Experimental investigation of fracture under controlled stress triaxiality using shear-compression disk specimen
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Fracture"
DOI: 10.1007/s10704-017-0254-7
Abstract: Experimental investigation of the effect of stress triaxiality on fracture strain has been performed using the shear-compression disk (SCD) specimen. A series of experiments was carried out under quasi-static loading conditions at triaxiality levels in… read more here.
Keywords: shear compression; fracture; experimental investigation; triaxiality ... See more keywords
Calibration of constitutive equations under conditions of large strains and stress triaxiality
Sign Up to like & getrecommendations! Published in 2018 at "Archives of Civil and Mechanical Engineering"
DOI: 10.1016/j.acme.2018.02.013
Abstract: Abstract Constitutive equations were calibrated to improve their application in assessing a stress field in front of a crack under the conditions of large strains and stress triaxiality. The Bai–Wierzbicki method was adopted, and certain… read more here.
Keywords: large strains; strains stress; triaxiality; conditions large ... See more keywords
Influences of initial porosity, stress triaxiality and Lode parameter on plastic deformation and ductile fracture
Sign Up to like & getrecommendations! Published in 2017 at "Acta Mechanica Solida Sinica"
DOI: 10.1016/j.camss.2017.10.002
Abstract: Local mechanical properties in aluminum cast components are inhomogeneous as a consequence of spatial distribution of microstructure, e.g., porosity, inclusions, grain size and arm spacing of secondary dendrites. In this work, the effect of porosity… read more here.
Keywords: stress triaxiality; triaxiality lode; porosity; lode parameter ... See more keywords
Effect of stress triaxiality on damage evolution of porous solder joints in IGBT Discretes
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Manufacturing Processes"
DOI: 10.1016/j.jmapro.2018.01.025
Abstract: Abstract In this paper, the effect of stress states on the damage behavior of Sn-based solder connection in an IGBT discrete during thermal cycling (−40 °C to 160 °C) was investigated. To achieve the accurate results in… read more here.
Keywords: triaxiality; effect stress; solder; stress triaxiality ... See more keywords
Failure feature and characterization of material of shear band in cutting Inconel718
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Manufacturing Processes"
DOI: 10.1016/j.jmapro.2019.06.016
Abstract: Abstract Inconel718 is nickel-based alloy and is also a multi-component complex alloy. There exist complex cutting deformation and serrated chip in machining Inconel718, which have been the focus concern of academia and business. In this… read more here.
Keywords: stress triaxiality; shear band; chip; fracture ... See more keywords
An extended GTN model for low stress triaxiality and application in spinning forming
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Processing Technology"
DOI: 10.1016/j.jmatprotec.2018.07.032
Abstract: Abstract The Gurson-Tvergaard-Needleman (GTN) models are effective to predict damage evolution and ductile fracture during plastic deformation, while the existing modified GTN models mainly focus on the range of stress triaxiality between −1/3 η η read more here.
Keywords: model low; gtn model; stress; extended gtn ... See more keywords
Analytical modeling of fracture strain and experimental validation in incremental sheet forming
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Processing Technology"
DOI: 10.1016/j.jmatprotec.2021.117118
Abstract: Abstract Prediction of fracture strain in incremental sheet forming (ISF) process is quite essential to evaluate the formability under optimized process design. In the present work, new analytical formulas of stress triaxiality are derived after… read more here.
Keywords: sheet forming; incremental sheet; fracture; fracture strain ... See more keywords
Experimental program and numerical assessment for determination of stress triaxiality and J effects on AA6101-T4
Sign Up to like & getrecommendations! Published in 2020 at "Theoretical and Applied Fracture Mechanics"
DOI: 10.1016/j.tafmec.2020.102476
Abstract: Abstract This article proposes the study of the mechanical behavior of AA6101-T4 at fracture for different stress states. Firstly, an experimental program has conducted including the design and manufacture of six different types of specimens… read more here.
Keywords: stress triaxiality; experimental program; fracture;
Stress triaxiality effect on cleavage fracture stress
Sign Up to like & getrecommendations! Published in 2020 at "Theoretical and Applied Fracture Mechanics"
DOI: 10.1016/j.tafmec.2020.102689
Abstract: Abstract In this work the effect of stress triaxiality on cleavage fracture stress was investigated by means of micromechanical modelling. A unit-cell model was used to determine macroscopic conditions for brittle fracture, in accordance with… read more here.
Keywords: fracture; cleavage fracture; stress; stress triaxiality ... See more keywords
Stress Triaxiality in Anisotropic Metal Sheets—Definition and Experimental Acquisition for Numerical Damage Prediction
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15113738
Abstract: Governing void growth, stress triaxiality (η) is a crucial parameter in ductile damage prediction. η is defined as the ratio of mean stress to equivalent stress and represents loading conditions. Attempts at introducing material anisotropy… read more here.
Keywords: stress; anisotropic; triaxiality; damage prediction ... See more keywords