Ashby Charts: Choosing Material Family to Minimize Weight/Mass & Meet Deflection; Load Capacity Goal
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- Опубликовано: 26 авг 2024
- LECTURE 03b
Playlist for MEEN361 (Advanced Mechanics of Materials):
• MEEN 361: Advanced Mec...
Playlist for MEEN462 (Machine Element Design):
• MEEN 462: Machine Elem...
This lecture was recorded on December 11, 2019. All retainable rights are claimed by Michael Swanbom.
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Thank you for your support!
I've been struggling to understand the concept of Ashby Charts during my undergrad study, but your lecture makes it clear in half an hour. Great teaching, I hope you can enligth more minds like mine, thank you Sir!
I'm glad I could help! Thanks for watching!
this is great! you have restored my faith in good teaching - i'm not dumb!
Thank you for the positive review! I'm glad it helped! Thanks for watching!
Always excellent in making impeachable understanding.
when desiging my high powered rockets, i have to use a thrust to weight ratio in order to make sure it will meet my metrics. Also other things we cant control; environment. Rain, corrosion etc
Once again, FANTASTIC!!!!!
I haven't heard from you in a while! I hope you're doing well!
Excellent teaching.
You are very kind!
It’s really a great video ! Thank you for sharing.
Thank you! I'm glad you liked it! If you haven't seen it yet, check out the playlist for the course:
MEEN 361: Advanced Mechanics of Materials: ruclips.net/p/PL1IHA35xY5H5AJpRrM2lkF7Qu2WnbQLvS
Thanks for watching!
@@TheBomPE Thank you for responding.
I’m sure going to check the whole playlist.
Keep it up.
It’s really a great video .You help me lot .thanks
I'm glad I could help! Thanks for watching!
question, shouldn't w=mg? or at least w=pALg i feel like we shouldn't leave gravity out
How can i choose material of pipes that carries hot oils...materail should be corrosion resistant and stable at the high temp and pressure of comptessed oil
Is there any free software to plot Ashby plots?
Where can i put a line with a slope 2 for example. It can have any Y intercept. Is there any guide to pick a y intercept for a line selection with particular slope
Hey Michael, thank you for the video. Which textbook are you using in this video?
I'm glad you liked it! I teach this course out of Shigley's Mechanical Engineering Design, 10th edition. There are many other more complete works regarding this topic; this video is really just an introduction to the idea of ashby charts. Thanks for watching!
Hi, what book had a more detailed information about the C values? I want to understand that 2/3 part better.
hej , it was very useful. good job. can you give a lecture about cost estimation using edu pack too? big thanks
What are you writing on? Lke the tablet thing?
Awesome video on Ashby Charts! Thank you!
I use a Fujitsu T901 with a gen 2 i7 and 16GB of ram. It has a wacom digitizer. I use onenote 2007 as the note taking interface, and camtasia for screen recording and editing. Thanks for watching!
@@TheBomPE Thanks!!
how am i to know which of the guidlines i am to pick ?
You pick the slope of your guideline based on the kind of loading. Flexural has a different slope than axial and so forth. There are often guides provided along with the charts to help you know which slope is appropriate for various loading arrangements. Thanks for watching!
hello please how do i choose the values for my fracture toughness and yield strength when making selection for pressure vessels? thanks
Have you watched this one? ruclips.net/video/E5tgDVN1zy4/видео.html
Does anyone know which book is he using in this class?
I teach this course out of Shigley's Mechanical Engineering Design, 10th edition. All the best to you!
can any body tell me how to find those minimum mass lines
what is the name of the book you use?
I teach this class out of Shigley's Mechanical Engineering Design, 10th edition. There are quite a few more thorough works out there regarding Ashby charts though. Thanks for watching!
What would be the y intercept of that coupling line? because we can put that line easily in CES any where keepings its slope the same. Will we need to calculate the y intercept by putting some values?
I have noticed that too;
I think its fair to say that you would have to estimate the Youngs Modulos, beacuse you need to have some parameter of resistence, to define the minimum of resistence the material needs to have, than you proceed to find the most efficient and manufacurable/acessable. I also have seen another video that teaches this. Im gonna send it to you, maybe it can help you.
ruclips.net/video/9RQkvcsRzbo/видео.html
I need to obtain the index for a cylindrical beam under deflection, do you know how can I obtain it?
the way I did I obtain S/Ro
but you said that's for axial force, so Idk if it depends on the geometry of the material or I'm just bad with mathematics haha
You might check out this source: materialstandard.com/wp-content/uploads/2019/06/ASHBY99-Materials-Selection-In-Mechanical-Design-2Ed.pdf
I believe something close to the derivation you are seeking can be found in chapter 5, and generalized further in chapter 8.
Thanks for watching!
Hello sir . I am from an Arab country, can I find a translated video for you in Arabic? Please answer me 🥺
I'm sorry, I don't have resources to translate my videos to Arabic. I hope you find something that helps you! Maybe RUclips will do an automatic translation at some point.
How is weight = mass???????!!!
Please provide a timestamp for where I said weight and mass are the same thing.
In the meantime, please understand that if gravitational acceleration is assumed constant (a very common assumption to make for items intended for use on earth) then weight and mass will scale proportionally to one another. Therefore for earth-bound components, designing for minimum mass is the same as designing for minimum weight.
I am doing ok sir, just been busy with my research work. I send you an email describing what I am working on if you don’t mind.
hey prof, how are you able to move the guidelines?
I do the lecture in onenote. I had lines placed in the note beforehand that I could move.
@@TheBomPE Thanks sir.