Optimization of geometric parameters of reinforced sheets based on a cell-based smoothed discrete sh

来源 :Journal of Central South University | 被引量 : 0次 | 上传用户:tiantian200510
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Optimization of design features of reinforced sheet is investigated. Initially, equations governing composite structures are extracted based on Kirchhoff sheet model under bending using Hamilton’s principal. Then, design parameters for the composite structure are extracted with simple supportive boundary conditions from proposed solution. Next, optimization is achieved by determining dimensions of a reinforced sheet specimen. Weight optimization of reinforced sheet structure has been obtained based on variations in thickness and number of longitudinal and transverse reinforcements. Buckling static characteristic is utilized in optimization process. To solve the extracted equations, semi-analytical method of CS-DSG3 has been applied. Results are presented in graphs that show variation of design parameters by changing the geometric parameters. ABAQUS software has been used for design verification. The results show that an increase in thickness of 3 mm skip value tends to be zero. Also, there is a change in the amount of deflection for sheets with a minimum thickness of 3 mm by increasing the number of longitudinal and transverse reinforcement. There is a good agreement between the numerical method of finite elements and the method X-FEM-DSG3. Initially, equations governing the composite structures are extracted based on Kirchhoff sheet model under bending using Hamilton’s principal. Then, the design parameters for the composite structure are extracted with simple supportive boundary conditions from proposed solution. Next, Optimization is achieved by determining dimensions of a reinforced sheet specimen. Weighting of reinforced sheet structure has been obtained based on variations in thickness and number of longitudinal and transverse reinforcements. -Analytical method of CS-DSG3 has been applied. Results are shown in graphs that show variation of design parameters by changing the geometric parameters. ABAQUS software has been used for design verification. The results show that an increase in thickness of 3 mm skip value tends to be zero. Also, t there is a good agreement between the numerical method of finite elements and the method X-FEM-DSG3.
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