Results 21 to 30 of about 176 (139)
GAMM-Mitteilungen, Volume 44, Issue 1, March 2021., 2021 Abstract Currently, the growth of material data from experiments and simulations is expanding beyond processable amounts. This makes the development of new data‐driven methods for the discovery of patterns among multiple lengthscales and time‐scales and structure‐property relationships essential.
Anke Stoll, Peter Benner
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Fracture and Structural Integrity, 2020 Initiation and propagation of ductile fractures are major consideration during the design of high-pressure pipelines. Consequences of a pipeline failure can be catastrophic thus structural integrity must be ensured over several decades.
Benot Paermentier +2 more
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Analysis of the Void Volume Fraction for S235JR Steel at Failure for Low Initial Stress Triaxiality
Archives of Civil Engineering, 2018 This paper deals with problems of failure mechanisms of S235JR structural steel. One of the fundamental parameters of the Gurson-Tvergaard-Needleman damage mechanics-based material model is considered in order to describe the behaviour of the material at
Kossakowski P. G.
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An Analysis of the Tvergaard Parameters at Low Initial Stress Triaxiality for S235JR Steel
Polish Maritime Research, 2015 This paper discusses the influence of the Tvergaard parameters, qi, which are basic constants of the Gurson-Tvergaard-Needleman (GTN) material model, on the numerically simulated load-carrying capacity of tensile elements made of S235JR steel.
G. Kossakowski Paweł
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Microvoids Evolution in S235JR Steel Subjected to Multi-Axial Stress State
Engineering Transactions, 2014 The article presents the results of the experimental and numerical analysis of microvoids evolution in elements made of S235JR steel under multi-axial stress state.
Paweł Grzegorz KOSSAKOWSKI +1 more
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Archives of Metallurgy and Materials, 2017 This paper is concerned with the critical void volume fraction fF representing the size of microdefects in a material at the time of failure. The parameter is one of the constants of the Gurson-Tvergaard-Needleman (GTN) material model that need to be ...
Kossakowski P. G.
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Fracture and Structural Integrity, 2023 This paper is devoted to the numerical and experimental study of ductile fracture in bulk metal forming of the 2017A-T4 aluminum alloy. From an experimental standpoint, the ductile fracture of the2017A-T4aluminum alloy is investigated under compressive ...
N. Ben Chabane +2 more
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Ductile failure analysis of high strength steel in hot forming based on micromechanical damage model
MATEC Web of Conferences, 2016 The damage evolution of high strength steel at elevated temperature is investigated by using the Gurson-Tvergaard-Needleman (GTN) model. A hybrid method integrated thermal tensile test and numerical technique is employed to identify the damage parameters.
Ying Liang +3 more
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Influence of Initial Porosity on Strength Properties of S235JR Steel at Low Stress Triaxiality
Archives of Civil Engineering, 2012 The paper discusses the influence of the initial parameters on the strength parameters of S235JR steel at low stress triaxiality. The analysis was performed using the Gurson-Tvergaard-Needleman (GTN) material model, which takes into consideration the ...
Kossakowski P.G.
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Numerical Evaluation of Surface Roughness Influences on Cold Formability of Dual‐Phase Steel
steel research international, Volume 91, Issue 11, November 2020., 2020 Experiments show that surface roughness condition plays a significant role in cold‐formability of dual‐phase (DP) steel sheet. A multiscale strategy is proposed to include surface roughness information into a damage mechanics model. The force–displacement from three‐point bending tests of the rough surface sheet and smooth surface sheet agree well on ...
Peerapon Wechsuwanmanee +3 more
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