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How to measure strength? DIY stand vs Fiberglass vs Carbon Fiber vs Kevlar. Basics of composites #4.

ALEX LAB
2024 ж. 13 Мам.
31 538 Рет қаралды
Жүктеу

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ABOUT VIDEO
How to measure the strength of composite materials? In this video I show how to make DIY tensile stand, how to make composite samples. You will learn what material is the best for your project - fiberglass, carbon fiber or kevlar.
TIMECODES
0:53 About project
1:30 DIY strength test stand
4:31 Composite samples
9:37 Tests & results
FOLLOW ALEX LAB:
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WATCH MY COLLEAGUES VIDEOS
@easycompositestv Best tutorials about composites ever.
@FranklyBuilt Tutorials about 3D printing and cosplay suits. Thank you Frank!
@MadeWithLayers 3D printing basics ​& everything for improving your printing skills.
@KYLEENGINEERS everything about carbon fiber and fiberglass. Thank you Kyle!
@TechIngredients composites, rockets, simple explainers of complex stuff. Thank you, professor!
Guys, thank you so much for all your videos and your help.
MUSIC (in clip order)
Amped Adapter by Marc Robillard artlist.io/song/4376/amped-ad...
Punch by Oliver Michael artlist.io/song/28449/punch
Out On My Skateboard by Mini Vandals
You know you want it by Orkas artlist.io/album/2345/you-kno...
American Idle by RKVC
Glacier by Patrick Patrikios
Wannabe by G9 artlist.io/song/5649/wannabe
Horizons by Ian Post artlist.io/song/3212/horizons
#alexlab #basicsofcomposites #3Dmodeling #3Dprinting #compositematerials

Пікірлер

  • Ask technical questions here 👇

    @ALEXLAB@ALEXLAB Жыл бұрын

    • How about HDPE or UHMWPE/Dyneema?

      @piotrjasielski@piotrjasielski Жыл бұрын

    • Why not make it out of the structural fiberglass and put the carbon fiber as the final layer? Also, part of kevlar's strength is that it is offset by something like 45 degrees on each layer. If you haven't already, you could implement that technique into the structural fibreglass as well--it may affect the tensile strength by layer.

      @RvnKnight@RvnKnight Жыл бұрын

    • Well where is the repulsor?

      @brunoencizosalazar3897@brunoencizosalazar3897 Жыл бұрын

    • @@brunoencizosalazar3897 are you gonna finance him for the cost of palladium??

      @marz.6102@marz.6102 Жыл бұрын

    • Will the joints Of the suit be covered on a kevlar composite?? Also, how about a different epoxy that graphene from the flash graphene is added, maybe that the missing piece? From what people said of putting graphene, if added to concrete, it will increase it's strength.

      @marz.6102@marz.6102 Жыл бұрын

  • All your videos are 100% gold, they are so informative and cool, pushing the limits as to what is possible. You outperform the hacksmiths exoskeletons like it was butter! Its so cool! Love it! And im looking forward to seeing the progress.

    @AkselBredahl@AkselBredahl Жыл бұрын

  • I've done something similar for strength testing, but on smaller scales something that I have found works is to attach the wire/string to the load point at one point and a bucket for holding water on the other, then slowly add water until the test part snaps then weigh the bucket. A bit slower, but more exact than the lifting weight method and cheaper than a load sensor.

    @nautica8745@nautica8745 Жыл бұрын

  • Alex great job again I am a very old subscriber and I really love how much you have progress on this project. I hope to finally find a big sponsor because you are the only one that I know who is so accurate and close to create a realistic and factional suite like this. Great job again and keep going!!

    @alexskou7195@alexskou7195 Жыл бұрын

  • So glad I realised you had returned! ❤

    @joeyates8707@joeyates87078 ай бұрын

  • Thanks for new video Alex and good luck because you are so close to 1 million 🎉😊

    @lawsongangster@lawsongangster Жыл бұрын

  • I'm loving the consistant videos keep it up!

    @Nyubug@Nyubug Жыл бұрын

  • This video is amazing! Thanks so much for sharing all this info dude

    @Jannie303@Jannie303 Жыл бұрын

  • Amazing work as always!!!

