傅向荣, 龙驭球, 袁明武. 基于解析试函数的广义协调超基膜元[J]. 工程力学, 2005, 22(3): 1-4.
引用本文: 傅向荣, 龙驭球, 袁明武. 基于解析试函数的广义协调超基膜元[J]. 工程力学, 2005, 22(3): 1-4.
FU Xiang-rong, LONG Yu-qiu, YUAN Ming-wu. A GENERALIZED CONFORMING PLANE ELEMENT BASED ON ANALYTICAL TRIAL FUNCTIONS[J]. Engineering Mechanics, 2005, 22(3): 1-4.
Citation: FU Xiang-rong, LONG Yu-qiu, YUAN Ming-wu. A GENERALIZED CONFORMING PLANE ELEMENT BASED ON ANALYTICAL TRIAL FUNCTIONS[J]. Engineering Mechanics, 2005, 22(3): 1-4.

基于解析试函数的广义协调超基膜元

A GENERALIZED CONFORMING PLANE ELEMENT BASED ON ANALYTICAL TRIAL FUNCTIONS

  • 摘要: 利用解析试函数法构造一个带旋转自由度广义协调超基膜元.根据弹性力学平面问题的控制方程和艾雷应力函数,求出问题完备的基本解析解,然后用其作为试函数并采用广义协调条件来构造单元:ATF-SCQ4θ.数值算例表明,该类单元精度高、对网格畸变不敏感,显示出良好的性能.

     

    Abstract: A generalized conforming plane element with drilling degrees of freedom is developed with analytical trial functions in this paper. From the governing equations of elastic plane problem and the Airy stress function, complete basic analytical solutions are first derived and then used as the trial functions to formulate the element: ATF-SCQ4θ. Numerical examples show that the proposed high precision element is free from mesh sensitivity and exhibits excellent performance.

     

/

返回文章
返回