Modelling three dimensional dynamic problems using the fournode tetrahedral element with continuous

• 作 者: ZHANG GuoHua YANG YongTao
• 机 构: StateKeyLaboratoryofGeomechanicsandGeotechnicalEngineering
• 出 处: 中国科学:技术科学英文版
• 发表日期: 2018年12期
• 关键词: PARTITION of UNITY TETRAHEDRAL element Tetr4-CNS mesh DISTORTION dynamic problem
• 基金项目: the National Natural Science Foundation of China (Grant Nos.51609240,11572009,51538001,51579235& 41472288), the National Basic Research Program of China (Grant No. 2014CB047100).

A partition of unity (PU) based four-node tetrahedral element with continuous nodal stress (Tetr4-CNS) was recently proposed for static analysis of three-dimensional solids. By simply using the same mesh as the classical four-node tetrahedral (Tetr4) elem