    @MechanicGoneRogue@MechanicGoneRogue Жыл бұрын

  • Always happy to support an earnest, and dedicated, scientist as much as I can. Liked and commented. 👍

    @DerUberGaijan@DerUberGaijan Жыл бұрын

  • Exciting ! Definitely experiment with different weaves !

    @nickdavis5420@nickdavis5420 Жыл бұрын

  • Good luck with the suit. Love your work so far. I have no experience but remember once saw a layering of carbon fiber (and possibly fiberglass and maybe kevlar weave) was done with a rotation of the layering resulting in stronger mesh for car part. I would recommend a small test with a rotation of 45 degrees to purposely misalign the weave...hope you try it and see if you get any benefit for the suit build.

    @Rick-nj2pi@Rick-nj2pi Жыл бұрын

  • Some one get this man a contract, workshop, and grant!

    @calebwoolsey4161@calebwoolsey4161 Жыл бұрын

  • Bro every word out of your mouth flies over my head, but this is so cool could not stop watching!!

    @danlarch3560@danlarch3560 Жыл бұрын

  • I only just saw your latest video by chance. KZhead suddenly stopped recommending me your videos after part 1 of this series. Glad to see you back though. I appreciate that you never post videos for the sake of releasing a video, each video shows something with purpose.

    @H34...@H34... Жыл бұрын

    • Thank you for your feedback, I also noticed it. Can you see all videos if you are on Alex Lab channel?

      @ALEXLAB@ALEXLAB Жыл бұрын

    • @@ALEXLAB yes, one of your shorts popped up for me. I saw it was from very recently, so I went to your channel and saw there were three whole videos that had slipped by me. I've watched all your older videos, and so used to get each new one in my feed when it released. Sad to see this happen, and I'm sure it's disappointing for you too. Best of luck.

      @H34...@H34... Жыл бұрын

    • @@H34... same here

      @joetheporco3855@joetheporco3855 Жыл бұрын

  • hey alex, this suit you talk about is the ironman suit ? im happy to see you back!!!

    @joetheporco3855@joetheporco3855 Жыл бұрын

  • I love that "Нихера себе" at the end of the video 😄 Great job, I hope you will get the kevlar for your suit 👍

    @CCXR1@CCXR1 Жыл бұрын

  • great video would also be interesting to compair different bonder as that plays a big part in the stiffness and brittleness of the part

    @charlesballiet7074@charlesballiet7074 Жыл бұрын

  • Amazing as normal 👍

    @keepfishingneverstop@keepfishingneverstop Жыл бұрын

  • One thing to consider is if you want the nice cosmetics of the beautiful carbon fiber, but still want the cost/strength of fiberglass or kevlar, you can simply use the stronger material, then put a single layer of the pretty stuff on the exposed surface. Might be obvious to some, but it's often overlooked.

    @stormycatmink@stormycatmink Жыл бұрын

  • To add a little to the conclusion, fiber glass (S glass) is "stronger" than carbon fiber. Fiber glass can withstand more tensile load than carbon fiber for a given weight, Kevlar is even stronger than that. Even if you use E glass (what more people use when they use fiber glass) carbon fiber is only about 20% stronger. If the force is in compression Kevlar becomes much weaker than even E glass. Kevlar does however have very good abrasion strength compared to the other two. So if you plan on sliding across the concrete Kevlar is a good option Carbon fiber is by far the most "stiff" of these three materials, which is why its used on lots of race cars, because the shape of an element is important to keep. Carbon also has very little "elongation" compared to S glass or Kevlar, so if something is very positionally important Carbon is the way to go.

    @Iri5hman@Iri5hman Жыл бұрын

  • Estou trabalhando num projeto desses mas nessa questão de fibra de carbono ser.mais leve e bom , porém a Lan de vidro e bem flexível será que e possível juntas camadas de LAN de vidro e fibra de carbono , revestir de metal a armadura seria um peso a mais . Bom mesmo assim eu espero ansioso para o próximo vídeo , deixe os vídeos com pelomenos uns 20 minutos , gosto de vídeos longos para maratonas enquanto janto e almoço , abraço aqui do Brazil não desanima estamos acompanhando 😁

    @LPinventos@LPinventos Жыл бұрын

  • You need shallow angle lens, and position camera further away from the ruler, to decrease perspective distortion.

