The multi-potential surface model in strain space is more practical, since its parameters are easy to be determined, and the program based on the model is easy to be developed.
多重势面模型直接从数学原理出发建立本构关系，避开了传统塑性理论中屈服面的概念，为研究岩土工程材料本构模型提供了新的思路。
The multi-potential surface model in strain space is more practical, since its parameters are easy to be determined, and the program based on the model is easy to be developed.
多重势面模型直接从数学原理出发建立本构关系，避开了传统塑性理论中屈服面的概念，为研究岩土工程材料本构模型提供了新的思路。
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