کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7172992 | 1464038 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the influence of the property gradient on the impact behavior of graded multilayer sandwich with corrugated cores
ترجمه فارسی عنوان
در اثر صفت اموال در رفتار تاثیر ساندویچ چند لایه درجه بندی شده با هسته های راه
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کلمات کلیدی
ساندویچ چند لایه طبقه بندی شده، هسته رشته ای، آزمایش ضربه بازده جذب انرژی، شیب ملک،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
Graded lightweight structure is a new trend to improve energy absorption capacity of such structural materials. This study aims at the influence of property gradients on the overall behavior of graded multilayer sandwiches with corrugated cores under impact loading. The design of the property gradient of graded multilayer sandwiches as well as the manufacturing of different corrugated cores is presented at first. The graded multilayer sandwich is tested under various experimental configurations at rather low (9â¯m/s) and high (38â¯m/s) impact velocities. It turned out that no influence of gradient is found for low impact velocity because a quasi-static equilibrium state is reached. However, at high impact velocity, the test revealed a significant difference between different property gradient profiles. Numerical models are also built to simulate those tests. It allows for the further numerical analysis on a larger range of gradient profiles and higher impact velocities. A general trend for the design of the graded multilayer sandwiches with corrugated cores to improve energy absorption efficiency is proposed, which consists of placing the weakest layer near the protected structure and the hardest layer near the impacted end of the graded sandwich.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 113, March 2018, Pages 98-105
Journal: International Journal of Impact Engineering - Volume 113, March 2018, Pages 98-105
نویسندگان
B.T. Cao, B. Hou, H. Zhao, Y.L. Li, J.G. Liu,