1=Find the Neutral Axis ( It divides the section in 2 equal halves ) 2=Find the Area of each section in a figure and multiply it with the centroidal axis of the section and then add of all of them.
Sir I want to know how to select sheet metal thickness while doing design, for selecting material we need to keep two things in mind one is cost savings and load carrying , by keeping this two things how can we select suitable thickness.
Hi Manoj. It appears that you’re looking at bending capacity of steel sections. If that’s the case then Mz would be bending moment and Z would be section modulus.
mohsin Rasool Section modulus is a quantification of strength of a section. Higher the section modulus stronger the section or harder to bend the section. Therefore, it lets you quantify bending stress, radius of curvature, etc. Watch this video ua-cam.com/video/rDbtM4H0ig0/v-deo.html
@@VikrantSrivastavaMaven Maybe the section modulus was created for anisotropic materials? For those kind of materials the neutral axis is not necessarily at the centroid. If we vary the material, we vary the y? I'm not sure about this. However, if we vary the y we vary the section modulus, while keeping the area moment of inertia the same.
Maybe the purpose of MOS is because of the following: All bending equipment have section modulus ratings. A three-roll section bender can be designed to bend steel with section modulus between 0.4 to 500 in3. So, to determine if the equipment can bend your steel section, you need to calculate the section modulus mathematically or by referring to engineering tables. Then, if that amount is equal or less than that of the calculated strength of the bending machine, your machine should be able to curve the section. Source: www.cmrp.com/blog/faq/how-is-section-modulus-used-in-bending-steel.html#:~:text=Section%20modulus%20is%20the%20direct,the%20design%20of%20flexural%20members.
@@Eurocoded but the unit should be mm^4 or m^4. Unit for MOI is mm^5 and for y is mm so mm^5/mm=mm^4. But apart from that, the video is good and well explained. Thank you.
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can you explain how to calculate the effective section modulus Weff,min? It is required in class 4 section. Thank you!
This is the elastic section modules and what is plastic section modules
1=Find the Neutral Axis ( It divides the section in 2 equal halves )
2=Find the Area of each section in a figure and multiply it with the centroidal axis of the section and then add of all of them.
Nice explained
Tirthojit Majumdar Thank you.
if im bending circular solid beam (pole) what is the section modulus? i want to calculate plastic moment
for moment capcity calculations, should we use, elastic section modulus or plastic section modulus?
Hello,
Please let us know how to calculate section modulus of a stiffener angle shape 100x100x8 mm to be used to remove tank shell distortion.
Thanks
How can a steel section reach yield stress in compression
Great Video!
Thank you
Sir I want to know how to select sheet metal thickness while doing design, for selecting material we need to keep two things in mind one is cost savings and load carrying , by keeping this two things how can we select suitable thickness.
Hi Umesh. What are you designing?
So the section modulus is a volume?
Sir do you explain how Zez=Mz/fy this formula is given in design of purlin , where,
Mz= moment of inertia
Fy= yield strength
Hi Manoj. It appears that you’re looking at bending capacity of steel sections. If that’s the case then Mz would be bending moment and Z would be section modulus.
Hi, how about effective section modulus for class 4?
why we find this and also tell the purpose of MOS
mohsin Rasool Section modulus is a quantification of strength of a section. Higher the section modulus stronger the section or harder to bend the section. Therefore, it lets you quantify bending stress, radius of curvature, etc. Watch this video ua-cam.com/video/rDbtM4H0ig0/v-deo.html
@@Eurocoded What does section modulus tell us that moment of inertia won't? What's the difference between them?
@@VikrantSrivastavaMaven Maybe the section modulus was created for anisotropic materials? For those kind of materials the neutral axis is not necessarily at the centroid. If we vary the material, we vary the y? I'm not sure about this. However, if we vary the y we vary the section modulus, while keeping the area moment of inertia the same.
Maybe the purpose of MOS is because of the following:
All bending equipment have section modulus ratings. A three-roll section bender can be designed to bend steel with section modulus between 0.4 to 500 in3. So, to determine if the equipment can bend your steel section, you need to calculate the section modulus mathematically or by referring to engineering tables. Then, if that amount is equal or less than that of the calculated strength of the bending machine, your machine should be able to curve the section.
Source: www.cmrp.com/blog/faq/how-is-section-modulus-used-in-bending-steel.html#:~:text=Section%20modulus%20is%20the%20direct,the%20design%20of%20flexural%20members.
at 4:00 "or m^3" is wrong
You can convert mm^3 into m^3. Hence, unit of section modulus can be m^3.
@@Eurocoded but the unit should be mm^4 or m^4. Unit for MOI is mm^5 and for y is mm so mm^5/mm=mm^4.
But apart from that, the video is good and well explained.
Thank you.
Hey yash, the unit mm3 explained is correct. Units type changes as per the system you follow.
@@yashghate6656, Section Modulus units are alway a distance cubed