![Ryan Shamet](/img/default-banner.jpg)
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Ryan Shamet
United States
Registrace 12. 05. 2020
Lab videos relevant to Geotechnical Engineering course at the University of North Florida. If you aren't one of my students, enjoy the educational videos.
If you ARE one of my students.. lab reports are due next week... and also enjoy the videos!
Ryan Shamet, Ph.D., P.E., M.ASCE
If you ARE one of my students.. lab reports are due next week... and also enjoy the videos!
Ryan Shamet, Ph.D., P.E., M.ASCE
Stress & Strain - Concepts & Examples - Civil Engineering Materials - Engineering Mechanics
00:00 Topics Covered
00:43 Material Concepts and Key definitions
04:46 Modulus of Resilience from Load and Deformation
08:58 Reading a Stress Strain plot
11:51 Energy absorbed from stress strain?
14:43 Concepts of "creep"
17:51 Poisson's ratio from deformation
21:45 Resulting Diameter after loading? (Poissons)
27:28 Force that will produce change in diameter? (Poissons)
32:29 3D Hooke's law (pressure chamber)
37:11 Phase Diagram
00:43 Material Concepts and Key definitions
04:46 Modulus of Resilience from Load and Deformation
08:58 Reading a Stress Strain plot
11:51 Energy absorbed from stress strain?
14:43 Concepts of "creep"
17:51 Poisson's ratio from deformation
21:45 Resulting Diameter after loading? (Poissons)
27:28 Force that will produce change in diameter? (Poissons)
32:29 3D Hooke's law (pressure chamber)
37:11 Phase Diagram
zhlédnutí: 244
Video
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Tutorial: Professional Map making in Google Earth
Finding at-rest horizontal earth pressure profile behind retaining wall
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Finding at-rest horizontal earth pressure profile behind retaining wall
CGN 3501 Lab 6 - Moisture Content + Compaction Curves
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CGN 3501 Lab 6 - Moisture Content Compaction Curves
CGN3501 Lab 5 - Concrete Mix and Slump Test
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CGN3501 Lab 5 - Concrete Mix and Slump Test
CGN3501 Lab 4: Bulk Unit Weight and Void% of Aggregate (Experiment)
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CGN3501 Lab 4: Bulk Unit Weight and Void% of Aggregate (Experiment)
CGN3501 - Lab 3: Sieve and Specific Gravity (Experiment)
zhlédnutí 285Před rokem
CGN3501 - Lab 3: Sieve and Specific Gravity (Experiment)
CGN3501 - Lab 2: Uniaxial Tension (Experiment)
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CGN3501 - Lab 2: Uniaxial Tension (Experiment)
Virtual Geotech Lab #1: Moisture Content of Soil
zhlédnutí 8KPřed 3 lety
Virtual Geotech Lab #1: Moisture Content of Soil
Virtual Geotech Lab # 7: Constant head Permeability Test
zhlédnutí 14KPřed 3 lety
Virtual Geotech Lab # 7: Constant head Permeability Test
can u upload excel for calculation, and show again zero correction
Thank you 🙂
Thank you 🙂 Watched all your Lab-Videos
Thanks
Thabk you
way more chill than my current instructor. great vid.
very cool
What an incredible channel, I'm reviewing basic stuff covered in soils mechanics and I think your videos are great.
Great video, I'm recently getting into soils mechanic and your content proved useful. Keep it up!
Can you please tell us the full # of times where measurements are taken?
what type of sand was used during the calibration?
Really helpful for my thesis Thankyou
Hey Ryan. Great job on the video. There are a few things I wanted to point out that are potential issues. When determining the Cone correction factor you need to do this procedure over the base plate, as you also need to account for the sand that is between the thickness of your base plate and cone. Second thing is you cannot manipulate, vibrate. rattle, or move in any way or you will affect the result of your density. Thirdly when you remove the soil from the test hole it needs to be placed in a moisture proof tared container so that you do not lose moisture and makes it easier for determining the mass for figuring out the wet density. Also worth mentioning is having holes drilled through your base plate so you can pin it to the ground so it will not move on you while excavating the hole. you may want to look into the proper procedure for filling the cone/container. Hope this helps and clears up and issues with determining the density of in place soils using sand cone method.
