Greetings!
Currently I'm analyzing birdstrike in external installations added to a FAR 25 aircraft. The approach is ABAQUS Explicit, SPH for the BIRD (EoS, bird ressults validated against AFFDL reports, etc.), elastoplastic behavior of the aircraft structure (Johnson Cook Plasticity, Johnson...
Hello,
I am trying to filter a very noisy signal but using a narrow pass band filter there is an undesireded behavior on ressults.
While narrower the filter is applied, more signal sections becomes unusable. I apply filters type Chebishev TI and TII, elliptic and Butterworth.
The figure...
I have a global wing model, with plate elements for skin, ribs and spars and beam/bar elements for stringers and other longitudinal members.
which is the usual way for the estimation of the loads of a group of fasteners on a wing spar panel? should I use the nodal interface loads or estimate...
Hi, I have a model of a semimonocoque structure represented by beam and plate elements (plates represent the skin and frames, and beams the stringers). I would want to know if is there any way of use the membrane forces or stresses in the elements of the joints to estimate the forces into the...
Hello
How can I represent fasteners (Hi lock type) in a structure represented by solid (CTETRA elements)?. The model takes into account the holes for the fasteners.
I have used Beam elements connected by rigids (RBE2) to the nodes in the hole surfaces, but it gives very high stress results...
