【摘要】 根据金属塑性成形数值模拟的特点,综述2D问题常用的单元类型——四边形单元几种主要的生成方法,包括映射单元法、三角单元转换法、Paving单元法和Looping单元法。综合考虑了单元网格质量、算法实现的难易和自动化程度等因素后,提出Looping单元法是一种较好的四边形单元网格生成方法。更多还原

【Abstract】 The mesh generation approaches of quadrilateral elements,which are oftern used to solve 2D problems in the metal plastic forming simulation,are reviewed here ,including mapped element method,conversion element types method,paving element method and looping element method.Considering some factors,such as the quality of elements,the difficulty of realization and the automation of generation,looping element method is qualified as a good mesh generation method of quadrilateral elements.更多还原