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What is the law of stress (strain) distribution in pure bending beams
The normal stress of the pure bending beam is linearly distributed along the beam height, with the maximum at the top and bottom. If the two ends bend downward, the stress distribution of the middle section is as follows: the top is the maximum tensile stress, the bottom is the maximum compressive stress, and the neutral layer is 0 (note that the neutral layer is not necessarily in the "middle", its position is related to the tensile strength and compressive strength of the material. When both ends are equal, the neutral layer is in the "middle"), There is no shear stress
What are plane bending and pure bending? How does bending normal stress distribute in cross section?
Plane bending and pure bending
For example: 1. Insert one end of a board horizontally into the wall seam, and add a vertical force upward or downward at the other end, then the force on the board is plane bending and pure bending; 2. If one end of the board is vertically inserted into the ground structure, then add a downward force and side bending force at the other end of the board, The stress distribution on the cross section: the stress direction is perpendicular to the bending plane, the maximum compressive stress and maximum tensile stress are at the upper and lower edges of the bending plane, and other points of the cross section are distributed according to triangles
As shown in the figure, the wooden truss is subjected to horizontal force F, f = 80KN, and the allowable tensile stress and compressive stress are [σ] = 8Mpa respectively,
CD rod: 20231 (square mm) AB rod: 17617 (square mm) above are calculated data, and the safety factor is 1.0
How to view the stress-strain curve of ANSYS model after stress
For example, what I want to know about a certain point is the curve graph where the stress represents the ordinate and the strain represents the abscissa,
I think you're talking about the distribution of stress along the coordinates, right?
After entering the post-processing program, the mapping path is established and the stress data is mapped to the path
As for the "stress-strain curve", strictly speaking, it is the constitutive relation of the material, not calculated by ANSYS, but measured by the material mechanical property testing machine
What is the meaning of maximum principal stress direction NWW?
What does NWW mean?
It's not NWW! NW is northwest, W is West. NWW is northwest by West
16 wind directions (n, NNE, NE, nee, e, see, Se, SSE, s, SSW, SW, SWW, W, NWW, NW, NNW
How to use ANSYS to simulate the impact load: when the tool contacts the workpiece, the instantaneous impact force is generated, and the magnitude is known. How to simulate the stress of the workpiece in time
This doesn't need to be simulated over time
You can load a time history force
In / post26
Transient analysis is recommended to find a few books to simulate
If is the simulation tool cutting metal, need to use the high-level version of ANSYS, there is a new
Material, can simulate metal cutting movement
The specific heat capacity formula C = q / (m · Δ T),
Q heat
C specific heat
M mass
T0 initial temperature
Temperature at the end of T
Q=cm(t-t0)
In the physical formula q = QM, what does Q stand for?
This is the physics formula of junior high school, calculating the heat released by the complete combustion of fuel
Q is the heat, M is the mass, q is the calorific value of the fuel, in J / kg or J / m3
Is the heat formula q = MQ the same as the heat capacity formula q = CMT? What does it mean
Both formulas are for heat, but the range of use is different
The first is used in the heat release of fuel. Q is the calorific value, which refers to the heat released by the complete combustion of 1 kg fuel. M is the mass
The second formula is to find out how much heat is absorbed or released. Where C is the specific heat capacity, M is the mass, and t is actually △ T, which refers to the change of temperature. For example, when the hot water is reduced from 100 ℃ to 20 ℃, the △ t is 80 ℃
Sometimes Q can be equal. For example, if 100 kg of coal is burned completely, how many degrees can 200 kg of water with a temperature of 10 ℃ rise? In this place, Q can be equal. These two formulas are used to find out
The formula of q = CMT
What is the meaning of q = CMT formula? Who can tell
Q = cm △ T, q is the heat absorbed or released, C is the specific heat of the material, M is the mass of the object, and △ t is the change of temperature
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