کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8954381 | 1645997 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of far-field compliance on local failure dynamics of soft solids
ترجمه فارسی عنوان
تأثیر رعایت رفاه میدان در پویش محلی شکست مواد جامد نرم
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کلمات کلیدی
ژل نرم پلیمری، پنچر شدن، آغاز قاچاق انطباق، وابستگی به نرخ
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
The resistive forces and failure of a soft gel upon large strain indentation with small, spherically-tipped indenters (or puncture mechanics) has been studied previously by Fakhouri et al., (2015). The above work is extended to include the effect of far-field compliance on the critical crack initiation event via puncture in soft acrylic triblock copolymer gels. It is found that critical puncture force, Pc, reduces with increasing far-field compliance, Cs, due to the change in local probe velocity, vg. A power-law relation between Pc and Cs is established and is shown to be valid across a range of global probe velocity, vc, varied over three orders of magnitude. Small-strain mechanical response of the gels characterized via oscillatory shear rheology and large strain response measured from puncture mechanics show rate-independent behavior. Our experiments and analysis provide insight into local rate-dependent failure processes in elastic triblock copolymer gels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Extreme Mechanics Letters - Volume 24, October 2018, Pages 14-20
Journal: Extreme Mechanics Letters - Volume 24, October 2018, Pages 14-20
نویسندگان
Shruti Rattan, Alfred J. Crosby,