کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9639690 | 1430413 | 2005 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of low velocity impact damage resistance of sandwich plates
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
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چکیده انگلیسی
Two different interlayer materials are used, a stiff and incompressible polyurethane (PUR), and a compliant and compressible elastomeric foam (EF), together with the same face sheet and core materials. Response of the three different sandwich plate configurations of constant overall thickness is analyzed under uniformly applied load to a span of a continuous plate, and under forces imparted by two shapes of rigid indenters in a low velocity impact. The results show that the PUR interlayer reduces both overall and local deflections of the face sheet, and also the local compression of the foam core and the residual stresses left after unloading. The EF interlayer offers a much better protection against compression of the foam core, while magnifying both overall and local deflections. Both interlayers substantially reduce the strain energy release rates of interfacial cracks driven by residual stresses generated by foam core compression.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 42, Issue 8, April 2005, Pages 2323-2344
Journal: International Journal of Solids and Structures - Volume 42, Issue 8, April 2005, Pages 2323-2344
نویسندگان
Alexander P. Suvorov, George J. Dvorak,