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  1. Jonmiller

    Look for expansion anchor (to hold metals) manufacturer

    Thanks for Frank's and Ted's replies. Avdel's and Bollhoff's are interesting. However, I demand those expansion bolts to resist large shear forces in most of my applications. Also, those special tools are a kind of problem to our applications, not because those tools are expensive or not. We...
  2. Jonmiller

    Look for expansion anchor (to hold metals) manufacturer

    I look for expansion anchors to hold metals together, from 1/4" to 3/4" dia. I knew one manufacturer Simplied Building (http://www.simplifiedbuilding.com/box_bolt.php). Their BoxBolt is really quite good but so expensive, $7 - $34 each. Can anyone recommend other expansion anchor manufacturers...
  3. Jonmiller

    Anyone can recommend any books about mechanical connection design?

    I found one! The First Snap-fit Handbook: Creating And Managing Attachments for Plastic Parts (Hardcover). But it is for plastic only. I usually design interlock connections in application of aluminum structures.
  4. Jonmiller

    Anyone can recommend any books about mechanical connection design?

    Davidstecker, Thank for your input. I just browsed its Table of Contents. It's quite good but not what I am looking for. I am looking for books to talk about the design of interlocks, snap-in, etc.
  5. Jonmiller

    Anyone can recommend any books about mechanical connection design?

    I am looking for some books related to mechanical connection and interlock design. Could anyone recommend any book particularly to introduce these kind of design in very detail. Thanks,
  6. Jonmiller

    Does anyone know any references about design of composite FRP I-beams?

    Wes C: My I-beam is 8 ft long with 2 ft O.C. lateral supports to the web. Linear loading is 40 lbf/ft applying at the top flange. I figured out the ratio of web height to web thickness is about 18-22 for web thickness <=0.100" and 22-25 for web thickness >0.100". So what's your opinion about...
  7. Jonmiller

    Does anyone know any references about design of composite FRP I-beams?

    3" (depth) x 0.5" (width). The alum flanges is approximately 0.080" and the FRP web is 0.090". The loading about 40 lbf/ft uniformly acting at the top flange of I-beams.
  8. Jonmiller

    Discussion: punch connection of aluminum T-shape flange and FRP web

    A circle punch is similar to a dimple on a flat sheet. Basically, I try to use punches to hold the double short aluminum stems and FRP web together to transfer/resist shear vertical and horizontal forces between the alum stems and FRP web. The expansion and contraction between FRP and aluminum...
  9. Jonmiller

    Discussion: punch connection of aluminum T-shape flange and FRP web

    I am designing a composite I-beam: two aluminum T-shape flanges with short double stems and flat fiberglass reinforced plastic (FRP) sheet as web. The FRP web will insert to the narrow channel between the double stems. I am thinking using circular punch 2-3" O.C. to connect the FRP web to...
  10. Jonmiller

    what factors influcence the thermal performance of FRP?

    thermal performance such as thermal conductivity and thermal resistance, etc.
  11. Jonmiller

    what factors influcence the thermal performance of FRP?

    What factors affect the thermal performance of fiberglass reinforced plastic sheets? Which factor has most impact on the thermal performance? Thanks for any advice.
  12. Jonmiller

    High thermal performance of FRP

    I am looking for a fiberglass reinforced polymer/plastic sheet about 0.085" and 0.125" thick but with lower thermal conductivity than common FRP sheets. Does anyone know any FRP manufacturer has this kind of product available? For example, typical FRP sheets have a thermal conductance of 0.19...
  13. Jonmiller

    Does anyone know any references about design of composite FRP I-beams?

    Does anyone know any references about the design of composite aluminum and fiberglass reinforced plastic (FRP) I-beams? For example, the flanges are aluminum and the web is FRP. Particularly, what ratio of web height to thickness of the web should be used to resist local web buckling? 25? 20...

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