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Types of stress in physics are... 1) Tension 2) Compression 3) Torsion 4) Bending 5) Shear
When you weld something, it'll cool unevenly. This will set up stress points in the matrix that can cause problems like warping and reduction of strength. Stress relieving seeks to correct this.
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
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
Assuming linear elastic bending with small deformations and planes perpendicular to the neutral axis remain plane after bending, then for a rectangular beam: Moment = (Yield Stress)*(Second Moment of Area)/(Distance of surface to Neutral Axis) For Ultimate Bending Moment, assume stress is uniform throughout the beam, and acting through half the distance from surface to neutral axis, then: Moment = Stress * (Area/2)*(h/4 + h/4) For a better visualization check out Popov's textbook, Engineering Mechanics of Solids, Chapter 6, Section 6.10
I need to calculate the stress resulting from a torsion moment on a hollow steel section as well as a flat plate.
Shear and torsion forces are a combination of bending stress. This stress characterizes the behavior of a structural object subjected to an external load, which is applied perpendicular to the axis of the object.
Under torsion only, the shear stress is minimum, in fact zero, at the center point ( where radius is zero)
Yes.Modulus of RuptureUltimate strength determined in a flexure or torsion test. In a flexure test, modulus of rupture in bending is the maximum fiber stress at failure. In a torsion test, modulus of rupture in torsion is the maximum shear stress in the extreme fiber of a circular member at failure. Alternate terms are flexural strength and torsional strength.
In Design Technology, a twisting is know as TORSION
A Stress fracture
Types of stress in physics are... 1) Tension 2) Compression 3) Torsion 4) Bending 5) Shear
When you weld something, it'll cool unevenly. This will set up stress points in the matrix that can cause problems like warping and reduction of strength. Stress relieving seeks to correct this.
It is torsion and tension while tightening, and pure tension when tightened
The torsional stress refers to the stress that arises from the deformation set up by a twisting moment or torque.
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
if you are in a stress moment, if you concentrate hard enough you start to forget what you were stressed about.