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Post-critical deformation of thin-walled load-bearing aircraft structure representing fragment of the one-way torsion box

Kopecki Tomasz, Lis Tomasz, Mazurek Przemysław

Advances in Science and Technology. Research Journal

2018

Vol. 12, no 3

203--209

The paper presents results of research on thin-walled load-bearing structure model representing a fragment of plane wing torsion box. The basis for obtaining data on deformation character and stability loss process was a model experiment conducted using a dedicated experimental stand. On the basis of experiment results, adequate numerical simulations were conducted using software based on finite elements method. Results of non-linear numerical analyses allowed to determine the character of stress distribution and formulate conclusions regarding behaviour of the post-critical deformations of the examined wing part.