Shape optimisation for stress reduction around single and interacting notches based on the fictitious stress method

Wilczynski, B.

doi:10.1016/s0955-7997(97)00015-5

Cited by 8 publications

(4 citation statements)

References 22 publications

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“…The original name of this BEM variant, the fictitious stress method (FSM), was replaced by Wen [59] as the fictitious load method (FLM). It has been documented in the paper of Wilczynski [60], that this method provides results in regions of stress concentration which are in a good agreement with the results obtained by the direct and other indirect variants of the boundary element techniques and other numerical methods. It should be mentioned that this method leads directly to the value of tangential stress, the maximum of which is needed in SWT fatigue criterion.…”

Section: Stress Analysissupporting

confidence: 67%

Optimal design of machine components using notch correction and plasticity models

Wilczynski

Mróz

2007

Computers & Structures

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Section: Stress Analysissupporting

confidence: 67%

Optimal design of machine components using notch correction and plasticity models

Wilczynski

Mróz

2007

Computers & Structures

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“…Many researchers research to obtain the form of the fillet, commencing with minimizing the fillet area to keep the stress concentration underneath the limit [12][13][14][15][16][17][18][19][20], culminating with minimized maximum stress at the shoulders [21][22][23][24][25]. Santos (2013) investigated the determination of the stress concentration factor on flat plates of structural steel.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Surface Finish and Fillet Design on Tie Rod Shaft Lifetime at Coal Mill Plant Operation

Alif Burhanuddin Yusuf Habibie,

Januartha,

Arifin

et al. 2023

(IJMEAS)

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The tie rod shaft is one of the most essential parts in the coal grinder machine at the coal mill plant to support the roller grinder axial movement. Since the tie rod shaft receives the cyclic load constantly, the inappropriate design can cause the lifetime of the shaft to be short. The broken incidents of the tie rod shaft at coal mill the coal mill plant of PT X takes effect on the Steam and Power Supply to the ammonia and Urea Plant. This Research aims to analyze the abnormality on the tie rod shaft, which is always broken on the fillet section. The Stress concentration factor, Maximum Stress, and Surface roughness on the fillet section of the shaft have an extraordinary effect on the Fatigue lifetime. With the special tool assistant, the conventional lathe machine can compete with the CNC machine Quality to make Fillet contour as well as polished treatment and precise as the tool assistant can make the constant rotational movement produced by the human hand. The result showed that the tie rod shaft with 0.33 μm surface roughness level and fillet dimension strictly at 5mm could extend the lifetime of the tie rod shaft beyond the target after installed on the plant

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“…Several methods were proposed to reduce stress concentration caused by geometric discontinuity. Wilczyński [3] formulated a shape optimization procedure to reduce the stress level around notches. Recently, Taylor [4] and co-workers also described two new methods which could reduce stress concentration effects greatly by making changes to the shapes of notches.…”

Section: Introductionmentioning

confidence: 99%

On Reduction of Stress Concentration around the Pin Hole in Turbine Discs

Shi

Wang

Yuan

et al. 2013

AMM

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The stress concentration phenomenon around holes in rotated components is discussed. Firstly, finite element analysis of a simplified model of turbine disc flange is carried out, and then a method is developed by designing an intended-cut notch on the model to reduce the stress around the pin hole. Furthermore, two characteristic parameters which determine the configuration of the notch, namely notch depth and arc length parameter, are investigated by changing the notch dimensions. The results show that this method can reduce the stress around the hole significantly, notch depth and arc length have an important impact on the stress concentration factor (SCF), the SCF decreases with the increase of notch depth, and increasing the arc length within a critical scope results in the decrease of the SCF.

show abstract

Shape optimisation for stress reduction around single and interacting notches based on the fictitious stress method

Cited by 8 publications

References 22 publications

Optimal design of machine components using notch correction and plasticity models

Optimal design of machine components using notch correction and plasticity models

The Effect of Surface Finish and Fillet Design on Tie Rod Shaft Lifetime at Coal Mill Plant Operation

On Reduction of Stress Concentration around the Pin Hole in Turbine Discs

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