Abstract: The resistance of sandwich cylinders with density-graded foam cores to internal blast loadings is investigated theoretically and numerically. Four kinds of density-graded foam core are designed, such as positive, negative, ...

Abstract: Honeycomb mechanical metamaterials with semi-re-entrant, square and hexagonal cells were prepared by using continuous twill weave carbon fiber prepreg. Out-of-plane crushing behavior of carbon fiber reinforced polymer ...

Abstract: The ballistic perforation of sandwich plates comprising two identical/unidentical aluminum alloy face sheets and an aluminum foam core is investigated to gain insights into the factors governing the penetration processes. ...