Mechanical characterization of flat specimens in tensile test and numerical simulation

2012 ◽  
Vol 26 (2) ◽  
pp. 401-409 ◽  
Author(s):  
Saijun Zhang ◽  
Qinxiang Xia ◽  
Ning Yuan
Author(s):  
Pavel Michel Zaldivar-Almaguer ◽  
Roberto Andrés Estrada-Cingualbres ◽  
Roberto Pérez-Rodríguez ◽  
Arturo Molina-Gutiérrez

The mechanical characterization of the engineering materials is always a topic of interest to engineers and researchers. The objective of this work is to study the butt welded joint resilience and toughness by means of the tensile test and the numerical simulation. The specimens were fabricated by welding two plates of AISI 1015 steel with an E6013 electrode. An algorithm of the numerical integration based on the trapezoid method that allowed calculating the resilience and toughness as the area under the stress - strain curve was implemented. The algorithm was validated by comparing the numerical results of the resilience with those obtained by the analytical method. The results show that the resilience and the toughness values computed with the experimental stress - strain curve, they have correspondence with the same values calculated with the numerical simulation.


2005 ◽  
Vol 72 (1) ◽  
pp. 149-152 ◽  
Author(s):  
Diego J. Celentano ◽  
Eduardo E. Cabezas and ◽  
Claudio M. Garcı´a

This note presents an experimental analysis and a numerical simulation of the mechanical behavior experienced by cylindrical specimens of pure copper during the tensile test. A set of experiments has been carried out in order to derive the hardening parameters that characterize the material response. The simulation of the deformation process during the whole test is performed with a finite element large strain elastoplasticity-based formulation. The results of the simulation show that the mechanical characterization involving the classical Bridgman correction factor, defined in terms of logarithmic strains and aimed at predicting the stress distribution at the necking zone, cannot properly describe the hardening response for this material. Therefore, the use of a different correction factor, which consequently leads to another set of hardening parameters, is proposed. Finally, an adequate experimental validation of the numerical results is obtained for this last case.


2018 ◽  
Vol 11 (79) ◽  
pp. 3901-3910
Author(s):  
Milton F. Coba Salcedo ◽  
Carlos Acevedo Penaloza ◽  
Gustavo Guerrero Gomez

2020 ◽  
Vol 988 ◽  
pp. 206-211
Author(s):  
Alfirano ◽  
Purwaningtyas Agustini ◽  
Sumirat Iwan

Co-Cr-Mo alloys is the material used as a biomedical implant in human body. This material is widely used because they have excellent in corrosion and wear resistance. In this study, microstructure and results of tensile test that were affected by carbon and nitrogen were investigated. The specimens of Co-Cr-Mo alloy were made by investment casting. The compositions of the alloys are Co-28Cr-6Mo-0.8(Si, Mn, Fe)-0,2Ni-(0.08-0.25)C-(0-0.2)N. After that process, microstructure of the alloys is characterized by, SEM/EDX and XRD testing using bulk and electrolytic extracted specimens. The mechanical properties were determined by tensile test. The precipitate content in as-cast alloys was higher when carbon and nitrogen was added. The main precipitate formed in the specimens with variations in carbon and nitrogen is M23X6 type, π-phase, χ-phase, and σ-phase. Carbon and nitrogen promoted M23X6 type and π-phase precipitation, respectively, meanwhile χ-phase was formed in the alloys with low carbon content. The addition of carbon and nitrogen shows an increased in yield strength, tensile strength and elongation of as-cast Co-28Cr-6Mo-0.8(Si, Mn, Fe)-0,2Ni-(0.08-0.25)C-(0-0.2)N alloys.


Author(s):  
Véronique Laterreur ◽  
Jean Ruel ◽  
François A. Auger ◽  
Karine Vallières ◽  
Catherine Tremblay ◽  
...  

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