Results 1 to 10 of about 176 (139)
Parametric study of piercing force and surface quality in elastomer-assisted tube piercing [PDF]
Scientific ReportsPiercing metal tubes is essential for creating openings in multi-port industrial fittings. Conventional piercing techniques often struggle to provide satisfactory edge quality, leading to challenges such as needing pre-drilling, limitations to circular ...
Hamzeh Mamashli +2 more
doaj +2 more sources
Insights into particle dispersion and damage mechanisms in functionally graded metal matrix composites with random microstructure-based finite element model [PDF]
Scientific ReportsThis study investigates the impact of $$\mathrm {Al_2O_3}$$ Al 2 O 3 particle volume fraction and distribution on the deformation and damage of particle-reinforced metal matrix composites, particularly in the context of functionally graded metal matrix ...
M. E. Naguib +3 more
doaj +2 more sources
Journal of Materials Research and Technology, 2021 The investigation on the formability of 7075-T6 aluminum alloy at elevated temperatures is significant due to its low plasticity at room temperature. Meso-Damage mechanics suggests that the growth and accumulation of micro-voids is an important factor ...
Xiangji Li, Meng Xu, Zhiqiang Zhang
doaj +1 more source
Numerical Study of Block Tearing Failure in Steel Angles Connected by One Leg [PDF]
Archives of Civil Engineering, 2021 Block tearing is a failure mode of steel connections based on rupture of material. In this paper, a numerical model is developed to capture fracture initiation and progression until failure in steel angles connected by one leg using single row of bolts ...
Edyta Bernatowska, Lucjan Ślęczka
doaj +1 more source
A consistent use of the Gurson-Tvergaard-Needleman damage model for the R-curve calculation [PDF]
Fracture and Structural Integrity, 2013 The scope of the present work is to point out a consistent simulation procedure for the quasi-static fracture processes, starting from the micro-structural characteristics of the material.
Gabriele Cricrì
doaj +4 more sources
Ocean Engineering, 2020 Abstract Nonlinear numerical simulation has become an important tool for analysing dynamic responses and energy dissipation of structures during ship collision and grounding scenarios. However, determining a globally acknowledged failure criterion remains a challenging task.
Wang Z, Hu Z, Liu K, Chen G
openaire +2 more sources
Application of Gurson-Tvergaard-Needleman constitutive model to the tensile behavior of reinforcing bars with corrosion pits. [PDF]
PLoS ONE, 2013 Based on meso-damage mechanics and finite element analysis, the aim of this paper is to describe the feasibility of the Gurson-Tvergaard-Needleman (GTN) constitutive model in describing the tensile behavior of corroded reinforcing bars.
Yidong Xu, Chunxiang Qian
doaj +1 more source
Net section resistance of steel angles connected by one leg [PDF]
Archives of Civil Engineering, 2022 In civil engineering structures, steel angles are often used as tensioned elements, because of their ease of fabrication and assembly. For practical reasons, angles are usually connected only by one leg, using a single row of bolts, and rupture of ...
Edyta Bernatowska, Lucjan Ślęczka
doaj +1 more source
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
doaj +1 more source
The numerical analysis of micro-damage evolution in damaged element with structural discontinuity
Budownictwo i Architektura, 2013 The numerical analysis of microdamage evolution in S235JR steel is presented in the paper. The simulation was performed basing on the Gurson-Tvergaard-Needleman material model which takes into consideration the influence of microdamage to the material ...
Paweł Kossakowski
doaj +1 more source