What kind of stress is the inner and outer wall of the tube expanded, tensile stress or compressive

The inner wall temperature of the pipe is high, the outer wall temperature is low, and the expansion of the inner wall is limited by the outer wall, so the inner wall is subjected to compressive stress and the outer wall is subjected to tensile stress. A cylinder.

If there is compression at both ends, then the stress along its axis is the compressive stress.

It is not only the compressive stress caused by the force on the object, but also any compression deformation, including after the expansion of the object.

In addition, if a beam is bent, whether it is bent due to force or uneven heating of the beam, etc., the inner side of the bending will naturally be subjected to compressive stress, and the outer side will be subjected to tensile stress.

The inner surface of the tube is under pressure (external force).

The stress inside the tube section is the expression of the material's resistance to external forces. The cross-section forces are not the same in all directions.

For example, the circumferential section of the pipe and the force along the pipe section are twice as different (note that the condition is a thin-walled tube) There is a section in the elementary material mechanics (the undergraduate is elementary material mechanics, referred to as material mechanics) There is a section dedicated to thin-walled tubes, and there are assumptions in front, think about what would happen if it wasn't a thin-walled tube?

The concepts and assumptions of material mechanics are the most important thing to learn.

What is Stress? Not according to the textbook on the mechanics of materials, I say that the force of the material in response to the external force is called stress. Academically, the material is resistant to damage by external forces with inherent bonding force.

In fact, the first floor is right about the front half, and the back half is the external force, which is not the same thing as stress.

Of course, the tension on the inside and outside of the pipe wall section is not the same. The outer side is large, and the inside side is small.

I don't know if you get it.

The expanded inner wall of the tube is subjected to compressive stress radially and tensile stress tangentially. The outer wall of the pipe is mainly subjected to the tangential tensile stress and the radial compressive stress transmitted from the inner wall.

1. Under normal circumstances, tensile stress and compressive stress exist at the same time when the material is bent, if the two ends are bent downward, the following is the compressive stress, the bottom.

Tensile Stress vs Compressive Stress: The material is subjected to compression at both ends, and the stress experienced by the material is compressive stress. Because, even if the pressure is pressed, the pressed object is divided into small pieces, and there is resistance between the small pieces.

The positive and negative signs of stress stipulate: positive stress is positive tensile stress and negative compressive stress This tensile pressure is a bit incomprehensible. It's that and the stress is clockwise:

For example, if you are standing in front of a big tree, and if you go up to the tree, it is equivalent to the stress that you exert on the tree by your weight on the tree.

What are the conditions for applying the tensile compressive normal stress formula =f a? Is the stress less than the proportional limit, or is the stress less than the elastic limit? Why? ：

is less than the proportional limit, The premise of the tensile and compressive normal stress study is that the tensile and compressive rod is in a steady state, and for the slender compression rod, in addition to considering its strength, it is also necessary to use "Euler".

Why is pure shear a tension-compression two-way stress state? : In the pure shear state, considering the stress state of a point, the normal stress is 0, and only the shear stress. If it is rotated 45°, it becomes a principal stress state, in one direction.

What is stress? : In addition, if a beam is bent, whether it is bent due to force or uneven heating of the beam, etc., the inner side of the bending will naturally be subjected to compressive stress, and the outer side will be subjected to tension.

The figure shows a simple beam, try to find the magnitude of the normal stress at the four points a, b, c, d on the cross section c, and explain whether it is tensile stress or compressive stress. : Calculate the normal stress of a cross-sectionStep 1 first analyzes the whole beam and calculates the bending moment at the cross-section 2 according to the normal stress = bending moment coordinate moment of inertia

Difference Between Compressive Stress and Tensile Stress: Compressive Stress When a cylinder is compressed at both ends, then the stress along its axis is the compressive stress. Compressive stress. 2011-06-18 ..

Mechanical problems, stress: Bending deformation: bending normal stress = m w, the upper surface tensile stress is maximum at the fixed end section, the compressive stress is maximum on the lower surface, m is solid.

For the inside of the material, the inner and outer walls are subjected to tensile stress, and for the material itself, the inner wall is also subject to the fluid pressure in the tube.

1. Meridional stress is generated in the direction of the warp and hoop stress is generated in the direction of the weft;

2. The meridional stress acts on the cone section formed by the cone surface and the shell cut, and the congqing circumferential stress acts on the longitudinal section of the bright side of the meridian plane and the shell cut off by the Zheng Oak;

3. Due to the axial symmetry, the meridional stress and hoop stress at each point on the same latitude are equal.