Search Results - "Langer, Kristina"
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Simulation-based optimization of laser shock peening process for improved bending fatigue life of Ti–6Al–2Sn–4Zr–2Mo alloy
Published in Surface & coatings technology (01-10-2013)“…Laser shock peening (LSP) induced residual stresses significantly affect the high cycle fatigue behavior of certain metals and alloys. Residual stress…”
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An Active Learning Methodology for Efficient Estimation of Expensive Noisy Black-Box Functions Using Gaussian Process Regression
Published in IEEE access (2020)“…Estimation of black-box functions often requires evaluating an extensive number of expensive noisy points. Learning algorithms can actively compare the…”
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3
Prediction and characterization of residual stresses from laser shock peening
Published in International journal of fatigue (01-03-2012)“…► Laser shock processing (LSP) produces beneficial, but highly variable, residual stress fields. ► X-ray diffraction measurements of LSP residual stresses…”
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4
Machine Learning-Based Prediction and Optimisation System for Laser Shock Peening
Published in Applied sciences (01-04-2021)“…Laser shock peening (LSP) as a surface treatment technique can improve the fatigue life and corrosion resistance of metallic materials by introducing…”
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Corrections to "An Active Learning Methodology for Efficient Estimation of Expensive Noisy Black-Box Functions Using Gaussian Process Regression"
Published in IEEE access (2020)“…In the above article <xref ref-type="bibr" rid="ref1">[1] , errors related to symbols, equation numbers, and demonstration of Algorithm 2 were spotted. The…”
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Finite Element Analysis of Laser Peening of Thin Aluminum Structures
Published in Metals (Basel ) (01-01-2020)“…Laser shock peening has become a commonly applied industrial surface treatment, particularly for high-strength steel and titanium components. Effective…”
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A finite element study of thermal relaxation of residual stress in laser shock peened IN718 superalloy
Published in International journal of impact engineering (01-07-2011)“…The residual stresses in laser shock peened (LSP) Inconel 718 Ni-base superalloy and their thermal relaxation behavior were investigated based on…”
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Simulation of residual stress induced by a laser peening process through inverse optimization of material models
Published in Journal of materials processing technology (01-11-2010)“…Laser peening (LP) is a surface enhancement technique that induces compressive residual stresses in the surface regions of metallic components to increase…”
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High Strain‐Rate Material Model Validation for Laser Peening Simulation
Published in Journal of engineering (Stevenage, England) (01-05-2015)“…Finite element modeling can be a powerful tool for predicting residual stresses induced by laser peening; however the sign and magnitude of the stress…”
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A sequential weighted Laplacian‐regularized optimal design for response surface modeling of expensive functions with outliers: An application in linear elastic fracture mechanics
Published in Quality and reliability engineering international (01-10-2019)“…There are several sequential and adaptive strategies designed to reduce the number of experiments in response surface methodology (RSM). However, most of the…”
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Thermal relaxation of residual stress in laser shock peened Ti–6Al–4V alloy
Published in Surface & coatings technology (25-06-2012)“…Laser shock peening (LSP) induced residual stresses in Ti–6Al–4V, and their thermal relaxation due to short-term exposure at elevated temperatures are…”
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Experimental and Finite Element Simulation Study of Thermal Relaxation of Residual Stresses in Laser Shock Peened IN718 SPF Superalloy
Published in Experimental mechanics (01-11-2014)“…An integrated experimental and modeling/simulation approach was developed to investigate and secure a quantified knowledge of the impact of high temperature…”
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Experimental validation of simulated fatigue life estimates in laser-peened aluminum
Published in International journal of structural integrity (01-01-2011)“…Purpose - The purpose of this paper is to develop and implement a structural fatigue life estimation framework that includes laser-peened (LP) residual…”
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14
Fatigue Response of Aluminum Aircraft Structure under Engineered Residual Stress Processing
Published in Journal of ASTM International (2008)“…Advanced surface treatment methods for imparting beneficial residual compressive stresses into fatigue-prone metallic components such as laser shock processing…”
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Multiscale dynamics in brittle fracture
Published 01-01-1998“…High-speed dynamic crack growth in brittle materials is an inherently unstable process, as evidenced by experimental observations concerning crack speed…”
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