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according to bending stress because shear stress at neutral is 0 that is why shear force is maximum
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What is the practical application of shear center?
The way I understand it is that the shear center is the point of a cross-section, where loads can be applied without causing torsion over the longitudinal axis (normal to the cross-sectional plane).
How does Tensile strength differ from Shear strength?
Shear strength measures the ability of a fastener to withstand a load at right angles to the axis of the fixing connection . Tensile strength measures the ability of a fastener to withstand a force along its axis
If you are a geotechnical engineer in what situations would you specify shear box testing as an aid to geotechnical design?
As a geotechnical engineer, shear box testing can be specified as an aid to geotechnical design in several situations, particularly when dealing with cohesive soils or materials with shear strength considerations. Here are some scenarios where shear box testing may be beneficial: Determination of Shear Strength Parameters: Shear box testing is commonly used to determine the shear strength parameters of soils, such as the cohesion (c) and angle of internal friction (φ). By applying controlled shear stresses to soil samples in a shear box apparatus, engineers can measure the shear resistance and deformation characteristics of the soil under various loading conditions. Stability Analysis of Slopes and Embankments: Shear box testing can provide valuable data for assessing the stability of slopes, embankments, and other geotechnical structures. By analyzing the shear strength parameters obtained from shear box tests, engineers can evaluate the potential for slope failure, assess factors of safety, and design appropriate reinforcement measures. Evaluation of Soil Stabilization Techniques: Shear box testing can be used to evaluate the effectiveness of soil stabilization techniques, such as the addition of stabilizing agents or geosynthetic reinforcements. By conducting shear box tests on treated soil samples, engineers can assess the changes in shear strength and deformation behavior resulting from the stabilization measures. Pavement Design and Evaluation: Shear box testing can be useful in pavement design and evaluation, particularly for assessing the shear strength and deformation characteristics of subgrade soils. It can help engineers determine the appropriate design parameters for flexible or rigid pavements and evaluate the potential for shear failure or excessive deformation under traffic loads. Analysis of Soil-Structure Interaction: Shear box testing can aid in the analysis of soil-structure interaction problems, such as the behavior of foundations or retaining walls. By understanding the shear strength properties of the surrounding soil, engineers can better assess the stability and load-bearing capacity of these structures. It's important to note that shear box testing is just one of the tools available to geotechnical engineers, and its applicability depends on the specific project requirements, soil characteristics, and design considerations. The decision to specify shear box testing should be based on a comprehensive understanding of the project needs and consultation with other relevant geotechnical testing methods and analysis techniques.
Assumptions of ultimate load method?
1. Plane sections normal to axis remain plane after bending. This implies that strain is proportional to the distance from neutral axis. 2. Maximum strain in concrete of compression zone at failure is 0.0035 in bending 3. Tensile strength of concrete is ignored. 4. The stress-strain curve for the concrete in compression may be assumed to be rectangle, trapezium, parabola or any other shape which results in prediction of strength in substantial agreement with test results.
What is the plastic section modulus of steel section?
section modulus of any section is the ratio of the moment of inertia to the distance of extreem fibre from the neutral axis. plastic section modulus is the section modulus when the cross section is subjected to loading such that the whole section is under yield load. numerically it is equal to the pdoduct of the half the cross section area and the distance of center of gravity of tension and compression area from neutral axis
What kind of stresses are produced in a beam during transverse vibration?
If you load it normal to the beam axis you get bending stresses ( tension and compression) and shear stresses. If you load it along the axis you get axial stress ( tension or compression)
How do you find ultimate bending moment of steel beams?
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
What is the formula for shear and stress?
Just like axial stress, shear stress is force divided by area. The area is the surface the force acts over. For example, imagine two wood blocks that are nailed together. If you apply a force to the top block orthogonal to the longitudinal axis of the nail and the same force in the opposite direction to the bottom block, the shear stress (𝝉) in the nail is 𝝉 = F/A or F/(πr2) where r is the radius of the nail.
What is mohr's circle?
I am not sure if the term is used in cars and vehicles, but in the mechanics of materials, Mohr's circle is a graphical approach for finding solutions of stresses (or strains) of an element when the coordinate axes are rotated by a certain angle. In other words when you want to find the stresses (or strains) on a plane that is inclined to a certain angle from the plane of known stresses. When the technique is used for stresses, you draw a Mohr's circle of stresses and if it is for strains, you get the Mohr's circle of strains. When you work out the algebraic equations that transform known stresses (or strains) at a point to stresses (or strains) in an inclined plane, they result into an equation of a circle on a coordinate system whose horizontal axis is formed by the normal stress (or strain) and the vertical axis is formed by the shear stress (or strain). It is called the Mohr's circle since the technique was first developed by a German engineer called Otto Mohr.
How do you calculate neutral axis of a wooden beam?
In order to compute the neutral axis of a beam, we need its dimension and shape.
Which neutral country was surrounded by axis conquest and axis countries?
Switzerland
When a minimum is reflected over the x-axis it becomes?
A maximum!A maximum!A maximum!A maximum!
What is neutral axis of a beam?
The Neutral Axis of a concrete beam is that axis where it is neither in tension nor compression. The transition of tensile to compressive forces set up due to bending occurs on the neutral axis. Its position in a beam depends on material properties of the concrete and reinforcing steel.
Was Mongolia allies or axis?
No. It was actually a neutral country.It actually remained neutral.
How to calculate Q first moment of inertia above and below the neutral axis?
-find the area(A) of the shape above the neutral axis (or above a particular point if given) - locate the centroid (y')of the shape relative to the neutral axis(or above point) using y' = ∑AiYi / ∑Ai - first moment of area = A*y' (or y' + distance of given point from neutral axis)
Do you find the maximum value on the x or y-axis?
On the y-axis, normally.
Shear and torsion forces are a combination of what?
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.
