Results 31 to 40 of about 1,171 (167)
Failure and strain gradient analyses in incremental forming using GTN model
International Journal of Lightweight Materials and Manufacture, 2019 Single point incremental forming (SPIF) process is gaining popularity for rapid manufacturing of complex 3D shapes. The present study is aimed at numerically predicting the failure using the Gurson-Tvergaard-Needleman (GTN) model and further clarifying ...
Muhammad Ilyas +2 more
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A Review of Damage, Void Evolution, and Fatigue Life Prediction Models
Metals, 2021 Degradation, damage evolution, and fatigue models in the literature for various engineering materials, mostly metals and composites, are reviewed. For empirical models established under the framework of Newtonian mechanics, Gurson–Tvergaard–Needleman ...
Hsiao Wei Lee, Cemal Basaran
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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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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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Parameters Determination of GTN Model and Damage Analysis of Aluminum Alloy 6016 Sheet Metal [PDF]
Advances in Physics Research, 2014 Taking the material of AA6016 (Aluminum Alloy 6016) which is widely used in automobiles as the object of this study, the mechanical properties based on GTN (Gurson-Tvergaard-Needleman) model had been investigated. The parameters of the GTN model which were used for simulation were identified by uni-axial tensile test, parameter fitting and the inverse ...
Tai-Song Cui +7 more
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Forming limit diagram prediction of 6061 aluminum by GTN damage model [PDF]
Mechanics & Industry, 2018 Forming limit diagram (FLD) is one of the formability criteria which is a plot of major strain versus minor strain. In the present study, Gurson-Tvergaard-Needleman (GTN) model is used for FLD prediction of aluminum alloy 6061. Whereas correct selection of GTN parameters’ is effective in the accuracy of this model, anti-inference method and numerical ...
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Construction of whole stress-strain curve by small punch test and inverse finite element
Results in Physics, 2018 Small punch test is applied to estimate mechanical properties and damage evolution by a miniature specimen. Combining small punch test and inverse finite element, the elastoplastic parameters in Hollomon model and damage parameters in Gurson-Tvergaard ...
Kaishang Li, Jian Peng, Changyu Zhou
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Review on the damage behavior of metal laminated composite
Materials Research Express, 2020 Metal laminated composite (MLC) have attracted widespread attention for their potential in achieving excellent properties. However, damage and failure are more likely to occur during the plastic deformation due to the existence of the interface region ...
Tao Huang +3 more
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Impact of Heated Versus Unheated Cooking Oil on Postprandial Vascular Function and Metabolism
Lipids, EarlyView.ABSTRACT The impact of repeated heating of seed‐based culinary oils on cardiometabolic health has not been well established. Heating oils to high temperatures (> 150°C) causes lipid peroxidation, thus generating potentially harmful compounds that may impair vascular function. This randomized, single‐blind, crossover study investigated the acute effects
Rosiered Brownson‐Smith +5 more
wiley +1 more source
Numerical analysis of damage during hot forming [PDF]
Computer Methods in Materials Science, 2018 The main aim of the presented research is the analysis of damage evolution in 16MnCrS5 steelduring hot formingbased on results obtained from finite element modelling.
Joanna Szyndler +3 more
doaj +1 more source