Determining plain stress and plain strain

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In a delta strain rosette problem, the classification as a plane stress or plane strain problem depends on the context of the normal strains provided. The discussion leans towards identifying it as a plane stress problem, suggesting that the analysis is relevant in scenarios where out-of-plane stresses are negligible. The term "plain" is clarified to mean "unadorned," reinforcing the focus on the basic definitions. Ultimately, the consensus is that the problem should be treated as a plane stress scenario. Understanding these distinctions is crucial for accurate stress and strain analysis in engineering applications.
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In a delta strain rosette problem if normal strains are given and asked to find the six components of stress and strain , is it considered as a plain stress or plain strain problem.??
 
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I believe it is a plane stress or plane strain problem. Plain means unadorned.
 
thank you
 
but ,i think it is a plane stress problem.
 

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