Experimental and numerical analysis of micromechanical damage in the punching process for High-Strength Low-Alloy steels [PDF]
, 2014 Sequential sheet metal forming processes can result in the accumulation of work hardening and damage effects in the workpiece material. The mechanical strength of the final component depends on the “evolution” of these two characteristics in the ...
GERMAIN, Guénaël +3 more
core +1 more source
Numerical investigation of cut-edge effect using the Gurson-Tvergaard-Needleman model [PDF]
, 2014 peer reviewedIn this contribution, the formability of sheet metal cut edges is investigated using damage model.Classical forming limit diagrams are known not to apply properly to the cut edges.
Lemoine, Xavier +4 more
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Evaluating the Applicability of GTN Damage Model in Forward Tube Spinning of Aluminum Alloy
Metals, 2016 Tube spinning is an effective plastic-forming technology for forming light-weight, high-precision and high-reliability components in high-tech fields, such as aviation and aerospace.
Xianxian Wang +3 more
doaj +1 more source
Failure analyses for plate monotonic/cyclic and elbow out-of-plane cyclic loading tests using the Gurson–Tvergaard–Needleman model [PDF]
In this study, an analytical approach is proposed to simulate the failure behavior of a thinned-wall pipe elbow subjected to internal pressure and out-of-plane cyclic bending loads.
10332644 +7 more
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A calibration of Gurson-Tvergaard- Needleman micromechanical model of ductile fracture
, 2013 Fracture mechanics characteristics of ductile fracture often depend on geometry and size of specimens. A micromechanical modelling of material damage proposes a tool for treatment of geometry and size effects in fracture mechanics.
Stratil, Luděk
core
Prediction of FLD using Abaqus and Gurson Model for Simple Flat Spacemen
, 2023 In the past century, in many industries, such as, metal forming industry, it has been important to predict ductile damage and fracture of metals under complex loadings.
Baksa, Attila +2 more
core +1 more source
, 2022 The third generation of advanced high-strength steels (AHSS) brought attention to the steel and automotive industries due to its good compromise between formability and production costs.
Rafael O. Santos +4 more
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Coupled identification of the hardening behavior laws and Gurson–Tvergaard–Needleman damage parameters - Validation on tear test of 12NiCr6 CT specimen [PDF]
, 2019 This work is devoted to the application of the micromechanical Gurson-Tvergaard-Needleman (GTN) model to study the ductile tearing of 12NiCr6 steel. GTN model is widely used to describe the three stages of ductile tearing: nucleation, growth and the ...
Hadj Miloud, Mohamed +2 more
core +3 more sources
Characterizing properties of pipeline girth welds: A novel testing protocol and validation
Journal of Pipeline Science and EngineeringAccurate, region-specific mechanical properties of pipeline girth welded joints are fundamental for structural safety design and integrity assessment.
Tieyao Zhang +6 more
doaj +1 more source
, 2014 The paper deals with a utilization of miniaturized tensile specimens for purposes of local approach application from limited amount of test material.
Stratil, Luděk
core