693.932 PEOPLE
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| Naji, M. |
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Stoschka, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Effect of Surface Finishing State on Fatigue Strength of Cast Aluminium and Steel Alloyscitations
- 2023Study of Local Fatigue Methods (TCD, N-SIF, and ESED) on Notches and Defects Related to Numerical Efficiencycitations
- 2023Energy-Based Fatigue Assessment of Defect-Afflicted Cast Steel Components by Means of a Linear-Elastic Approachcitations
- 2023A Numerically Efficient Method to Assess the Elastic–Plastic Strain Energy Density of Notched and Imperfective Cast Steel Componentscitations
- 2022Optimization of disc geometry and hardness distribution for better transferability of fatigue life prediction from disc to FZG testscitations
- 2022Fatigue strength study based on geometric shape of bulk defects in cast steelcitations
- 2022A Probabilistic Fatigue Strength Assessment in AlSi-Cast Material by a Layer-Based Approachcitations
- 2020Areal fatigue strength assessment of cast aluminium surface layerscitations
- 2020Validation Study on the Statistical Size Effect in Cast Aluminiumcitations
- 2019Notch Stress Intensity Factor (NSIF)-Based Fatigue Design to Assess Cast Steel Porosity and Related Artificially Generated Imperfectionscitations
- 2019Evaluation of surface roughness parameters and their impact on fatigue strength of Al-Si cast materialcitations
- 2019On the Statistical Size Effect of Cast Aluminiumcitations
- 2019Numerical crack growth study on porosity afflicted cast steel specimenscitations
- 2019Short and long crack growth of aluminium cast alloyscitations
- 2018Application of a area -Approach for Fatigue Assessment of Cast Aluminum Alloys at Elevated Temperaturecitations
- 2018Lifetime assessment of cast aluminium components based on CT-evaluated microstructural defects
- 2018Fatigue strength characterization of Al-Si cast material incorporating statistical size effectcitations
- 2018Surface topography effects on the fatigue strength of cast aluminum alloy AlSi8Cu3citations
- 2018Modification of a Defect-Based Fatigue Assessment Model for Al-Si-Cu Cast Alloyscitations
- 2017Fatigue assessment of welded and high frequency mechanical impact (HFMI) treated joints by master notch stress approachcitations
- 2017Simulation of lamellar cast iron components under TMF-loadscitations
- 2017Microporosity and statistical size effect on the fatigue strength of cast aluminium alloys EN AC-45500 and 46200citations
- 2016Application studies for fatigue strength improvement of welded structures by high-frequency mechanical impact (HFMI) treatmentcitations
- 2016Effect of weld defects on the fatigue strength of ultra high-strength steelscitations
- 2015Fatigue Strength of HFMI-treated and Stress-relief Annealed High-strength Steel Weld Jointscitations
- 2014Fatigue enhancement of thin-walled, high-strength steel joints by high-frequency mechanical impact treatmentcitations
- 2009Influence of welding process parameters on fatigue life by local sub-modelling
- 2009Introduction to an approach based on the (α+β) microstructure of elements of alloy Ti-6Al-4Vcitations
- 2007Fatigue analysis of forged aerospace components based on micro structural parameters
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article
Simulation of lamellar cast iron components under TMF-loads
Abstract
The mechanical modelling of components made of grey cast iron is a non-trivial task, especially when subjected to non-isothermal thermo-mechanical loading conditions. Hence, elasto-plastic deformations as well as time-dependent creep processes have to be taken into account in the simulation in order to accurately model the mechanical stress-strain relationship. Consequently, a methodology to simulate the complex deformation behaviour based on a damage modified viscoplastic constitutive model is introduced. This methodology also contains a semi-automated parameter optimization strategy featuring a genetic algorithm. The correspondingly conducted cyclic mechanical simulation runs match well with the experimental data. Only marginal deviations in the evaluated stress-strain hysteresis can be found at quite high temperatures.