Importance of stresses in shaft, Mechanical Engineering

Importance of stresses in shaft:

What is  importance of stresses in shaft ?
Sol.:
In shaft the following significant stresses occur.

1. A maximum shear stress occurs on cross section of shaft at its outermost surface.

2. The maximum longitudinal shear stress occurs at surface of shaft on longitudinal planes passing through longitudinal axis of shaft.

3. The maximum tensile stress (that is, major principal stress) occurs at the planes 45º to maximum shearing stress planes at the surface of shaft. This stress is equal to maximum shear stress on cross section of shaft.

4. The maximum compressive stress (that is minor principal stress) occurs on the planes at 45º to longitudinal and cross sectional planes at the surface of shaft. This stress is equal to maximum shear stress on cross section.

5. These stresses are significant because they govern the failure of shaft. These stresses develop simultaneously and hence they should be considered simultaneously for design purposes.

6. For most of the engineering materials, fortunately shear strength is smallest as compared to the tensile and compressive stresses and in such cases only maximum shear stress on the cross section of shaft is the important stress for design.

7. For materials for which the tensile and compressive strengths are lower than shear strength, shaft design should be carried for lowest strength.

Posted Date: 10/23/2012 2:37:47 AM | Location : United States







Related Discussions:- Importance of stresses in shaft, Assignment Help, Ask Question on Importance of stresses in shaft, Get Answer, Expert's Help, Importance of stresses in shaft Discussions

Write discussion on Importance of stresses in shaft
Your posts are moderated
Related Questions
Q. Define Heat for electrical resistance welding? The heat, H for electrical resistance welding is generated by passing a large electrical current ( of the order of 3000 to 100

DEFINATION

I am attending Thermodynamics class at the university. The professor asked me to write a research on Renewable Energy: Solar Power. The report should be of 10 pages and at least 10

Determine net work done: 5 m 3   of air at 2bar, 27 0 C is compressed to 6bar pressure following PV 1. 3   = constant. It is expanded subsequently adiabaticall

Q. What is Metal Jacketing? a) Metal jacketing shall be Alcan T-3000-H14 series, T-1100-H14 or approved equivalent stucco embossed aluminum with a factory applied moisture barr

Differentiate between perfect, deficient and redundant trusses

Constructive Solid Geometry (Csg or C-Rep) A CSG model is based on the topological notion that a physical project object can be divided into a set of primitives that can be com

Characteristics  Of  Computer  Controlled Scheduling (Ccs) To control the manufacturing system in an effectual way, the system is normally composed in a task-based hierarchy. T

(a) Evaluate the buckling load of column with one end fixed other free of 8m length by using Euler's formula. Given : I min = 1390m 4 E = 2 X 10 5 N/mm 2 (b) Derive a

Deformation Processes In these processes, the material is plastically deformed (hot or cold) under the action of an external force, to produce the required shape. No material i