Composites
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Join Date: Feb 2000
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Composites
Does anyone have reliable information about repairs to composite fuselages? My last company incurred costs of well over £100 million a year due to fuselage damage inflicted by ground vehicles. A skin patch is one thing but how do you ensure structural integrity in a composite section?
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Try www.ESDU.com you will have to pay for subscription, but they have LOADS of up to date data sheets pertaining to Composites. And if you are a member of the RAeS, try their library. Very comprehensive and you can check with Just a phone call.
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Sorry, forgot to mention, the only RELIABLE way to confirm whether a patch would suffice infolves Flinite element analysis using a programme such as Nastran or ABAQUS, with the appropriate pre-post processor software. And an experienced operator. It may be the case that Airbus or Boeing could do the investigation for you as all the definitions for the damaged parts of the aircraft will already be on file... Problem with MMF and G/CRP is you just cannot tell what impact a hole will have on the structural integrity; its not a simple case of determining the stres distribution due to the nature in which CRP distributes the load.
"reliable"
"composites"
"finite element"
In the same sentence !!!.
Wash your mouth out with soap sir. The Esdu data sheets are largely based upon lots and lots of test data which, ultimately, is the only way to have any reasonable confidence in the stressed characteristics of composite structures.
G
"composites"
"finite element"
In the same sentence !!!.
Wash your mouth out with soap sir. The Esdu data sheets are largely based upon lots and lots of test data which, ultimately, is the only way to have any reasonable confidence in the stressed characteristics of composite structures.
G
