کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7171719 | 1463738 | 2016 | 47 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Creep-fatigue interaction and thermo-mechanical fatigue behaviors of thermoplastics and their composites
ترجمه فارسی عنوان
تعامل خستگی-خستگی و رفتارهای خستگی حرارتی مکانیکی گرمانرم و کامپوزیت های آنها
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کلمات کلیدی
ترموپلاستی، فیبرهای کم فیبر تعامل خلط خستگی، خستگی حرارتی مکانیکی، مدل چابوش،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
Creep-fatigue interaction and thermo-mechanical fatigue (TMF) behaviors of injection molded thermoplastic composites were investigated. Talc-filled polypropylene and short glass fiber reinforced polypropylene, polyamide-6.6, and a blend of polyphenylene-ether and polystyrene were used for the experimental study. Trapezoidal load signal with hold time periods was used for the creep-fatigue testing. Effects of temperature, frequency, load level, and hold-stress position on creep-fatigue interaction behavior were studied. In-phase TMF tests were conducted on polyamide-based composites for the temperature variation between 85 and 120 °C. Significant non-linearity was observed for the interaction of creep and fatigue damage. The applicability of Chaboche non-linear creep-fatigue interaction model to predict creep-fatigue and TMF lives for thermoplastic composites was investigated. A frequency term was added to the model to consider the beneficial effect of increased frequency observed for some thermoplastics. More than 90% of the life predictions by the Chaboche model were within a factor of 2 of the experimental life for both creep-fatigue and TMF test conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 91, Part 1, October 2016, Pages 136-148
Journal: International Journal of Fatigue - Volume 91, Part 1, October 2016, Pages 136-148
نویسندگان
Mohammadreza Eftekhari, Ali Fatemi,