Open cylinder pull out

Problem definition

The problem considered is the static geometrically non-linear pull-out of an open cylinder with a load P = 40,000. The geometry of the cylinder is defined by: L= 10.35, R = 4.953 and h = 0.094, while the isotropic linear elastic material is characterized by E = 10.5E6 and ν = 0.3125.

SETUP IMAGE HERE

The key displacement is the vertical deformation u_z at the point of load application as illustrated in the figure above, with the reference equilibrium path according to [1] included in the results below.

Results

The results of the test for the thin and thick triangle Kratos shell elements are presented below. TRI RESULTS

The results of the test for the thin and thick quadrilateral Kratos shell elements are presented below. QUAD RESULTS

Both graphs above indicate all Kratos triangular and quadrilateral shell elements agree with the reference solution.

References

1. K.Y. Sze, X.H. Liu, and S.H. Lo. “Popular benchmark problems for geometric nonlinear analysis of shells”. In: Finite Elements in Analysis and Design 40.11 (2004), pp. 1551 –1569.