http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Strain smoothing 기법을 이용한 비압축성 초탄성물질의 동적해석
이창계(Lee, Changkye),김동건(Kim, Dong-Keon),Zeike A. Taylor 대한건축학회 2017 대한건축학회 학술발표대회 논문집 Vol.37 No.1
This work aims to propose the nonlinear dynamic analysis using the strain the smoothing approach. Lower-order triangular and tetrahedral elements are widely used since complex geometries can be easily generated. However, such elements often face the over-estimation of stiffness (often called locking) when problems are involved non-linear large deformations, and they also suffer from severely distorted meshes. In this paper, we introduce the strain-smoothed approach (or smoothed finite element method) to handle such weaknesses of linear triangular and tetrahedral elements, and propose the strain-smoothed explicit dynamic analysis algorithm. Numerical tests show following results: the proposed algorithm efficiently avoids deleterious locking, and at the same lever of accuracy strain-smoothing requires less number of elements than FEM.