    @homematvej@homematvej Жыл бұрын

    • This way your measurements will be more accurate

      @homematvej@homematvej Жыл бұрын

  • Hello from Tokyo Alex! Big fan. I have a project that required a custom shape 1000psi tank… I’m hoping to use a a similar technique. The make the tank, would you know how many carbon fiber sheets would be needed for 1000psi? 800psi is CO2 gas. I am also assuming they the 3D print coins simply be the “inner” shell and reinforced by adding the epoxy plus CF sheets over the 3D print? What would you advise?

    @r.in.shibuya@r.in.shibuya Жыл бұрын

  • Lets help alex for the Kevlar!!!!!

    @maromontemayor7027@maromontemayor7027 Жыл бұрын

  • Can we please get an update video on your lightsaber? I would be very interested in seeing a tighter laminar flow (I've seen it done with a MIG welder tip), as well as what would happen if you arc the high voltage from a stun gun into the blade. Please?

    @joshuawayne9811@joshuawayne9811 Жыл бұрын

  • What happens if you use a regular black fabric for non critical applications, instead of fibre glass ? Should work ? Some fabrics might be even more easy to stretch, give similar visual effect as carbon fibre, just with much less strength ?

    @SarahKchannel@SarahKchannel Жыл бұрын

  • good video

    @legendrygamer4633@legendrygamer4633 Жыл бұрын

  • 7:43 Question: is there a roller that can be used that’s made of something that the epoxy will not stick to instead of using a card like you’re in the video?

    @user-nj3dd5cx8l@user-nj3dd5cx8l7 күн бұрын

  • I am not sure you correctly factored in the different thicknesses of your materials, since you didn't go into detail on your calculations. Just to be certain, the correct formula for the bending resistance of a rectangular crosssection is (Width*Thickness^2)/6. That means for double the thickness, you would expect to see quadruple strength in terms of bending load. Did you calculate it that way? Because I am suprised fibreglass comes out at the same strength as carbon fiber. Also, consider apllying pressure to the part while the resin is hardening, for a higher density of fibres and better strength per thickness (weight) in the finished product.

    @leopeter9051@leopeter9051 Жыл бұрын

  • I have a project i want to build but im now as knowledgeable as you, was wondering if you could help me out .

    @ipadpad3625@ipadpad362521 күн бұрын

  • Thank you for this video.

    @vovochen@vovochen Жыл бұрын

  • 12:10 what is the weight of carbon fibre and glass fibre samples you used in this test?

    @Failer__@Failer__ Жыл бұрын

  • What about flying system like iron man

    @Ankit_dude@Ankit_dude Жыл бұрын

  • Check vaccum infusion of resin, stronger and lighter tgan your method

    @kwk8363@kwk8363 Жыл бұрын

  • Imagine just combining all of them and getting a super composite

    @saucelessbones5872@saucelessbones5872 Жыл бұрын

  • The iron man exists!

    @vernam6615@vernam6615 Жыл бұрын

  • Maybe 3d printed thin tungsten plates would be best for the chest but it will add weight and cost, kevlar is better but still expensive.

    @AKG58Z@AKG58Z Жыл бұрын

  • Love from india

    @samarmanjhi4146@samarmanjhi4146 Жыл бұрын

  • 3d printed titanium about half a inch in diameter thin plates over laping the 6 layer of kevlar

    @stonedsurvival4203@stonedsurvival4203 Жыл бұрын

  • Can u share the sheet?

    @sebascardonac@sebascardonac2 ай бұрын

  • Wait what! I came back to watching your videos and now I see freaking giga chad guy is running your channel!

    @soups0I@soups0I Жыл бұрын

  • “I need YOUR SUPPORT😈” xD

    @artemgrauberger8775@artemgrauberger8775 Жыл бұрын

  • Алекс лаб ты гений можешь поделиться чертежами?

