کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9706113 | 1465103 | 2005 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of the residual mechanical properties of woven fabric reinforced composites after low-velocity impact
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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: Characterization of the residual mechanical properties of woven fabric reinforced composites after low-velocity impact Characterization of the residual mechanical properties of woven fabric reinforced composites after low-velocity impact](/preview/png/9706113.png)
چکیده انگلیسی
An investigation is undertaken to examine the residual mechanical properties of crowfoot-weave carbon/epoxy laminates subjected to a transverse central low-velocity impact load. It is found that the residual strength and stiffness of impacted laminates decrease with increasing impact damage area. Experimental data indicates that flexural stress constitutes the basis of a failure criterion that also describes damage severity, if localized damage at the region of impact is not serious. By formulating a simple model involving the motion of a rigid impactor, together with fundamental stress analysis of a transversely loaded plate, the effects of impactor mass, impact velocity, impactor tip radius, laminate thickness and lay-up on low-velocity impact damage are identified. Based on the experimental observations, it is found that the residual mechanical properties can be approximated by a linear relationship with a single damage severity parameter Q, where Q is a function of incident impact energy, impactor tip radius and laminate thickness. The theoretical results are verified by experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mechanical Sciences - Volume 47, Issues 4â5, AprilâMay 2005, Pages 647-665
Journal: International Journal of Mechanical Sciences - Volume 47, Issues 4â5, AprilâMay 2005, Pages 647-665
نویسندگان
V.P.W. Shim, L.M. Yang,