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## Main Question or Discussion Point

Hello All,

Can any one let me know the difference between Vonmises Stress criterion and Maximum Principle Stress criterion ?? And for what kind of materials " Brittle / Ductile " can they be used and why ??

Thanks in advance for your time.

Can any one let me know the difference between Vonmises Stress criterion and Maximum Principle Stress criterion ?? And for what kind of materials " Brittle / Ductile " can they be used and why ??

Thanks in advance for your time.