[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

View post   
File: 1016 KB, 188x141, 1328674060970.gif [View same] [iqdb] [saucenao] [google]
4580542 No.4580542 [Reply] [Original]

So /sci/, I'm doing a project in one of my engineering classes in which I'm tasked of creating an artificial bone implant. My assigned bone is the fibula. Unfortunately, I can only use cardboard, paper, water, string, and glue to create it. It will be tested with force and it needs to support as much as it can (preferably 20 newtons or more). I plan to build it with a base (which is undecided) and wrap it in wet paper (sort of like paper mache). Then, I will try to seal it up with cardboard to make it stronger. What do you guys think? Have anything to add? Suggestions, ideas, or correction/fixes?

>> No.4580557
File: 1.90 MB, 300x238, 1331961114931.gif [View same] [iqdb] [saucenao] [google]
4580557

Come on, guys. Help an anon out.

>> No.4580576

FROGS XD
rofl silly frog you missed the bug!

>> No.4580578

>>4580557
that .gif

>> No.4580589

Will the force be tested through compression or bending?

>> No.4580594

>>4580589
Bending

>> No.4580616

>>4580542
plug in your loading conditions and material properties into a topology optimization program, it will show you the optimal geometry for your problem pretty quickly.

Other than that, I would highly recommend against using cardboard, water, string, and glue to make an implant, as these materials are not biocompatible.

>> No.4580622

>>4580594

I'd say a composite using mainly the cardboard and string, laminated together at all stages with glue. The cardboard should be a series of tubes, with the string running down the length of the structure at each layer.

>> No.4580626

>>4580616
Thanks for the suggestion.About the materials, I have no choice, so I'm stuck with using this crap.

>> No.4580650

Could create a plywood-esque material by gluing many, many layers of paper together. Then, after it dried, you could carve the shape you needed out of it, wrap that shape tightly with string and coat with glue again. I suppose if you wanted more structural integrity, you do multiple layers of wrapped string (soaking each in glue and allowing it to dry before laying down another).

>> No.4580663

>>4580650
Great! I might try that. Thanks!