Analysis of Plastic Limit Load and Shakedown Limit Load by ABAQUS

• Main Authors: Ren-Cing Dai, 戴仁清
• Other Authors: Shyue-Yuh Leu
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/15093538337647967153

碩士 === 中華科技大學 === 飛機系統工程研究所 === 102 === The thesis investigates plastic limit load and shakedown limit load of truss structures and square plates with single central circular hole by ABAQUS. The capabilities of step-by-step elastic-plastic analysis and direct cycle analysis in ABAQUS are adopted to perform the numerical computations. Unlike the step-by-step elastic-plastic analysis, the approach of direct cyclic analysis avoids considerable numerical expense with only one loading cycle prescribed. For comparisons, the computing tool MATLAB is also adopted to perform the primal-dual analysis. As shown in illustrative examples, the results obtained by ABAQUS agree very well with those acquired by MATLAB. The physical phenomena are investigated corresponding to plastic limit load and shakedown limit load of truss structures and square plates with single central circular hole. In addition, future applications of results acquired in the thesis are also discussed.