What methods are widely used in material mechanics to study the internal force and stress of components?

In order to study the internal force and stress of members, section method is widely used in material mechanics.

The section method is the basic method to find the internal force in the mechanics of materials, and it is also a common method to determine the internal force by knowing the external force of components. In order to study the internal force and stress of members, section method is widely used in material mechanics.

Mechanics of materials is to study the strain, stress, strength, stiffness and stability of materials under various external forces and the limits that lead to the failure of various materials. Generally speaking, it is a compulsory course for college students majoring in mechanical engineering, civil engineering and related majors. Learning material mechanics generally requires students to take advanced mathematics and theoretical mechanics first.