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  1. Integrator62

    Truss and Energy method

    Thanks everyone. I was of internet for days. Its clear to me right now :)
  2. Integrator62

    Truss and Energy method

    I got this doubt suddenly. I have shown a two member truss having same E and A and Pin joint end conditions. Let, W= work done by external force, which is, Fdy E1 is the Work done by Member 1, which is, F(1)^2*L/EA E2 is the work done by Member 2, which is same as E1, F(2)^2*L/EA (I may...
  3. Integrator62

    Beam deflection problem

    Thanks everyone. I like to go through the link. [bigsmile]
  4. Integrator62

    Beam deflection problem

    Double Integration method and Area moment method is used to determine beam deflection assuming that the elastic curve is very flat with the result of ds=dx. How much deflection can be measured using this process without serious error? In the picture below (Cantilever beam), After using double...
  5. Integrator62

    Solidworks beginners class @ work

    I like to share my experience. I am also very new and I think Experience is the most important thing. A months before I often find a lot problems applying features like swept or Loft and thought it as Bugs which things are rare to me today! There are also many problems like I cant do...
  6. Integrator62

    Balsa wood properties

    Thanks glass99 Ingenuity Yes I know, sandwich structure. Btw will you please suggest me any solid wood other than balsa?
  7. Integrator62

    Truss Beam problem!

    Yes I got the point! BC and CD will face very little I guess, so neglected. All is left is a 3 member frame! Load along BD later apply force on DC member, and again increase the Moment on AB by bending DC! Things get rough! I hate to do iteration! I am tired of it! Ill try some days later...
  8. Integrator62

    Truss Beam problem!

    A lot thanks CANPRO [bigsmile]. This will help me a lot! [bigsmile] Thanks rb1957. But I hardly can understand. Ill be very grateful if you simplify this. I have added a photo... [smile]http://files.engineering.com/getfile.aspx?folder=3f87c596-9c62-424d-820d-bdd993a041c0&file=Untitleddfdfdf.png
  9. Integrator62

    Truss Beam problem!

    Ill do it a little days later I hope. [smile] Just made a little try for a very simple model and Stuck! Tried to use min potential energy method, but can be done using simple calculation. Iteration process is probably the only way, which is very time consuming. May be impossible without...
  10. Integrator62

    Truss Beam problem!

    Thanks everyone. [bigsmile] So I have got two ways. 1) Truss consideration: i) Consider it as pure truss, 1st order analysis ii) Consider the moments in joints, recalculate, 2nd order analysis 2) Beam consideration: i) Consider chords as pure beam, 1st order analysis. ii) Consider the...
  11. Integrator62

    Truss Beam problem!

    Thanks everyone. [smile] Unfortunetly I cant buy books right now. So, things get tough for me! However, DamsInc, will you please Describe a little about it? specially "noding eccentricity", I havnt heard anything about it. [smile] I guess the Chords will act as pure beams, So there should...
  12. Integrator62

    Truss Beam problem!

    In the picture a space truss beam is shown. Its not a truss because the Webs are welded, not pinned and the main four exterior members are solid Members. So they can resist bending moment where in pure truss they only can resist Tension and compression. Its basically a open web complicated...
  13. Integrator62

    Material for Aircraft

    As far I know, PVC beam is available in market. Only screw joints are possible I guess in this case. But wood is excellent. Very easy to machining and Joining. Thanks everyone [smile]
  14. Integrator62

    Balsa wood properties

    Thanks everyone. [smile] Then sandwich structure with balsa core sounds best. Glulam beam also sounds very good.
  15. Integrator62

    Material for Aircraft

    Is PVC box beam is good?
  16. Integrator62

    Material for Aircraft

    For aircraft please name some good (High Specific strength, cost efficient) material for Beams that will undergo both compression and bending. Its like homebuild aircraft of about 10 ft in length and 50 kg in mass.
  17. Integrator62

    Balsa wood properties

    Thanks. [smile] I see, even wing spars are built with Balsa wood blocks! It sounds interesting. I have to rethink of material selection.
  18. Integrator62

    Balsa wood properties

    Thanks everyone. [smile] Sorry for being offline for days. I will use it for a homemade aircraft actually. Your comments are really helpful, I like to switch myself from balsa wood to another material. Ill look for a better one. Suggestion will be greatly appreciated. [bigsmile]
  19. Integrator62

    Balsa wood properties

    Low, Medium or High density, Which types of balsa wood is most cost effective and Structurally efficient and available in market? Is it possible to have a balsa wood block of 5ft long and 3x3" cross sectional area in market? As this wood beam will be subjected to bending, to make it highly...
  20. Integrator62

    Beam and cable problem. HELP!

    Thanks. [smile] desertfox. Ill go for a little complex procedure.

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