The processing technology of Von Karman Fairing Fabricated by PMI Foam Sandwich Structure was
investigated. The processing method was determined by the investigation on the properties of glass fiber reinforced
composite and foam structure, the thermoforming and splicing of foam, the processing of composite and sandwich
structure, and the nondestructive testing technology. The results show that the lognitudinal and transverse strength of
glass reinforced composite panel are respectively 602 MPa and 593 MPa. The lognitudinal and transverse modulus of
panel are respectively 26. 0 GPa and 27. 2 GPa. The lognitudinal and transverse edgewise compression strength of
foam sandwich structure with density of (110±10) kg/ m3 and thickness of 8mm are respectively 32. 9 MPa and 30. 5
MPa. The lognitudinal and transverse edgewise compression modulus of foam sandwich structure are respectively 2. 31
GPa and 2. 38 GPa. The mechanical properties of panel and foam sandwich can meet the design requirements. In addition,
the lest Von Karman Fairing fabricated with the PMI foam sandwich structure with glass fiber reinforced composite
panel by the step-cured processing can also meet the design requirement.