کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1502238 993411 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Noninvasive three-dimensional visualization of defects and crack propagation in layered foam structures by phase-contrast microimaging
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Noninvasive three-dimensional visualization of defects and crack propagation in layered foam structures by phase-contrast microimaging
چکیده انگلیسی

Layered polymer foam structures used to insulate the fuel tank on the Space Shuttle were investigated by combining phase-contrast X-ray three-dimensional imaging and loading. It is shown that the interlayers between layers were distinctly different from the layers, resulting in incoherent interfaces where defects developed due to severe mismatch of cell structure between the mechanically weaker layers and stronger interlayers. These images reveal noninvasively that cracks nucleated readily at the interfaces and grew preferably along the direction of foam rise.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 59, Issue 10, November 2008, Pages 1127–1130
نویسندگان
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