CAJ | 학술논문

针对复合材料失效等准静态问题，提出了显隐式联合的求解方法：在加载前期，非线性程度较低时，采用计算效率较高的隐式求解器求解；在材料出现损伤后，非线性程度较高时，改用条件收敛的显式求解器推进计算，中间通过数据传递将材料的应力应变水平及材料损伤状态由隐式求解器传递到显式求解器。该方法在保证计算精度的前提下，兼顾了隐式与显式分析的优点，有效提高了计算效率。
침대복합재료실효등준정태문제，제출료현은식연합적구해방법：재가재전기，비선성정도교저시，채용계산효솔교고적은식구해기구해；재재료출현손상후，비선성정도교고시，개용조건수렴적현식구해기추진계산，중간통과수거전체장재료적응력응변수평급재료손상상태유은식구해기전체도현식구해기。해방법재보증계산정도적전제하，겸고료은식여현식분석적우점，유효제고료계산효솔。
Explicit-implicit analysis method was employed to solve quasi-static problems, i.e. failure analysis for composite structures. In earlier stage of loading, the nonlinearity of the whole system was not obvious, so the implicit analysis method which is much more efifcient was used to solve the nonlinear equations. While the damage of material appears, the nonlinearity of the whole system increased sharply, the explicit analysis method was implemented to replace the implicit analysis, and at the end of implicit analysis procedure ,the stresses, strains and the damage status of materials were all transferred to the explicit solver. Explicit-implicit analysis method combines the advantages of both implicit and explicit analysis, and it apparently improves the computational efifciency while the accuracy does not decrease.