode showed a higher sensitivity to formula variations. [doi:10.5254/rct.13.88957]
引用
收藏
页码:132 / 145
页数:14
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