OT - Being 787 issues, does this mean carbon composite has issues?

[Zbigniew Koziol]

Pete Lancashire wrote:
> Large dynamic CC assembles are still very hard to work with, and
> don't behave well.
>
> The general feeling around some of my friends in Seattle is Boeing
> did not do what Boeing would have done in the past, extensive
> testing vs today relying on CAE.
>
> "The computer (program) said the thing was strong enough so it must
> be".
>
> -pete Son of former Arrow structural/mechanical engineer
>
>
>   

It seems that the memory of Arrow project still remains largely under 
the rag, anyway.

I have a friend who worked for many years in Bombardier in Toronto. He 
says that now, they take parts to assemble from manufactures in Mexico. 
He is an engineer. And he says that he never ever before saw so 
disastrous components to come to their factory.

So...

Actually, I never ever studied that problem myself. But... How it 
happened that Toronto factory fell into private hands?

zb/.





>   
>> William Muriithi wrote:
>>     
>>> Hi,
>>>
>>>  I thought this would be interesting to share, just in case someone
>>> here has interest in airliner manufacturing. It seems the new
>>> composite wings failed to hold 150% of the maximum operating load.
>>> Now, my question is, is this under performance a design over sight or
>>> does this imply carbon composite properties are not as solid as they
>>> have been sold out to be?
>>>
>>> http://seattletimes.nwsource.com/html/boeingaerospace/2009565319_boeing30.html
>>>
>>>       
>> I's suspect an engineering issue.  Carbon composites have been in use
>> for many years, so a generic flaw is unlikely.
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