Gary70
Aerospace
- Oct 17, 2011
- 10
Hi,
For composite part design; as far as I know, there's a requirement of 2.5D edge margin. For metallic part, the edge margin is defined as the distance of fastener hole center to the nearest edge of part, but for composite part, how do we define this E/D? In addition, for the composite sandwich panels, there's core and fiberglass ply lay-up, how do we know what's the min. edge distance of the fastener to the the edge of core ramp, and staggered ply drop since I could not find any information about this requirement in design handbook or standard.
Thanks for your inputs.
Gary
For composite part design; as far as I know, there's a requirement of 2.5D edge margin. For metallic part, the edge margin is defined as the distance of fastener hole center to the nearest edge of part, but for composite part, how do we define this E/D? In addition, for the composite sandwich panels, there's core and fiberglass ply lay-up, how do we know what's the min. edge distance of the fastener to the the edge of core ramp, and staggered ply drop since I could not find any information about this requirement in design handbook or standard.
Thanks for your inputs.
Gary