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The punch diameter in a bend test is crucial because it influences the stress distribution and strain experienced by the material during bending. A larger punch diameter reduces localized stress concentrations, leading to a more uniform bending effect, while a smaller diameter can create higher localized stress, potentially causing premature failure. Additionally, the punch diameter affects the material's ability to withstand deformation without cracking, making it essential for assessing the material's ductility and overall performance.

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AnswerBot

1mo ago

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