کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10627626 | 990054 | 2012 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strain rate and gage length effects on tensile behavior of Kevlar 49 single yarn
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Strain rate and gage length effects on tensile behavior of Kevlar 49 single yarn Strain rate and gage length effects on tensile behavior of Kevlar 49 single yarn](/preview/png/10627626.png)
چکیده انگلیسی
In the present paper, Kevlar® 49 single yarns with different gage lengths were tested under both quasi-static loading at a strain rate of 4.2Â ÃÂ 10â4Â sâ1 using a MTS load frame and dynamic tensile loading over a strain rate range of 20-100Â sâ1 using a servo-hydraulic high-rate testing system. The experimental results showed that the material mechanical properties are dependent on gage length and strain rate. Young's modulus, tensile strength, maximum strain and toughness increase with increasing strain rate under dynamic loading; however the tensile strength decreases with increasing gage length under quasi-static loading. Weibull statistics were used to quantify the degree of variability in yarn strength at different gage lengths and strain rates. This data was then used to build an analytical model simulating the stress-strain response of single yarn under dynamic loading. The model predictions agree reasonably well with the experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 43, Issue 11, November 2012, Pages 2021-2029
Journal: Composites Part A: Applied Science and Manufacturing - Volume 43, Issue 11, November 2012, Pages 2021-2029
نویسندگان
D. Zhu, B. Mobasher, J. Erni, S. Bansal, S.D. Rajan,