کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1578095 1514815 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental characterization and modelling of the cyclic softening of carbon-black filled rubbers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Experimental characterization and modelling of the cyclic softening of carbon-black filled rubbers
چکیده انگلیسی

Several carbon-black filled styrene-butadiene rubbers (SBRs) were submitted to uniaxial tension cyclic tests at large strain for investigating filled rubbers cyclic softening. In order to study the effect of the material composition (amount of fillers and crosslink density) and of the stretch intensity, an original method for cyclic softening characterization is proposed. The softening is seen as an amplification of the stretch in the rubber gum, and a stretch amplification factor is then introduced as the softening parameter. The latter is evaluated for various materials and several levels of cyclic stretch intensity. Material softening is shown to increase with the loading intensity, the amount of carbon-black fillers and the decrease of the crosslink density. In terms of modelling, the introduced softening parameter provides access to the entire stress-stretch responses of the softened material for any cycle. Therefore, a model is written for the description and the prediction of the stress-stretch responses of filled rubbers during proportional cyclic tests.


► Cyclic tensile tests were applied to filled rubbers to investigate their softening.
► An original parameter for cyclic softening characterization is proposed.
► The parameter is relevant for the comparison of various materials.
► A model is written for the prediction of the rubber cyclic stress-stretch responses.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 528, Issues 29–30, 15 November 2011, Pages 8651–8659
نویسندگان
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