    @user-xd2km8io8r@user-xd2km8io8r Жыл бұрын

  • While I'm note entirely comfortable giving complete technical info on an open youtube channel, HDPE as a body armor substrate should not be dismissed. Depending on your needs (assuming ballistic?) density and weave retention under deformation are critical parameters to consider, and why kevlar has been the 'gold standard' to date. I know there is some advocacy for ceramics, but the downside is that they only protect/work Once and must be replaced after impact. On the other hand, if there's a death squad approaching your house and all you have are floor tiles, they'll do an above average job (ahem, Once!).

    @C-M-E@C-M-E Жыл бұрын

  • Maybe if OceanGate used Kevlar/Carbon fiber instead of pure carbon fiber, they might still be around today…oops

    @VincentArdolino@VincentArdolino9 ай бұрын

  • I think you're going to eventually have to get your knees replaced from the extra stress you're putting on them while riding your electric unicycle. And, knowing you, you'll have one knee in one material and the other in a different material and you will post your analysis of each material's performance.

    @choimdachoim9491@choimdachoim94914 ай бұрын

  • 15:59 XD

    @mark_parker@mark_parker Жыл бұрын

    • нихера се

      @swozer5259@swozer5259 Жыл бұрын

  • Hay how are you?

    @verifernando5622@verifernando5622 Жыл бұрын

  • Comment to feed the algorithm

    @mishtrong@mishtrong Жыл бұрын

  • Jet engine kaise banaye

    @muskan_mishra4488@muskan_mishra4488 Жыл бұрын

  • LIKE 👍 👍 👍 👍 👍 🤩 🤩 🤩 🤩 💞 💞 💞 💞

    @wowyummyyy@wowyummyyy Жыл бұрын

  • Alex do you think we chat friend

    @DJFOX_MixxmastahMurakamiswami@DJFOX_MixxmastahMurakamiswami Жыл бұрын

  • How did you unlock the thanos chin cosmetic?

    @eugeneyuan806@eugeneyuan806 Жыл бұрын

  • *promosm* 😇

    @jeffreyroberts8981@jeffreyroberts8981 Жыл бұрын

  • If you had unlimited budget you could make it out of graphene

    @clarence-olivierdanel1381@clarence-olivierdanel1381 Жыл бұрын

    • From vibranium

      @pitrek121g@pitrek121g Жыл бұрын

  • I dont know if u can do this or see this message but can u make me a iron man glove in iron that works and u can put your hand in it And ill pay you

    @ivar_makes_stuff@ivar_makes_stuff Жыл бұрын

  • Эх а я так хател сматреть тебя но ты тепер стал разгаваривать на англиском пж дабавь рускую озвучку

    @valeriy_54@valeriy_54 Жыл бұрын

    • У него же другой канал есть.

      @alexdro4389@alexdro4389 Жыл бұрын

  • shattering is good. it means that the energy of impact is directed away from the body. that is exactly why cars use it.

    @disp3rsion@disp3rsion Жыл бұрын

    • You don't wear car on your body. Shattering parts aren't good when they can stab you.

      @pitrek121g@pitrek121g Жыл бұрын

    • @@pitrek121g they wouldn't stab you because they fly outward. And you do wear car on your body. You sit inside a car, so it goes without saying that the car wraps around you

      @disp3rsion@disp3rsion Жыл бұрын

    • What are you taking about? Since when cars use shattering as protection of the occupants? It's completely the other way, modern cars use corrugated steel or aluminium crash structure that will deform, not break, thus absorb as much of the force created by impact, as possible.

      @Failer__@Failer__ Жыл бұрын

    • @@Failer__ consumer cars use metal as a crumple zone. Race cars shatter as a crumple zone. Look up "WHY DO F1 CARS BREAK SO EASILY". Either way, it's obvious that shattering requires energy

      @disp3rsion@disp3rsion Жыл бұрын

  • Славянские вперед😅

    @user-kn5yf8me2d@user-kn5yf8me2d4 ай бұрын

  • Kevlar is strong, huh? I saw it lose to a scissor just now. Weak I say! Weak!

    @zachariaskilpatrick9870@zachariaskilpatrick9870 Жыл бұрын

    • I really hope this is a joke

      @jaisere@jaisere Жыл бұрын
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