Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by toys19

  1. toys19

    Heatsink Fin Attachment - Epoxy vs Braze

    Percolation - good word, didnt know it was used in this application! Good point Demon3, thermally conductive epoxy may well be good enough for this application, but I personally think they are a waste of time - Heres why: Many years ago I did some lab research on cooling and we found that we...
  2. toys19

    upward forces ?

    Well i think the upward force is really due to the tendency of the fluid to want to move to the outside, if there is fluid in its way, it will push it out of the way - and that fluid is driven to the outside also so its resultant is up. To estimate the upward force consider 1 gram (or1/1000kg)...
  3. toys19

    Heatsink Fin Attachment - Epoxy vs Braze

    Patprimmer spot on- And a conductive plastic, with lots of alumina in it, will not be very thermally conductive at all! (sorry to disagree Demon3)[smile] Thermal conductivity of some solids Alumina - 30 W/mk Brazing rod - 145 W/mk But this is not the whole story becasue the thermal conductivity...
  4. toys19

    V20 changes

    Hi Everyone, I have recently had a web demo of V20 from Algor. I have to say I was pretty impressed. The main feature is that it seems to respond really quickly, and that many functions have been streamlined, access to them seems to be easier and faster. This was my major concern, I can't...
  5. toys19

    V20 changes

    Smurgie, Thanks. Very useful for clumsy fingers like me! Will the new version have a different approach to saving and overwriting? (Its pretty brave of you to come on here, we will bombard you with questions!)
  6. toys19

    V20 changes

    In these things it always pays to go straight to source, I was told by my Alfor rep before Christmas that it has slipped further, I think its gonna be end of Jan now.... A further annoyance is that when you accidently press analyse it erases your results, and even if you close without saving...
  7. toys19

    HDPE Creep Constants

    Hi I have some hdpe creep graphs contact me off list. toys19@hotmail.com
  8. toys19

    How to create a thread contact between bolt and nut using ANSYS? thx.

    Hi, It depends on whether you are studying the bolted connection itself, or you just have bolts in a wider structural problem. When I am looking at structures that are bolted together, I normally bond the threaded area to threaded area, and inside of surface of bolt head to pressure surface. If...
  9. toys19

    V20 changes

    I agree that some parts of the model set up are good, other parts of it are, shall we say "under developed". I suppose that the model set up for contacts is where I am hoping to see the most improvement. I do lots of contact analysis so an auto detect of contact surfaces would be great... I have...
  10. toys19

    V20 changes

    Well according to the long chats I have had with sales staff and tech support, its supposed to be a complete re-write. The tabs between the 4 interfaces will be gone, everything will be presented in one interface, which I like. Also its claimed that the waiting time between operations will be...
  11. toys19

    Too Many Surfaces in Algor/Superdraw.

    Gbor, D'you know I think thats a really good idea, I shall give it a bash and get back to you with the results, thanks for all your input. L
  12. toys19

    Too Many Surfaces in Algor/Superdraw.

    Thank for your help. Trying to avoid setting up s-s contact in algor as it is really, really time consuming for this many surfaces. Its not like a ball bearing its like a very complex PVC geometry, with 50 percent of it embedded in concrete. I could just fix all the surfaces embedded in the...
  13. toys19

    Too Many Surfaces in Algor/Superdraw.

    Hi Again, Actually on reflection I dont think I see this working, I only want certain parts of my model to be restricted? Will it restrict the whole of my model? Thanks Toys19
  14. toys19

    Too Many Surfaces in Algor/Superdraw.

    GBor, Thanks for your rapid response. Yep it is non linear. This looks interesting, but let me explain further. The contact areas of my object are embedded in another object, the other object is of a very hard material, compared to the polymer the first object is made of. But there is no...
  15. toys19

    Too Many Surfaces in Algor/Superdraw.

    Hi, sorry client confidentiality stops me from showing part. Needless to say it has about 500 surfaces, its a complex injection moulded part with lots of ribs and ridges. I have reduced the part geometry down through symmetry and de-featuring.. The truss elements are applied at normals to the...
See more

Part and Inventory Search

Back
Top