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What else can I help you with?
Why I-beam's are preferable over rectangular beam's?
You just take an example as rect section with A=17.6*10=176 mm2 and your I section too has same area of 176 mm2. Calculate moment of inertia of rectangular section I = bd3/12 = 1466.66 mm4 For I section, Width of both flange = 20 mm, thickness of both flange = 4 mm, web length=16 mm, web thickness = 4mm. This gives you the same area A=176 mm2 Now Calculate moment of inertia of I section I =8938 mm4 (Do it from any online converter or by calculations) Now compare both Moment of inertia, I section has approx six times better moment of inertia as compared to rectangular section. Put up this moment of inertia values in deflection and bending stress equations and try to compare both. This is because the material is put up in such a way to get maximum moment of inertia with minimum material and min weight. Finally this is the reason why I beams are preferable over rectangular beams Once Put up this moment of inertia values in deflection and bending stress equations and try to compare both. you will get it in sec
What is torsion stress?
I need to calculate the stress resulting from a torsion moment on a hollow steel section as well as a flat plate.
What is the relationship between bending and strain?
From the Hooke law, stress s is proportional to strain e; s = Ee where E is elastic modulus of the material; the stress is the bending stress which varies from plus on one surface to minus on the opposite surface.
What is the difference between shear stress and bearing stress?
Sear stress are forces applied in opposition, producing a shearing or tearing force. Bearing stress is a load placed in one direction, such as the weight of a building bearing on the foundation.
What is hysteresis loop in stress and strain?
the leading or lagging between the stress and strain is called hysteresis loop
Relation between tensile stressbending moment and section of modulus?
The relation between bending moment and the second moment of area of the cross-section and the stress at a distance y from the neutral axis is stress=bending moment * y / moment of inertia of the beam cross-section
What is the internal bending moment formula used to calculate the bending stress in a beam?
The internal bending moment formula used to calculate bending stress in a beam is M I / c, where M is the bending moment, is the bending stress, I is the moment of inertia, and c is the distance from the neutral axis to the outermost fiber of the beam.
What is the difference between moment of area and moment of inertia, and how do they relate to each other in the context of structural analysis?
The moment of area measures the distribution of an object's area around an axis, while the moment of inertia measures an object's resistance to rotation around that axis. In structural analysis, moment of area helps determine the bending stress in a beam, while moment of inertia helps calculate the beam's deflection. They are related in that both are used to analyze the structural behavior of beams under different loading conditions.
What is the difference between Bending STRESS and Direct Stress?
direct stress is a stress normal to the cross section, A, and is the result of an axial load, P. direct stress = P/A Bending stress also acts normal to the cross section but varies from tension on one side and compression on the other. and is the result of a bending moment, M. bending stress = Mc/I where I is the area moment of inertia and c the distance from outer fiber to neutral axis
What is the relation between ultimate and allowable stress?
ultimate stress=Factor of safety*Allowable stress
While finding alternatives section modulus to be checked or moment of inertia to be checked?
If you are looking to find alternatives for a cross-section design, it is generally recommended to check both the section modulus and the moment of inertia. The section modulus helps determine the resistance of a beam to bending stress, while the moment of inertia indicates the distribution of an area about a neutral axis. Both parameters are crucial for ensuring the structural integrity and efficiency of the design.
Moment of inertia is a cross sectional property that gives the engineer an indication of the stiffness of a particular shape value can used to?
find the strength of the member subject to bending or shear. Moment of inertia is used to find radius of gyratia or flexural regidity so that member strength flexural stress is found
Are moment of resistance and section modulus the same?
Yes, it is.Moment of resistance, usually denoted as W is a term in structural engineering. It is found from the moment of inertia I and the distance from the outside of the object concerned to its major axis e. W = I/eIt is used in structural calculations since the stress can be written as stress=moment/WSection modulus (Rigidity) : The ratio of moment of Inertia of the section (I) to the distance from it neutral axis to the most remote fiber (c)I am not an engineer and I never studied any of this properly, but as far as I can see, it's two names for the same thing.I was able to calculate successfully the moment of resistance from the (moment of inertia) / (distance from the outside of the section (on the same x/y axis) to the center)which means I must be getting it right.
Why I-beam's are preferable over rectangular beam's?
You just take an example as rect section with A=17.6*10=176 mm2 and your I section too has same area of 176 mm2. Calculate moment of inertia of rectangular section I = bd3/12 = 1466.66 mm4 For I section, Width of both flange = 20 mm, thickness of both flange = 4 mm, web length=16 mm, web thickness = 4mm. This gives you the same area A=176 mm2 Now Calculate moment of inertia of I section I =8938 mm4 (Do it from any online converter or by calculations) Now compare both Moment of inertia, I section has approx six times better moment of inertia as compared to rectangular section. Put up this moment of inertia values in deflection and bending stress equations and try to compare both. This is because the material is put up in such a way to get maximum moment of inertia with minimum material and min weight. Finally this is the reason why I beams are preferable over rectangular beams Once Put up this moment of inertia values in deflection and bending stress equations and try to compare both. you will get it in sec
What are the relation between tensile stress and shear stress and bearing stress?
Tensile Stress is approximately two times the shear stress.Relationship bet n Tensile Stress and bearing stress varies from application to application.It Depends on Various Factors.
What is Moment of resistance?
Moment of resistance, ususally denoted as W is a term in structural engineering. It is found from the moment of inertia I and the distance from the outside of the object concerned to its major axis e. W = I/e It is used in structural calculations since the stress can be written as stress=moment/W It really works much better with graphical explanation which i unfortunately can't add in simple moment of resistance means couple produce when a beam subjected to bending under the action of loads.
What is moment resistance?
Moment of resistance, ususally denoted as W is a term in structural engineering. It is found from the moment of inertia I and the distance from the outside of the object concerned to its major axis e. W = I/e It is used in structural calculations since the stress can be written as stress=moment/W It really works much better with graphical explanation which i unfortunately can't add in simple moment of resistance means couple produce when a beam subjected to bending under the action of loads.
