CAJ | 학술논문

为满足固结问题有限元分析中位移与孔压形函数不同阶次的需要，采用将两个几何形状和大小相同、结点数和布置方式及自由度数不同的单元叠加形成叠加单元。通过比较叠加单元与传统单元的异同点，给出了叠加单元有限元程序设计中关键问题的解决方法，对部分问题还给出了利用FORTRAN77编写的计算程序，并通过算例验证了方法的可行性。
위만족고결문제유한원분석중위이여공압형함수불동계차적수요，채용장량개궤하형상화대소상동、결점수화포치방식급자유도수불동적단원첩가형성첩가단원。통과비교첩가단원여전통단원적이동점，급출료첩가단원유한원정서설계중관건문제적해결방법，대부분문제환급출료이용FORTRAN77편사적계산정서，병통과산례험증료방법적가행성。
To meet the different order needs of displacement and pore-pressure shape functions in consoli-dation problem analysis, it used the superposed element, formed by superposing two elements with the same geometry but different nodal numbers and nodal degree of freedom numbers.Based on the careful comparison of the difference between the superposed element and the ordinary element, the programming method and some SUBROUTINEs designed by FORTRAN77 were given for the superposed element.The feasibility of the method has been proved by giving two examples.