Results 11 to 20 of about 18,643,584 (142)
Assessment of load history effects on ductile initiation fracture toughness by the Gurson-Tvergaard-Needleman model [PDF]
, 2009 Residual stresses may reduce the apparent ductile fracture toughness of structural steels. However, prior load excursions may alleviate this reduction. Effects of several load histories on ductile fracture initiation are investigated using finite element
Jivkov, A. P.; id_orcid +2 more
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AIP AdvancesThe presence of voids can compromise the strength and continuity of downstream products. The Gurson–Tvergaard–Needleman model was utilized to obtain the relevant parameters.
Shuiwen Zhu +3 more
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Communications, 2011 This paper deals with the numerical analysis of plastic deformation and damage development in S235JR steel in complex stress states. The material Gurson Tvergaard Needleman (GTN) model was applied. The analysis was performed for notched bars subjected to
Wiktor Wcislik
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Bursting Prediction of Hydroforming Aluminium Alloy Tube based on Gurson-Tvergaard-Needleman Damage Model [PDF]
, 2014 The Gurson-Tvergaard-Needleman model was employed to predict the bursting behaviour in the hydroforming of aluminium alloy tubes. The original void volume fraction, the critical void volume fraction, and the failure void volume fraction of this model ...
Yuan, Shijian +3 more
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Net section resistance of steel angles connected by one leg [PDF]
Archives of Civil Engineering, 2022 In civil engineering structures, steel angles are often used as tensioned elements, because of their ease of fabrication and assembly. For practical reasons, angles are usually connected only by one leg, using a single row of bolts, and rupture of ...
Edyta Bernatowska, Lucjan Ślęczka
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A New Model for Void Coalescence by Internal Necking [PDF]
, 2010 A micromechanical model for predicting the strain increment required to bring a damaged material element from the onset of void coalescence up to final fracture is developed based on simple kinematics arguments.
Onck, P. R. +8 more
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The numerical analysis of micro-damage evolution in damaged element with structural discontinuity
Budownictwo i Architektura, 2013 The numerical analysis of microdamage evolution in S235JR steel is presented in the paper. The simulation was performed basing on the Gurson-Tvergaard-Needleman material model which takes into consideration the influence of microdamage to the material ...
Paweł Kossakowski
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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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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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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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