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Crack in metal tied with composites?

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Bigtree

Bigtree

Structural
Joined
Jan 30, 2006
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Hi, I created a crack in metal layer bonded with composites. Then, it came out
"MATERIAL ALONG THE CRACKFRONT MUST BE OF THE SAME TYPE FOR THE CALCULATION OF K FACTORS"

Can we calculate stress intensity K in hybrid materials?
 
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Stress intensity factor is used for elastic materials only.
 
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