6-Joyce-Board Test Workshop 2005.pdf
6-Joyce-Board Test Workshop 2005.pdf
6-Joyce-Board Test Workshop 2005.pdf
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And is less bend mode sensitive• This metric isolates thestrain vectors mostresponsible for cornerjoint stress• This results in reducedstrain level variation atjoint failure, regardlessof bend mode,compared to principalstrainLoad on Corner Joint1.000.800.600.400.20εdiagonal= max( ) ( )ε2,εAlternatemetric1ε 3ε2ε 1ε 2+ ε3Principalstrain90.000 0.2 0.4 0.6 0.8 1<strong>Board</strong>-Level Strain
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