The Structural Stress Analysis Focused On The Shaft Keyway Fea V Mises Stock Illustrati 2400404005
The finite element method (fem) is utilised in evaluating stresses in keyways of shafts loaded in torsion It uses finite element analysis to quantify the stress distribution. Fem has become ubiquitous in the analysis.
Fea Von Mises Stress Shaft Keyway Stock Illustration 2400404005
Stress and strength the quality of a mechanical system depends on the relationship of the maximum stress to the component strength 1 This paper investigates the failure root cause by visual examination, optical and scanning electron microscope analysis, chemical analysis of the material and mechanical tests Stress is a state property of a body which is a function of
Load, geometry, temperature and manufacturing process
Stress is denoted with greek letters and has unit [n/m2] On the basis of analysis we conclude that the shaft made by stainless steel having keyway with circular fillet will undergo minimum magnitude of the maximum shear stress in comparison to other material and shapes used for analysis Keyways, shaft, stress concentration, shear stress, torque, fillet, chamfer, analysis, photoelastic method. K s = k a k d / k w where
Τ = shear stress s s = yield stress of key t = torque f = force d = shaft diameter w = width l = length k s = service factor k a = application factor k d = keyway application factor k f = fatigue life factor k w = wear life factor f s = design factor of safety n = number of keys (same size) keyway application design. Many shaft and hub designs include arrangements for transmitting torque from one element to another along the shaft Keys and keyways are common torque transfer elements This item discusses the stresses that are present in keyways and suggests ways to optim ise the shape of the keyway to improve the fatigue life of the shaft
Since the review of stress concentration data in keyways by.
The present paper shows how numerical finite element (fe) analysis can improve the prediction of stress concentration in the keyway Using shape optimization and the simple super elliptical shape, it is shown that the fatigue life of a keyway can be greatly improved with up to a 50 per cent reduction in the maximum stress level. Some typical stress concentration factors iteration in the design of a shaft. The ratio of measured stress to stress in the same fibre in a shaft without keyway is the same for bending and tension
Stress indices for combined bending and torsion have been calculated for one. Esdu 15004 considers the effect of key and keyway design on thestresses in a keyed shaft loaded in torsion, bending or under combined torsion and bending Video provides an overview of boundary conditions, mesh inspection, and results evaluation for the shaft with keyway example. The resulting high local stress caused multiple fatigue crack initiation points along the shaft perimeter, leading to progressive crack growth and eventual failure
Finite element analysis characterized the two stress concentration factors, revealing that the keyway had the most significant impact.
Finite element analysis (fea) using ansys 11.0 compares theoretical and simulated stress results for keyways Keyway shape optimization with chamfers significantly enhances fatigue life compared to rectangular designs. Shaft key selection and keyway design should consider key types, correct fit, key material, shaft material, load, fatigue & safety factors To secure the hub and shaft and stop relative movement between a power transmitting shaft and an attached component, a key and the keyway combine to form a keyed joint.
Download scientific diagram | axial stress analysis figure 8 Bending stress analysis from publication Investigation of stress concentration factor for keyway on shaft under different loading. Calculate shaft key size, torque, stress, and safety instantly with our free online shaft key calculator
Fast, accurate, and easy to use.
Shaft keyway shear and yield strength requirement Design tip for shaft and keyways This shafting is true and straight and needs no turning, but if keyways are cut in the shaft, it must usually be straightened afterwards, as the cutting of the keyways relieves the tension on the surface of the shaft. In a keyway design there is several positions in which the maximum stress might be found, e.g
To improve the design we must reduce the maximum stress wherever it is found Shaft design procedure because of the simultaneous occurrence of torsional shear and normal stresses due to bending, the stress analysis of a shaft virtually always involves the use of a combined stress approach The recommended approach for shaft design and analysis is the distortion energy theory of failure. Because of simultaneous occurrence of torsional shear stresses and normal stresses due to bending, stress analysis of shaft involves use of combined stress approach.
Using our advanced phased array ultrasonic inspection provides detection of generator shaft keyway cracking from the outside surface of the generator shaft — without the need for coupling removal.
It is used to transmit power through rotation It provides an axis of rotation for a variety of mechanical components. The case study is based on the analysis of failure of conveyor drive pulley shafts
