Analysis of elastic-plastic interaction buckling of stiffened panels by spline finite strip method

1993 ◽  
Vol 46 (3) ◽  
pp. 529-536 ◽  
Author(s):  
Yan-Lin Guo ◽  
J. Lindner
Keyword(s):  
Stiffened Panels ◽  
Elastic Plastic ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Spline Finite Strip

Study on Plate Straightening Process Based on Elastic-Plastic B Spline Finite Strip Method

2020 ◽  
Vol 36 (6) ◽  
pp. 737-747
Author(s):  
Jianliang Sun ◽  
Mengqian Sun ◽  
Yunjing Jiao ◽  
Yanan Gao
Keyword(s):  
Stiffness Matrix ◽  
Nodal Line ◽  
Displacement Function ◽  
B Spline ◽  
Elastic Plastic ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Linear Load ◽  
Spline Finite Strip

ABSTRACTAn elastic-plastic B spline finite strip method is proposed to investigate the continuous plate straightening process in this paper. First, the B spline displacement function that satisfies the boundary conditions of simply supported end and free end of the strip element is established, and then the stress-strain matrix is established. Second, the set method of total stiffness matrix based on B spline finite strip method for plate straightening problem is proposed, and the influence of nodal line number and strip elements number on the sparsity of total stiffness matrix is analyzed. Third, the loads on the strip elements are taken as linear uniform distribution, and the transformation matrix between the equivalent linear load and the actual load of the strip element is established. At last, the plate straightening simulation of 11 rolls straightening machine is made based on the elastic-plastic B spline finite strip method, the calculated results agree with the measured results, which approves that the elastic-plastic B spline finite strip method established can be applied to the plate straightening process.

Solving Task of Multi-Intelligence Agents on Energy Model with Spline Finite Strip Method in Cold Forming

2013 ◽  
Vol 401-403 ◽  
pp. 882-885
Author(s):  
Jun Cai Zhang
Keyword(s):  
Virtual Work ◽  
Energy Model ◽  
Random Factor ◽  
Cold Forming ◽  
Dynamic Task ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Multi Agent ◽  
Spline Finite Strip

Spline finite strip method is the basic theory to analyze the cold-bending formation. Based on principle of virtual work by spline finite strip method, energy model of strip element was established. The qualitative forming factors which are difficult to quantify, and the constraint conditions to form model were given into information description. Combing with specialist experience, solving task system of multi-Agent was established. By amending the Agent of knowledge containers and social relationships, every random factor influencing on forming quality effected objectively in the multi-Agent systems based on the changing environment. Then, the formation of dynamic task is solved. This work can provide theoretical guidance for complex design of steel in roll pass.

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