Mechanical characterization of impact resistance by pendulum tensile test on PETG and PA6 thermoplastics

2018 ◽  
Vol 11 (79) ◽  
pp. 3901-3910
Author(s):  
Milton F. Coba Salcedo ◽  
Carlos Acevedo Penaloza ◽  
Gustavo Guerrero Gomez
Keyword(s):  
Tensile Test ◽  
Mechanical Characterization ◽  
Impact Resistance

Microstructural and Mechanical Characterization of As-Cast Co-Cr-Mo Alloys with Various Content of Carbon and Nitrogen

2020 ◽  
Vol 988 ◽  
pp. 206-211
Author(s):  
Alfirano ◽  
Purwaningtyas Agustini ◽  
Sumirat Iwan
Keyword(s):  
Tensile Test ◽  
Mechanical Characterization ◽  
Low Carbon ◽  
Phase Precipitation ◽  
Σ Phase ◽  
Biomedical Implant ◽  
Carbon And Nitrogen ◽  
Cast Alloys ◽  
Χ Phase

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.

Comparison of the direct burst pressure and the ring tensile test methods for mechanical characterization of tissue-engineered vascular substitutes

2014 ◽  
Vol 34 ◽  
pp. 253-263 ◽  
Author(s):  
Véronique Laterreur ◽  
Jean Ruel ◽  
François A. Auger ◽  
Karine Vallières ◽  
Catherine Tremblay ◽  
...  
Keyword(s):  
Tensile Test ◽  
Mechanical Characterization ◽  
Test Methods ◽  
Burst Pressure

scholarly journals Experimental and numerical evaluation of resilience and toughness in AISI 1015 steel welded plates

2019 ◽  
pp. 62-75
Author(s):  
Pavel Michel Zaldivar-Almaguer ◽  
Roberto Andrés Estrada-Cingualbres ◽  
Roberto Pérez-Rodríguez ◽  
Arturo Molina-Gutiérrez
Keyword(s):  
Numerical Simulation ◽  
Tensile Test ◽  
Numerical Evaluation ◽  
Mechanical Characterization ◽  
Welded Joint ◽  
Strain Curve ◽  
Experimental Stress ◽  
Stress Strain Curve ◽  
Stress Strain

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.

Spectro-mechanical Characterization of Aromaticity and Maturity of Kerogens in Oil Shale at 6 nm Spatial Resolution

2018 ◽  
Author(s):  
Devon Jakob ◽  
Le Wang ◽  
Haomin Wang ◽  
Xiaoji Xu
Keyword(s):  
Spatial Resolution ◽  
Oil Shale ◽  
Infrared Imaging ◽  
Mechanical Characterization ◽  
Optical Diffraction ◽  
Chemical Compositions ◽  
Valuable Insight ◽  
Eagle Ford Shale

<p>In situ measurements of the chemical compositions and mechanical properties of kerogen help understand the formation, transformation, and utilization of organic matter in the oil shale at the nanoscale. However, the optical diffraction limit prevents attainment of nanoscale resolution using conventional spectroscopy and microscopy. Here, we utilize peak force infrared (PFIR) microscopy for multimodal characterization of kerogen in oil shale. The PFIR provides correlative infrared imaging, mechanical mapping, and broadband infrared spectroscopy capability with 6 nm spatial resolution. We observed nanoscale heterogeneity in the chemical composition, aromaticity, and maturity of the kerogens from oil shales from Eagle Ford shale play in Texas. The kerogen aromaticity positively correlates with the local mechanical moduli of the surrounding inorganic matrix, manifesting the Le Chatelier’s principle. In situ spectro-mechanical characterization of oil shale will yield valuable insight for geochemical and geomechanical modeling on the origin and transformation of kerogen in the oil shale.</p>

MECHANICAL CHARACTERIZATION OF POLYMER MATERIALS UNDER LOW STRAIN RATE LOADING

2017 ◽  
Vol 5 (3) ◽  
pp. 8
Author(s):  
KUMAR DINESH ◽  
KAUR ARSHDEEP ◽  
AGGARWAL YUGAM KUMAR ◽  
UNIYAL PIYUSH ◽  
KUMAR NAVIN ◽  
...  
Keyword(s):  
Strain Rate ◽  
Mechanical Characterization ◽  
Polymer Materials ◽  
Strain Rate Loading ◽  
Low Strain Rate
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