期刊
JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES
卷 2, 期 10, 页码 1947-1963出版社
MATHEMATICAL SCIENCE PUBL
DOI: 10.2140/jomms.2007.2.1947
关键词
sandwich plates; honeycomb core; folded plate core; strength; ductility; dynamic response
The deflection and fracture of metal sandwich plates subjected to intense uniform impulsive pressure loads are studied for plates made of four steels representing a wide range of strength, strain hardening and ductility. Sandwich plates with both square honeycomb cores and folded plate cores are considered. The primary fracture modes of the sandwich plates are necking and subsequent tearing of the face sheets and webs and shear delamination of the core webs from the faces. Plates with square honeycomb cores have higher damage tolerance than those with folded plate cores in that they can withstand much larger loads above those at which the first signs of fracture appear. The trade-off between strength and ductility in plate performance is illustrated.
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