Nice insight fellow!
💖 'promosm'
Thank you for this video.
Watching to understand Newmark's influence chart yay idk how to do my hw
Sir you are amazing.
Please do a full CBR test next! there is literally not a single video of ASTM D1883 anywhere on the internet that is both in english and actually uses the standard.
The pycnometer is similar to a flask that is used to measure exactly volumes of liquids, indicated on the surface by a gauging line. I don't know how to say it in English, but in Spanish I know it as "Matraz Aforado"
I am just wondering, as opposed to the sand cone test, or nuclear density, or the balloon/water test, why not just put a thin bin-liner in the hole (very loosely put in), and pour water until the meniscus of the water is just touching the top of the hole? You could then just pull out the plastic bag, measure the volume of water, and that's that. I can't imagine it would be any less accurate doing it that way than a sand cone test? Could you elaborate please Ryan. I can imagine that air pockets might form, but if digging out to ~4inches was done carefully to make a nice bowl shape, surely this would be very accurate at calculating the volume of the hole (+/- a fraction of a percent error) with no need for any equipment other than a thin bin liner, a flat edge (so it touched the water meniscus) and some scales. Thank you
That would work if you control for temperature of the water, because the density, and therefore volume, of water varies significantly with temperature.
Very good videos, thank you for your work. Just a suggestion though: maybe show also how to work the data after the test, for those who are not your students. I know that's probably not your goal audience but it would be nice to see the rest of the analysis.
I think it's because the way you work your data is following some normative like ASTM, and as you might know it's not free.
I'm from Cambodia I'd like to say "Thank you so much" for sharing this lab experiment.
I appericiate your effort to educate viewers. You are using British Standard grooving tool and according to BS-1377 Part 2, you should add incremental amount of water between each test. Adding dry soil makes soil puddy to have dry crust, so homogeneous property that we are looking for isn't achieving like the standards suggesting us. There is a lot of nitpicky details in standards' documents to making perfect liquid limit test.
you can use other sizes like 100 mm or have to 500 mm?
Are you referring to the pycnometer (or flask)? Iif you are following ASTM D854-14, then the minimum acceptable pycnometer volume should be 250 mL. The ASTM also states "the volume of the pycnometer must be 2 to 3 times greater than the volume of soil-water mixture." Theoretically, however, you could use any volume of flask, as long as it is able to hold the necessary vacuum to de-air (saturate) the sample.
I've been looking for better ways of mixing soil for this test in our lab and ran across this video. Very educational but I noted 2 things that hopefully will help students. The water you are using should be distilled or demineralized and also when creating the valley in the Casa Grande I usually hold down the brass bowl to not allow the final second to pull up the bowl and accidently slam on the base. Thanks for making these videos.
Hi is that the results of the specific gravity that show in the screen, is that the specific gravity or not? Because in my calculations different from yours
The values of specific gravities are not shown in this video, but the values needed to calculate it are! The procedures and equations needed to calculate the Specific Gravity of solid can be found in ASTM D845-14.
If you're taking suggestions, could you do a video on classification of soils? ASTM D2487
Excellent
Hi I am running a small plant and interested in a simple way to measure the density of my slurry
Love your videos. Any videos on triaxial shear test and direct shear tests? You make them so easy to understand
I'm hoping to make some videos about more advanced Geotech testing soon! Triax, direct shear, and oedometer are on the list!
Thank you very much Sir! It was very helpful for me.
very helpfull video ,keep doing brother ,thanks bro
👍🏻
Good teacher 👌🏻
Excellent sir i need your WhatsApp no
Sir can I ask how to get the average flow?
The average flow is taken by measuring the collection of water from the effluent (cubic cm) over a specified time (seconds). Three separate measurements are taken then averaged.
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It was amazing ❤️❤️❤️👌🏼👌🏼👌🏼
Amazing
Please can you make a video on Menard Pressuremeter Test on soil? By doing so, you will do a great favor. Thanks for your videos.
thankuhh sir❤
Hi Sir, Do you have a video that shows measurement of Ksat using Eijkelkamp's Lab Permeameter? Or can you please share a link of that video that you are aware of ? Thank you