By three-dimension brick elements I suppose you mean 8-node bricks. These elements cannot represent properly bending. Technically speaking, much of the potential energy is consumed by spurious modes. In addition, if the beam that you are modeling is very slender you could have a phenomenon...
That publication presnts how to calculate the force in the holddowns only. I need the forces on the horizontal straps located at the boundary of the window.
I have to design the (seismic) strengthening of a wood stud wall. The wall is 11’x 8’ with an opening at the center of 3’ x 4’. I don’t know how to compute the tension forces on the reinforcing straps located at top and bottom of the opening. The total shear force is 3000lbs
I have to design the (seismic) strengthening of a wood stud wall. The wall is 11’x 8’ with an opening at the center of 3’ x 4’. I don’t know how to compute the tension forces on the reinforcing straps located at top and bottom of the opening. The total shear force is 3000lbs.
I am designing the roller wheels for a bulkhead. By geometrical limitations the resultant hertz stress is 294 ksi. I am using Cast steel of fy=115 ksi. So the ratio is hertz/fy=2.6.
Where could I find an allowable Hertz stress (static loads)?
Hertz stress= ??? x fy
Solid Elements with 6 dof per node hasn't been very succesful numerically. Although they are very useful in some applications where you require to combine with shells (delamination problem), or when are combined and beam elements (modeling of bridges).
Formulation of elements with rotational...
I think the basic idea is as follows.
1) The grade is G6.3 according to ISO 1940
2) The max speed is 650 RPM
3) with 1) and 2) I can enter to the graph and compute the Maximum permissible residual unbalance eper
4) U is eper times the weight of the pump
5) Solve My"+Ky=UQ2 Sin(Qt)
M and K are...
Actually I am trying to compute the displacements of the beam/slab supporting the pump.
So to solve Mx''+K x' = mrQ2 Sin(Qt) I need m and r.
Thanks guys for your help.
recentgrad:
SAP-2000 if you want to perform complex seismic analysis of buildings and bridges.
STAAD have some theoretical deficiencies for plates.
GT STRUDL does not report nodal rotations.
CMFG
Roadmanpd:
Sap2000 is by far a better program than STAAD or GTStrudl.
Specially for seismic design. Not to mention the superior Graphic User Interface.
SAP2000 is the commercial version of SAP a research programa developed at UC Berkeley.
CMFG
Drej:
I am no specifically looking for that element (SOLID73), which I also heard that performed very badly, but any solid element that permits using shells, beams, and solids all together.
CMFG
