the model consists of a pople approx 16m in length, with decreasing diameter cylinders, from approx 500mm to 300mm, 10mm wall thickness, meshed using default size tetra elements. A force is applied a short distance from the base of the horizontal pole, at an angle, say 60degrees to the horizontal, acting as a hydraulic ram. The force is equal to the weight of the pole plus 10%. When the base is modelled and restrained as a hinge (i.e. how it would be in reality, the stresses exceed 100 million MPa, when the hinge location is modelled as a fixed restraint, the stress is low, especially on the point of the application of the forces, which I would not expect.
HAve you got any thoughts on the subject/what i could be doing wrong at all? thanks.
