The Use of a Power Law Function for Fatigue Life Estimation for Block Loads

Ewelina Böhm; Marta Kurek; Tadeusz Łagoda; Karolina Łagoda

doi:10.4028/www.scientific.net/SSP.250.1

Paper Titles

The Use of a Power Law Function for Fatigue Life Estimation for Block Loads
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Fatigue Crack Growth in Specimens with Rectangular Section under Torsion and Bending with Torsion
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Simulation of Crack Growth in a Cell Containing an Inclusion Using Cohesive Elements
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Fracture Analysis of EN AW-6063 Aluminum Alloy Thin-Walled Welded Stairs
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Analysis of the State of Stress at the V-Hole Ended Notch for Mode II
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Investigations on Magnetoelectric Composites Based on Terfenol-D & PZT in an Alternating Magnetic Field Conditions
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Analysis of Ceramic Elements with Ring-Crack Defects in Lubricated Rolling Contact
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Mean Stress in Algorithms Estimating Fatigue Life of Selected Structural Materials
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Effect of Frictional-Mechanical Treatment of the Low Alloy Steels on Some Exploitation Properties in Sea Water Simulated Solution
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The Use of a Power Law Function for Fatigue Life Estimation for Block Loads

Abstract:

A new damage accumulation model based on a power law for fatigue life estimation is presented. The model has been created on the basis of functions of memory taken from psychology. The model derivation is presented as well as its basic properties. It takes into account the loading sequence. The experimental verification of the model is performed for experimental results taken from the literature for four material groups tested with block loading programs. The obtained calculation results are compared with results obtained with the use of Palmgren-Miner model. The model can be used for the determination of fatigue life, especially for block load fatigue tests.

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Periodical:

Solid State Phenomena (Volume 250)

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1-9

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https://doi.org/10.4028/www.scientific.net/SSP.250.1

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Online since:

April 2016

Authors:

Ewelina Böhm, Marta Kurek, Tadeusz Łagoda*, Karolina Łagoda

Keywords:

Block Loads, Fatigue Life, Power Law Function

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