کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
818352 | 1469438 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of stress relaxation in polytetrafluoroethylene composites by cylindrical macroindentation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Study of stress relaxation in polytetrafluoroethylene composites by cylindrical macroindentation Study of stress relaxation in polytetrafluoroethylene composites by cylindrical macroindentation](/preview/png/818352.png)
چکیده انگلیسی
In the present work, the time-dependent mechanical behavior of three materials from the fluorocarbon family, including PTFE without filler, 15Â vol.% regenerated graphite particles-filled PTFE, and 32Â vol.% carbon and 3Â vol.% graphite particles-filled PTFE, was investigated using cylindrical macroindentation. Indentation relaxation experiments with a cylindrical flat-tip indenter having a diameter of 1Â mm were performed at three different strain levels. The generalized Maxwell model in terms of the Prony series and a time-dependent solution based on the power-law creep equation were used to model the viscoelastic response and to extract the time-dependent properties. The stress relaxation properties were found to improve with the addition of fillers. The unfilled PTFE exhibited the lowest stress-relaxation properties, whereas the 32Â vol.% carbon and 3Â vol.% graphite particles-filled PTFE composite showed the highest stress-relaxation properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 47, April 2013, Pages 298-307
Journal: Composites Part B: Engineering - Volume 47, April 2013, Pages 298-307
نویسندگان
Felicia Stan, Catalin Fetecau,