Results 81 to 90 of about 13,842,156 (196)

Predictive modeling of fracture behavior in Ti6Al4V alloys manufactured by SLM process

Fracture and Structural Integrity
This study focuses on ductile fracture behavior prediction for Ti6Al4V alloys fabricated via Selective Laser Melting (SLM). A modified Gurson-Tvergaard-Needleman (GTN) model characterizes void growth and shear mechanisms under uniaxial stress.
Mohsen Sarparast, Majid Shafaie, Mohammad Davoodi, Ahmad Memaran Babakan, Hongyan Zhang   +4 more
doaj   +1 more source

Determination of GTN Model Parameters Based on Artificial Neutral Network for a Ductile Failure

, 2021
The Gurson – Tvergaard – Needleman (GTN) mechanical model is widely used to predict the failure of materials based on laboratory specimens, direct identification of Gurson – Tvergaard – Needleman parameters is not easy and time-consuming, and the most ...
Szabolcs, SZAVAI, CHAHBOUB, YASSINE
core   +1 more source

GTN-P: 41 years of Mean Annual Ground Temperature (MAGT) across latitudinal and elevational gradients in the Northern Hemisphere, v1.0

The Global Terrestrial Network for Permafrost (GTN‐P) established by the International Permafrost Association (IPA) and WMO under the GCOS and GTOS networks is the primary international global program for monitoring the permafrost Essential Climate ...
Wieczorek, Mareike, Bartsch, Annett, Elger, Kirsten, Lewkowicz, Antoni G, GTN-P, Romanovsky, Vladimir E, Boike, Julia, Biskaborn, Boris K, Heim, Birgit, Kholodov, Alexander L, Nicolsky, Dmitry, Streletskiy, Dmitry A, Christiansen, Hanne Hvidtfeldt, Irrgang, Anna Maria   +13 more
core   +1 more source

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

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  

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

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

Application of a modified GTN-model to predict large deformation failure of pressure vessels

, 2017
The purpose of this research is to predict failure of a largely deformed pressure vessel. The employed Gurson-Tvergaard-Needleman (GTN) model enables a failure prediction through its in-built damage evolution law.
Orrin-Seemann, Daniel
core