Shear force and bending moment

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Shear force and bending moment detailed explanation 


Shear force and bending moment are two important concepts in mechanics that describe the internal forces acting on a structure.


Shear force is the force that acts perpendicular to the long axis of a structural element and tends to cause the element to slide or shear along its cross section. It is often caused by external loads such as wind or earthquakes, and can be determined by summing up the forces acting on a section of the structure. The location of the maximum shear force can be found by taking the derivative of the shear force equation with respect to the position along the structure.


Bending moment is the force that causes a structure to bend. It is caused by the weight of the structure itself, as well as external loads such as wind or earthquakes. The bending moment is determined by summing up the moments of all the forces acting on a section of the structure. The location of the maximum bending moment can be found by taking the derivative of the bending moment equation with respect to the position along the structure.


It is important to note that both of these concepts are dependent on the loading and geometry of the structure, and can vary along the length of the structure. Engineers use this information to design safe and efficient structures that can withstand the forces acting on them.

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