Quantitative evaluation of impact damage in composites using acoustic microscopy
作者： A.C. Wey , L.W. Kessler , B. Ho
DOI: 10.1109/ULTSYM.1991.234098
关键词: Composite material 、 Optical microscope 、 Composite laminates 、 Acoustic microscopy 、 Delamination 、 Microscopy 、 Epoxy 、 Materials science 、 Nondestructive testing 、 Izod impact strength test
摘要: A C-Scan mode acoustic microscope (C-SAM) and a through-transmission scanning laser microscopy (SLAM) were used to nondestructively evaluate damage in graphite/epoxy composite laminates which has been subjected low-velocity impact. The total delamination area was quantitatively measured for all laminated interfaces through the entire thickness. results from C-SAM SLAM inspection agree with those X-radiographs analytical predictions. Because measurement is nondestructive, can be correlate compression-after-impact strength of impacted specimens, critically important application materials structural design. >
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