Modular hybrid airframe structure for battery thermal event protection and repair

An aircraft frame comprising:

• a plurality of structural members fabricated from a first type of material, wherein each of the structural members comprises a web frame and a web portion within the web frame;
• a plurality of web members fabricated from sheets of a second type of material, wherein each of the web members is fastened to the web frame of a respective structural member of the plurality of structural members to comprise the web portion of the structural member, wherein each of the web members includes a flange along at least one edge thereof;
• and
• a plurality of fasteners for securing the flange of a first one of the web members to the flange of a second one of the web members to create an airgap to accommodate the fasteners, the airgap further providing thermal protection for a joint between the structural members to which the first and second ones of the web members are attached;
• wherein the second type of material is stronger than the first type of material such that one of the sheets of the second type of material is lighter weight than a sheet of equal strength of the first type of material;
• and
• wherein the second type of material is more heat-resistant than the first material.