کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9704693 | 1464180 | 2005 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The use of metal foam projectiles to simulate shock loading on a structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The use of metal foam projectiles to simulate shock loading on a structure The use of metal foam projectiles to simulate shock loading on a structure](/preview/png/9704693.png)
چکیده انگلیسی
Metal foam projectiles are used to generate dynamic pressure-time histories representative of shock loading in water and air. A 1D plastic shock wave analysis is performed for a foam projectile impacting a free but rigid mass. It is shown that the pressure versus time pulse exerted on the mass and the shock arrest distance within the foam depend upon the ratio of foam mass to impacted mass, and upon the ratio of quasi-static to hydrodynamic strength of the foam. The theory is supported by two sets of experiments, one where Alporas foam impacts an instrumented Kolsky pressure bar, and one where the foam is fired at a free mass. It is demonstrated that the magnitude and duration of the pressure pulse can be controlled by suitable adjustment of the velocity, length and density of the foam projectile.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 31, Issue 9, October 2005, Pages 1152-1171
Journal: International Journal of Impact Engineering - Volume 31, Issue 9, October 2005, Pages 1152-1171
نویسندگان
D.D. Radford, V.S. Deshpande, N.A. Fleck,