Table of Contents
What does the term bauschinger effect mean?
The Bauschinger Effect is defined as a decrease in the yield strength of the material in compression as a result of prior deformation in tension.
What is Ludus effect?
In a sample of American college students (N = 305) the study found that sexual experience was related to the ludus (game-playing) subscale. As the tendency to endorse items of the ludus scale increases, the individual reported an ever larger number of sexual partners.
What is meant by strain hardening?
Work hardening, also known as strain hardening, is the strengthening of a metal or polymer by plastic deformation. This strengthening occurs because of dislocation movements and dislocation generation within the crystal structure of the material.
WHAT ARE BACK stresses?
Back stress is long-range stress caused by the pileup of geometrically necessary dislocations (GNDs). Back stress not only raises the yield strength but also significantly enhances strain hardening to increase the ductility.
What causes bauschinger effect?
The Bauschinger effect refers to a property of materials where the material’s stress/strain characteristics change as a result of the microscopic stress distribution of the material. For example, an increase in tensile yield strength occurs at the expense of compressive yield strength.
What is strain rate effect?
Strain rate effect is the basic property of solid materials while strain rate effect of nonuniform materials is more obvious than that of uniform materials. Concrete strength is highly sensitive to the process of loading.
Where is bauschinger effect relevant?
4. Straightening Process including the Bauschinger Effect
| Elastic modulus/MPa | |
|---|---|
| Poisson ratio | 0.3 |
| Yield limit/MPa | 400 |
How do you stop a Luders band?
In some aluminum alloys, type B Lüders can be eliminated by cold rolling the material. In Al-Mn-Mg alloys, a 20\% cold reduction entirely suppressed the formation of Lüders.
Is strain hardening good or bad?
Strain hardening (also called cold working) is an important strengthening process for aerospace alloys that involves plastically deforming the material during manufacturing to greatly increase the number of dislocations.
What is cyclic hardening?
In strain-controlled loading, cyclic hardening means increment of stress amplitude while cycling [6], [14]. Total strain amplitude is the summation of elastic strain and plastic strain amplitudes, shown in Eq. (4).
What is measured by yield strength?
The yield strength is often used to determine the maximum allowable load in a mechanical component, since it represents the upper limit to forces that can be applied without producing permanent deformation.
What is an example of the Bauschinger effect?
the Bauschinger effect. The Bauschinger effect refers to a property of materials where the material’s stress/strain characteristics change as a result of the microscopic stress distribution of the material. For example, an increase in tensile yield strength occurs at the expense of compressive yield strength.
What is the Bauer effect?
Bau·sching·er effect | ˈbȯ-(ˌ)shiŋ-ər-. : the phenomenon by which plastic deformation of a metal increases the yield strength in the direction of plastic flow and decreases the yield strength in the opposite direction.
Do high strength steels exhibit Bauschinger effect?
High strength steels exhibit a significant Bauschinger Effect. Thus the material near the inner bore does not behave elastically during unloading, but actually reverse yields in compression., which in turn greatly reduces the tangential stress near the surface on the outside of the vessel. Zhuo Zhuang,
Is Bauschinger effect safe to ignore in structural engineering?
In other cases, where there is in general no more than one stress reversal, the Bauschinger effect can safely be neglected. Structural members are likely to subjected to reversal of stresses. While the mild steel in compression behaves same as like in tension upto the yield point.