Abstract: A corrugated lift fan rotor is disclosed. In various embodiments, a rotor includes an upper skin, a lower skin, and an at least partly corrugated core encased between the upper skin and the lower skin. In some embodiments, the core comprises a composite material, such as carbon fiber reinforced polymer composite material, and includes an upper cap portion, a lower cap portion, and a web portion extending between the upper and lower cap portions.

Abstract: A corrugated lift fan rotor is disclosed. In various embodiments, a rotor includes an upper skin, a lower skin, and an at least partly corrugated core encased between the upper skin and the lower skin. In some embodiments, the core comprises a composite material, such as carbon fiber reinforced polymer composite material, and includes an upper cap portion, a lower cap portion, and a web portion extending between the upper and lower cap portions.

Abstract: An electrically conductive and insulative composite (ECIC) is disclosed. In various embodiments, an ECIC as disclosed herein may include an electrically conductive structural element and one or more electrically insulative structural elements adhesively bonded to the conductive structural element to form a unitized structure having a design shape and one or more significant mechanical properties. The conductive structural element is substantially encapsulated by said one or more electrically insulative structural elements with the exception of one or more contact areas comprising portions of conductive material not encapsulated by said one or more electrically insulative structural elements.

Abstract: An electrically conductive and insulative composite (ECIC) is disclosed. In various embodiments, an ECIC as disclosed herein may include an electrically conductive structural element and one or more electrically insulative structural elements adhesively bonded to the conductive structural element to form a unitized structure having a design shape and one or more significant mechanical properties. The conductive structural element is substantially encapsulated by said one or more electrically insulative structural elements with the exception of one or more contact areas comprising portions of conductive material not encapsulated by said one or more electrically insulative structural elements.

Abstract: A corrugated lift fan rotor is disclosed. In various embodiments, a rotor includes an upper skin, a lower skin, and an at least partly corrugated core encased between the upper skin and the lower skin. In some embodiments, the core comprises a composite material, such as carbon fiber reinforced polymer composite material, and includes an upper cap portion, a lower cap portion, and a web portion extending between the upper and lower cap portions.

Abstract: An electrically conductive and insulative composite (ECIC) is disclosed. In various embodiments, an ECIC as disclosed herein may include an electrically conductive structural element and one or more electrically insulative structural elements adhesively bonded to the conductive structural element to form a unitized structure having a design shape and one or more significant mechanical properties. The conductive structural element is substantially encapsulated by said one or more electrically insulative structural elements with the exception of one or more contact areas comprising portions of conductive material not encapsulated by said one or more electrically insulative structural elements.