I am trying to understand the mechanisms for disbond creation during metallic sandwich panel bonded repairs, specifically new disbonds in the unrepaired area of the part in contact with a heat blanket. For this conversation lets talk 250F cure film adhesives with aluminum facesheets and core. I...
For clarification the cutout is only in the original skin.
I did some 1D modeling of the BB cross section and it turns out the assumption there is poor load transfer into the doubler at that section is just plain wrong.
My other question would be how does the load transfer into the doubler...
Hi All,
I am a bit confused about the behavior of metal doubler reinforcing repairs for cutouts. Say I have a plate loaded in tension, the standard method of sizing the repair is to go 1 gauge thicker, and size the amount and type of fasteners / required doubler overlap needed based on the load...
In order to obtain a bearing fatigue stress allowable, is it a relatively standard practice to just apply a factor to the ultimate static bearing stress allowable for the given configuration?
