کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
278069 | 1430263 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical response of polypropylene under multiple-step loading
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Experimental data are reported on isotactic polypropylene in uniaxial multiple-step cyclic tests at room temperature. The deformation programs involve (i) one- and two-step cyclic tests with a stress-controlled program (ratcheting with various maximum stresses and the zero minimum stress), (ii) short-term creep tests on specimens subjected to cyclic deformation, (iii) cyclic tests with a stress-controlled program on specimens subjected to creep flow, and (iv) triple-step tests (ratcheting with various maximum stresses interrupted by creep). A pronounced difference is observed in damage accumulation under creep and cyclic loading. Applicability is discussed of these observations for lifetime prediction under fatigue conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 50, Issue 5, 1 March 2013, Pages 815–823
Journal: International Journal of Solids and Structures - Volume 50, Issue 5, 1 March 2013, Pages 815–823
نویسندگان
A.D. Drozdov,