Conversion between the numerical simulation and the calculation using the Deformation Energy Ratio approach

IF 1.6 Q2 MULTIDISCIPLINARY SCIENCES MethodsX Pub Date : 2025-02-15 DOI:10.1016/j.mex.2025.103221

Kirill Golubiatnikov, František Wald

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Abstract

In numerical simulations and calculations, material curves are defined in different ways. A direct transfer of quantities between them is inaccurate, requiring a proper transformation of key values. The Deformation Energy Ratio approach is based on well-established mechanical principles, such as Neuber's rule and the Equivalent Strain Energy Density method, which express deformation energy as a function of stress and strain. This approach accounts for material conditions in both analyses and enables a more precise limit adjustment. Its simplicity allows for application in both analytical and numerical solutions.

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Allows conversion of values between numerical simulation and calculation for any steel.
•
It takes into account the influence of material properties, thus comprehensively considering the effects of different factors.
•
The verification has presented a high accuracy of the values obtained. The average deviation is <5.0 % and the maximum deviation is 5.6 %.

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