Is it possible to predict the load at fracture for a simple FEA beam with some certainty using linear FEA package? For example, I am interested in finding the bracketed range of forces that could produce a failure of a cantilevered beam that is fixed on one end and a concentrated force on the...
IR Stuff,
What inputs are you referring too? Loads or Restraints or Mesh or Material Properties? Could you define failing miserably? What methods do you use to predict deflections then, experimental such as strain gages, etc?
Thank you Melone, I will try that. I am in the process of re-doing the measurements.
Also, have you heard of a gage verification study? I was reading a new paperbook titled, "all about six sigma" about the authors opinion about how a gage verification study may be a good option versus a gage...
I was hoping to get a x,y,z curve based off of some mathematical equation and do a sweep of those points.
Rgrayclamps,
Are you saying that if you start with triangle or diamond shapes when you hit the flex feature, the shapes will distort and become round? I am confused.
Does anyone know how to properly model a compression spring that is placed in a cavity that bends the spring to the cavity shape? I cannot get the sweep with twist to work properly or the flex or deform functions. Has anyone ran into this problem?
Yes thank you melone.
I am aware of the 3-10-3 idea. Our application involves a CMM machine that is automatically doing the measurement. Only one operator will be running the machine. Could JMP calculate the Repeatability section using only 1 operator? I know this has been encountered in...
We test a variety of our plastic molded parts for our product, and I am usually within 20% on displacement, we have not tried to find the stress with strain gauges. Are any of your experiences with molded plastic parts, filled with glass or no glass fibers? If so, did you predict the...
For example, I measure the width 3 gage blocks, 1.000", 2.000", and 3.000". I measure them 10 times each and repeat it once as the same operator. I would like to know the amount of the tolerance that is being taken up in my measurement? I would calculate the P/T ratio. Do I have to repeat my...
Has anyone validated their predicted FEA stresses or displacements with simulated testing? If for example, you wanted to validate the deflection of a simple rectangular cantilevered beam, how close could you predict displacement? Within 20%, assuming of course you accounted for infinite...
I would like a generate a helix that follows a defined radius. This helix will be used to generate a compression spring using a sweep. I would like an equation that I could modify based on input variables (pitch, length, radius, angle of radius, etc) that would give me (x,y,z) points that I...
I need to model a helical compression spring that is going around a curve. As of now, I have modeled the spring as a tube, one sweep feature. Is there a way to do this? I was thinking of using 3D points, and then sweeping the points. I do not know how to generate the 3D points though. Also...
Could someone please tell me if my design methodology is correct for checking the stress and deflection of snap locks for plastic.
1) Model up the snap beam
2) Apply material (yield strength, modulus of Elast. from vendor sheets)
3) Apply constraints, loads, mesh.
4) Run FEA.
5) Check...
Another option is to save as and rename the fastener, with the assembly open, and place the newly named part from the toolbox and place it in your assembly folder, so it never looks at the C: or Network drive. The problem you are having has two roots, wrong configuration or wrong directory...
Scott,
TheTick is right, I want to be able to put a triangular border around the numbered note, so that it appears to jump out at the 'non-technical' people inspecting/viewing the drawing. You can RMB the dimension and 'show as an inspection' but this does not work to our satisfaction. It...
Is there a way to attach a note to a dimension, and have the note follow with the dimension if it moves? I am thinking about adding inspection points to a dimension with a triangular border, and if the size of the part changes later, I want the note to stay with the dimension, not get stranded...
If there anyway to save/export a recorded simulation to a AVI file or other video file format. This would make it possible to export the file to an external vendor or third party? I love this feature that Solidworks has added, and it would be nice for everyone else, i.e., marketing, sales be...
I need help modeling a special torsion spring. I want the legs of the torsion spring to be parallel to each other. My current model depicts uses 3 curves (2 straight lines, and a helix) combined into a composite curve, and then I swept the whole thing. This produces a torsion spring but the...
