Sandwich structure having arrestment feature

A composite sandwich structure having integral arrestment, comprising:

• a first facesheet and a second facesheet comprising first and second multi-ply composite facesheets;
• a segmented core sandwiched between and joined to the first facesheet and the second facesheet, the segmented core including a plurality of core segments spliced together along joints between their mutual edges;
• and
• a plurality of arrestment features between the first facesheet and the second facesheet, each of the plurality of arrestment features extending along corresponding joints for arresting propagation of an inconsistency in the structure, wherein a first arrestment feature of the plurality of arrestment features wraps around two sides of a first core segment of the plurality of core segments and two sides of a second core segment of the plurality of core segments such that the first facesheet and the second facesheet are both in contact with portions of the first arrestment feature;
• the first arrestment feature further comprising a first wrap and a second wrap, wherein the first wrap and the second wrap both are generally C-shaped in cross section;
• the first wrap covers three sides of the first core segment;
• the second wrap covers three sides of the second core segment;
• at least one of a first strap overlies a first joint;
• the first strap sandwiched between the first facesheet and both the first wrap and the second wrap;
• at least one of a second strap overlies the first joint;
• and the second strap is sandwiched between the second facesheet and both the first wrap and the second wrap.

A composite sandwich structure, comprising:

• first and second multiply, composite facesheets;
• a core including a plurality of core segments sandwiched between the first and second facesheets;
• and,
• joints connecting the core segments together along their edges, each of the joints including a pair of composite wraps respectively around the edges of adjacent core segments, and a pair of straps respectively engaging the first and second facesheets, wherein the pair of wraps wrap around two respective sides of a corresponding pair of core segments of the plurality of core segments such that the first second facesheets are both in contact with portions of the first and second wraps;
• wherein the first second wraps are both generally C-shaped in cross section;
• the first and second wraps respectively covering three sides of respective adjacent core segments;
• the pair of straps sandwiched between the first and second facesheets and corresponding first and second wraps and overlying a corresponding joint.