کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4922469 | 1430187 | 2017 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental and theoretical studies on inter-fiber failure of unidirectional polymer-matrix composites under different strain rates
ترجمه فارسی عنوان
مطالعات تجربی و نظری بر روی شکست بین فیبر کامپوزیت های پلیمر ماتریس یک جهته تحت نرخ های مختلف فشار
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کلمات کلیدی
کامپوزیت پلیمر ماتریس، اثر نرخ فشار، استحکام، نظریه شکست،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Polymer-matrix composites (PMCs) are widely used in many fields. However, the accurate characterization of their failure behavior is still a challenge. At present, the inter-fiber failure of unidirectional PMCs under compression is not well predicted, and the corresponding strain rate dependent failure theory remains less explored. This paper aims to study and characterize the inter-fiber failure behavior of unidirectional PMCs under different strain rates. Unidirectional glass/epoxy specimens with various off-axis angles were tested at three strain rates (quasi-static, 383 and 646Â sâ1), and the measured strain rate dependent strength is modelled by an empirical formula. To evaluate the test results, a new failure theory that incorporates strain rate effects is proposed. The theory is developed based on three different failure modes, with each represented by a new and simple formula. Comparison shows that the predicted failure envelopes and fracture angles are in excellent agreement with the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volumes 113â114, 15 May 2017, Pages 37-46
Journal: International Journal of Solids and Structures - Volumes 113â114, 15 May 2017, Pages 37-46
نویسندگان
Yong Tao, Haosen Chen, Kai Yao, Hongshuai Lei, Yongmao Pei, Daining Fang,