کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4912164 | 1428539 | 2017 | 45 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of collision test results for center-pillar reinforcements with TWB and CR420/CFRP hybrid composite materials using experimental and theoretical methods
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
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چکیده انگلیسی
In this study, vehicle center-pillar reinforcements were formed from steel tailor welded blanks (TWBs) and CR420 steel/carbon-fiber-reinforced plastic (CR420/CFRP) hybrid composite materials. After forming, collision tests were conducted to evaluate the fracture toughness of the center-pillar reinforcements made of TWB and of CR420/CFRP hybrid composite materials. The center-pillar reinforcement with the CR420/CFRP hybrid composite materials was lighter than the one with TWB, and the CR420/CFRP fracture toughness was also improved. The experimental collision results were compared with a computer-aided engineering simulation to provide a second verification. The detailed results were analyzed using the Abaqus/explicit software. Because the elastic modulus of the TWB is higher than that of the CR420/CFRP hybrid composite materials, the impact time for the CR420/CFRP hybrid composite materials is longer than for the TWB. Accordingly, when conducting the collision test of the CR420/CFRP hybrid composite materials, the impulse that the impactor received was greater. When the TWB was replaced with the next generation CR420/CFRP composite material, the body weight of the car became lighter by approximately 44%, while the impulse improved by approximately 10.0%. In this simulation, the impact time, fracture toughness and velocity change of the impactor were evaluated and were in close agreement with the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 168, 15 May 2017, Pages 698-709
Journal: Composite Structures - Volume 168, 15 May 2017, Pages 698-709
نویسندگان
Min-sik Lee, Hyung-yoon Seo, Chung-gil Kang,