Abstract A new approach is proposed for enabling the exchange and testing of arbitrary yield surface models, solely based on a set of Fourier coefficients. This effectively reduces the implementation efforts to a single generic model description. The proposed method exploits the Fast Fourier Transform algorithm to identify a unique set of coefficients of the FAY model based on any plane stress yield surface model. The approach is tested based on well-known yield functions and is analyzed with respect to accuracy and convexity. Finally a universal yield surface format is proposed for exchanging FAY coefficients in scientific and technical communities.

中文翻译：

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一种快速稳定识别 FAY 系数的新算法及其作为屈服面建模通用平台的应用

摘要 提出了一种新方法，用于实现任意屈服面模型的交换和测试，仅基于一组傅立叶系数。这有效地减少了对单个通用模型描述的实现工作。所提出的方法利用快速傅立叶变换算法来识别基于任何平面应力屈服面模型的 FAY 模型的一组唯一系数。该方法基于众所周知的屈服函数进行测试，并针对准确性和凸性进行了分析。最后，提出了一种通用的屈服面格式，用于在科学和技术社区中交换 FAY 系数。