Hi 3D Dave,
I appreciate the feedback on that! Your link is going in my favorites'. However the profile in the drawing is just an example. I want to take that full straight piece of Z and bend a radius in it of down to 25 inches in the "strong" direction.
James
Heres a scketch from a...
Hi All, structural engineer here, so a bit out of my league.
I am trying to manufacture some Z profiles with a radius is the strong direction.
The Z is 2 flanges of 3/4 and a web of 1 3/4 inches. The thickness is 0.080 inches Lengths are about 8-9 feet.(12 ga) I chose 2024-T3 as the...
Hi EdStainless,
Thank you for your input. I did contact Battelle and you are right, the stress strain and tangent modulus curves are generated using large sample statistical analysis and not the values listed in the standard such as the A, B or S basis values, which are less since they are...
Thank you for the replies,
@sparWeb that spreadsheet helped confirm I am using the right formulas in my own spreadsheets for tangent modulus so thank you.Is it possible to move a thread? I also posted in the aerospace section but no replies? Still getting used to the organisation of the forum...
Good morning,
Since I have not had any replies, I suppose my question is too specific. Can I ask how other people usually go about generating stress-strain curves for materials? Do companies do thier own internal testing on materials and generate thier own material properties database? I would...
Dreber,
When you make a cut-out in a shear panel, the shear loads are transferred to adjacent panels above, below, and to the left and right. Sometimes the skin can carry this extra load but often it creates hotspots as you have seen. To mitigate this, what is done is to add framing around the...
We do this very often in rail cars, cutting holes in the side to add doorways for passengers and equipment. You're lucky in that the hole is in the middle. We typically have to add them at points of highest shear. The corrugation immediately to the left and right will double in shear load. I...
Hi Pimech,
What precision in motion do you need for this mechanism? Some linear rails for 1.5t are going to be expensive. I have succefully attached supported round linear rail to a welded assmebly of 4x4 tubing. A lot of care was put into making sure the weldment was as straight as possible...
Good Afternoon,
I am in the process of creating standardized calculation sheets for a new job. One of the sheets will be a buckling and crippling sheet, based on Flabels/bruhn niu etc.... The issue I am having is with the tangent modulus curves presented in MMPDS-01.
Each compressive stress...
Good Afternoon,
I am in the process of creating standardized calculation sheets for a new job. One of the sheets will be a buckling and crippling sheet, based on Flabels/bruhn niu etc.... The issue I am having is with the tangent modulus curves presented in MMPDS-01.
Each compressive stress...
