Greetings,
I was wondering if someone could tell me how to create a draft hinge curve on a solid based curved surface. For instance imagine I extruded an ellipse and wished to generate a draft on the curved portion of the extruded ellipse BUT I want to have the draft hinge follow the curved...
Go to engspreadsheets.com... download 3-D State of Stress and it will calculate the equivalent Von-mises stress given a full 3D state of stress.
ThetaJC
Founder of www.engspreadsheets.com your source of no cost, professional grade spreadsheets.
There are several good books on this subject matter. Ductile materials generally tend to fail in shear while brittle materials generally tend to fail in a plane perpendicular to the normal stress. So although not an absolute rule, a good guideline is to use Von-mises stresses (or Tresca...
I think it was inherent in the word "Ambient"; approximately 68°F would be my guess as I believe he was implying standard temperature conditions.
ThetaJC
Proud member of www.engspreadsheets.com!
Don't know if this would help, but there is a good website I found that has a choked flow spreadsheet that allows you to experiment with different input parameters, and look at how the mass flow rate changes in a chocked condition.
www.engspreadsheets.com
It seems like the site is still in an...
I have a question concerning converting PSD random vibration levels into a representative block of time history. I am able to write a software code that converts G's vs. Hz in the frequency domain back into a G's vs. time in the time domain by including a random phase number. I have a...
Hello,
I am looking for a book that has a good foundation on mechanics of materials of orthotropic and anisotropic materials. Specifically I am looking for a book which introduces characteristic matrices, stress tensors, strain tensors, etc. of anisotropic materials. My limited understanding...
To the credit of an old physics professor I had in college:
Think of unconstrained thermal expansion as photographic enlargement. Follows the same principle. The scale increase of the object is (1+alpha*dT). So the new dimension is [original dimension*(1+alpha*dT)].
I agree w/ the general consensus. Ansys has lousy customer support in my opinion based on my experience and a legal threat such as that was ridiculous. Sounds like it was some time ago, however, I would have suggested seeking legal council in that case. The only threats that seemed to be made...
Hello,
I have a question about modeling thin plates with Solid elements. We typically deal w/ structures which have constituents of the geometry that are flat plates which transition into more traditional 3-D elements (not FE). An example would be a circuit card with a bonded...
I am having two problems with Ansys.
Problem #1
Imagine a simple rectangular plate with some semi-circular notches. The plate is 4"x8"x.1". I am using shell 93 element. My only load is a negative (tensile) line pressure that is being applied to one of the two short edges of...
Got Cook's book and found it to be a very nice supplement to the Chandrupatla book. Thanks for the suggested reference Jerzy. At this point I have put any remaining doubts due to the total potential energy on the back burner to be resolved at a later time. Now I am jumping into shape...
