Hi,
The problem is how to solve a model with multi-load cases. The stiffness matrix should be assembled in every load case because periodic boundary condition is used. The results of every load case need to be stored for the later calculating. How to design the program structure?
Best regards,

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ShengliXu
Department of Engineering Mechanics
State Key Laboratory of Structural Analysis for Industrial Equipment
Dalian University of Technology
Dalian, 116023, P. R. China
Email:shengli@student.dlut.edu.cn
          shengli.xu.xu@gmail.com
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