Use the Method of Joints and BASIC Physics to Analyze a Truss | Statics
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- Опубликовано: 26 сен 2024
- Use free body diagrams and the Method of Joints to calculate the force in each beam or member of a truss.
Solve for the reaction forces acting that the pin and roller supports which are holding up the truss.
Use a common sense approach to determine whether each beam within a truss is under tension or compression.
Trusses are a fundamental part of the study of static structures and static equilibrium. Truss Analysis comes up in most courses that deal with statics. This includes introductory physics courses such as high school physics, AP Physics 1, AP Physics C Mechanics. As well as introductory engineering courses such as PLTW Principles of Engineering (POE).
This problem also serves as the foundation for more advanced statics engineering courses that appear at a college level in fields such as civil engineering.
This was amazing, I find that many other videos just talk about tension and compression without any reference as to whether they are talking about forces acting on a member or forces that a member exerts to oppose external forces, which led me to be more confused than when I started. You've reaffirmed my initial intuition of what each force represented. Thank you
the forces ON the beam vs the forces BY the beam is always a point of confusion, largely because different instructors / texts handle it differently, sometimes without being expliccit about what they are doing.
Brilliant explanation on method of joints. I could never quite get this in my structures class but now I've got it, cheers.
Thank you for making the best video I've seen on this subject. Sharing with my students tomorrow. 🙂
Well _this_ channel seems *_thoroughly_* underrated...
Might as well sub!
Welcome aboard!
I enjoy learning from your videos
Thanks! This one was fun to make.
perfect video really the only video I could understand anything off of about the method of joints I just didn't understand how you used the Pythagorean theorem to find the force in beam BD
If you know any two sides of a right triangle you can solve for the 3rd using the pythagorean theorem.
thanks your voice sexy btw @@INTEGRALPHYSICS
dude it makes so much more sense now how the fuck did I miss that !!!!!!!!@@INTEGRALPHYSICS
It's all force/load equilibrium.
Excellent 👍, 🙏 from India
Thank you!
Thank yiu so much
Very helpful
God Bless you
You are most welcome
Immensely helpful, thank you
Glad it was helpful!
Sorry, I don't get how you got 33.7 degrees. 2^m and 3^m equals 33.7 deg?
arctan of 2/3
How did you get that F(ab)= 90.1N ? I’m getting AB= 66.1N
First
it is very hard to imagine in my mind how the wooden beam can actually stretch like a spring and having a tension force...
The molecules that make up the wooden beam do not touch but are instead held by intermolecular forces of attraction. These intermolecular forces are the results of attractions between charges. The molecules of the wood are similar to two magnets that are attracted to each other. As you try to separate the magnets, there comes a point where there is a gap between the two magnets but they are still close enough to be strongly attracted to one another. This is how the wooden beam can "stretch". Although the "stretches" are molecular in nature.
What if AB is plastic and BD is steel?
that wont change the calculations, but it will affect which member is likely to fail first.
Not very infornative
Not true.
Quite a lot of help in this video