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Why is the Hydrodynamic Tensile Limit negative in the material property data of FloatGlass and FloatGlassB?

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    • March 17, 2023 at 9:00 am
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      FloatGlass and FloatGlassB are two glass materials that can be retrieved from ANSYS Explicit Materials library. Both materials use Johnson-Holmquist strength and Johnson-Holmquist failure models. Hydro Tensile Limit is the maximum tensile pressure that a material can take in the Johnson-Holmquist failure model. It is hydrodynamic pressure, not stress. Since positive value of pressure represents compression, negative value of pressure will represent tension. So Hydro Tensile Limit has a negative value.

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