Results 71 to 80 of about 2,848 (173)

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, Liu Wenquan, Wang Dantong, Hu Ping   +3 more
doaj   +1 more source

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 ...
openaire   +1 more source

Parameter calibration and application of GTN damage model for girth weld in X80 pipeline

You-qi chuyun
Objective Numerical simulations represent an important approach to studying the damage evolution behaviors of oil and gas pipelines constructed using high-grade steel.
Zhonghao CUI, Yanhe LIU, Haitao WANG, Yanlong LUO, Xinjun ZHANG, Shili LI, Shaokun ZHOU   +6 more
doaj   +1 more source

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
doaj   +1 more source

Study of the slant fracture in solid and hollow cylinders: Experimental analysis and numerical prediction

Fracture and Structural Integrity, 2022
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 the 2017A-T4 aluminum alloy is investigated under ...
Nassima Ben Chabane, Nassim Aguechari, Mohand Ould Ouali   +2 more
doaj  

Investigation of mechanical properties of laser powder bed fused AlSi10Mg lattice structures using GTN damage model

Journal of Materials Research and Technology
Lightweight lattice structures can have their mechanical properties and failure modes predicted through computer simulation. This approach has great potential for use in aerospace, the automotive industry, and defense equipment.
Haowei Guo, Heqin Wang, Xinmeng Li, Zhichao Dong, Lijuan Zhang, Weijie Li   +5 more
doaj   +1 more source

Sequential Bayesian Inference of the GTN damage model using multimodal experimental data

Acta Materialia
52 pages, 17 figures, Submitted to ...
Mohammad Ali Seyed Mahmoud, Dominic Renner, Ali Khosravani, Surya R. Kalidindi   +3 more
openaire   +2 more sources

Organic mononitrites of 1,2-propanediol act as an effective NO-releasing vasodilator in pulmonary hypertension and exhibit no cross-tolerance with nitroglycerin in anesthetized pigs

Drug Design, Development and Therapy, 2018
Kristofer F Nilsson,1,2 Waldemar Goździk,3 Claes Frostell,4 Stanisław Zieliński,3 Marzena Zielińska,3 Kornel Ratajczak,5 Piotr Skrzypczak,5 Sylwia Rodziewicz,5 Johanna Albert,6 Lars E Gustafsson1,† 1Department of Physiology and Pharmacology ...
Nilsson KF, Goździk W, Frostell C, Zieliński S, Zielińska M, Ratajczak K, Skrzypczak P, Rodziewicz S, Albert J, Gustafsson LE   +9 more
doaj  

Evolution of grain trade patterns among RCEP member countries and the potential impacts of agreement signing

Frontiers in Sustainable Food Systems
IntroductionTrade plays a pivotal role in maintaining global grain security. However, the grain trade network (GTN) within Regional Comprehensive Economic Partnership (RCEP) member countries remains unclear.
Minhao Lu, Yingmei Wu, Chao Zhang, Yang Wang, Jiahui Yang, Yi Huang, Yi Wang   +6 more
doaj   +1 more source

Forming Limit Stress Diagram Prediction of Pure Titanium Sheet Based on GTN Model. [PDF]

Materials (Basel), 2019
Huang T, Zhan M, Wang K, Chen F, Guo J, Li Y, Song Z, Bai L.   +7 more
europepmc   +1 more source