scholarly journals Mechanical Properties of Welded Joints of 1.3964 Steel for Computer Aided Engineering (CAE) Purposes

2020 ◽  
Vol 220-221 (1-2) ◽  
pp. 15-28
Author(s):  
Radosław Kiciński ◽  
Wojciech Jurczak
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Welded Joints ◽  
Material Model ◽  
Computer Aided Engineering ◽  
Strength Analysis ◽  
Welded Steel ◽  
Static Tensile Test ◽  
Computer Aided ◽  
Static Tensile

AbstractThe article presents the study of mechanical properties of welded steel from which the hull of a modern mine destroyer was made. Keeping the tightness of ship compartments during operation depends on the strength of these joints. The results of testing the mechanical properties of 1.3964 steel and its welded joints subjected to a static tensile test were presented, and a Johnson – Cook material model was proposed. The material model can be used in CAE (Computer Aided Engineering) simulations related to hull strength analysis.

scholarly journals Advanced Configuration Parameters of Post Processor Influencing Tensile Testing PLA and Add-Mixtures in Polymer Matrix in the Process of FDM Technology

2021 ◽  
Vol 11 (13) ◽  
pp. 6212
Author(s):  
Jozef Török ◽  
Monika Törökova ◽  
Darina Duplakova ◽  
Zuzana Murcinkova ◽  
Jan Duplak ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Reference Sample ◽  
Test Sample ◽  
Original Material ◽  
Surface Layers ◽  
Standard Type ◽  
Static Tensile Test ◽  
Static Tensile ◽  
The Individual

The present paper focuses on the configuration possibilities of post -processor influencing mechanical properties of a given test sample produced by the FDM printer from different materials. The research consists of assessing the composite material configurations through a static tensile test conducted on 80 samples produced. The samples were produced based on ISO 527-2 standard, type 1A, with a horizontal position and a layer height of 0.2 mm. The individual samples consisted of four basic groups of materials—the pure Polylactic acid (PLA) plastic (reference sample), and three composite samples with admixtures—PLA matrix with a copper admixture, PLA matrix with an iron admixture, and PLA matrix with a steel admixture. The static tensile test was conducted at a test speed of 5 mm/min. During the research, reference samples (pure PLA) were assessed in five orientations. Samples made of the PLA composite materials with admixtures were manufactured, tested, and evaluated only in the 0° orientation. The paper concludes by comparing the results of measurement with the original material, free from additives, and with the researched influence of the orientation of the prints on the resulting mechanical properties of shear samples and their surface structure. In the conducted experiments, the lowest tensile strength has been demonstrated in test samples the orbital transitions and the upper surface layers of which were parallel to the infill.

scholarly journals Mechanical properties of carbon fiber reinforced polyamide produced by CFF method (Continuous Filament Fabrication)

2021 ◽  
Vol 332 ◽  
pp. 01006
Author(s):  
Bartosz Nowinka ◽  
Dariusz Sykutera
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Relative Elongation ◽  
Test Results ◽  
Elongation At Break ◽  
Current Trends ◽  
Thermoplastic Matrix ◽  
Static Tensile Test ◽  
Continuous Filament ◽  
Static Tensile

The study presents the influence of content and orientation of continuous carbon fibers (CF) on the static tensile test results of a polyamide matrix (PA) composite, produced using Continuous Filament Fabrication (CFF) technology. Taking the polyamide’s crystalline structure into account, an attempt was also made to produce test specimens under various temperature conditions of the device chamber. The test samples were produced in use of the Mark Two device (Markforged, Great Britain). It has been shown that the content and orientation of the reinforcement in relation to the direction of stresses generated during the static tensile test, has a significant impact on the parameters determined in this test. The dependence presented in the article, confirms that materials in a thermoplastic matrix, reinforced with continuous fibers are a topic in line with the topic of current trends in fields of material engineering and design of structural products. The conducted research proves that the temperature in the working chamber of the Mark Two device affects formation of mechanical properties of PA+CF composites, fabricated using CFF technology. Manufacturing composites at elevated temperature resulted in significant decrease of E and Rm values for 4 out of five tests performed, but a considerable increase in their relative elongation at break was noticed.

scholarly journals Influence of the Annealing Time After Welding on the Mechanical Properties of Welded Joint of T91 Steel

2016 ◽  
Vol 61 (3) ◽  
pp. 1425-1430 ◽  
Author(s):  
K. Wojsyk ◽  
G. Golański ◽  
J. Jasak ◽  
J. Słania ◽  
A. Zieliński ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Creep Test ◽  
Welded Joints ◽  
Welded Joint ◽  
Bending Test ◽  
Basic Study ◽  
Accelerated Creep ◽  
Static Tensile ◽  
Thin Walled

Abstract The paper presents the results of research on the influence of the time of annealing after welding at the temperature of 750°C on the mechanical properties of a homogeneous welded joint of T91 steel. The welded joints were annealed at 750°C for 0.5; 1.0; 1.5 and 2.0 hours. The research scope included the basic study, i.e. the measurement of hardness, the test of impact energy, the static tensile test, bending test, as well as the accelerated creep test. The results of the tests of mechanical properties indicate the possibility of using shorter annealing times for thin-walled welded joints, and thus the possibility of savings as a result of flexible heat treatments.

scholarly journals Microstructure and Mechanical Characterization of X70 Steel Welded Joints Through Hardness Mapping and Tensile Strength Testing

2017 ◽  
Vol 62 (4) ◽  
pp. 2021-2027
Author(s):  
A. Hamdollahzadeh ◽  
H. Omidvar ◽  
A. Amirnasiri
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Welded Joints ◽  
Optical Microscope ◽  
Welded Steel ◽  
Joint Zone ◽  
Fine Grain ◽  
Microstructure And Mechanical Properties ◽  
Light Optical Microscope

AbstractIn this paper, effects of preheating and type of electrode (E8010 and E8018) on microstructure and mechanical properties of 5L X70 steel welded joints were investigated. The microstructure of joint zone and fracture surface was analyzed by light optical microscope and scanning electron microscope equipped with energy dispersive spectroscopy. Hardness mapping and tensile test were also performed to find the relationship between microstructure and mechanical properties. The results showed a consistency between the hardness variation data and the microstructure of joint zone. Moreover, hardness mapping revealed coarse and fine grain subregions in the heat affected zone which were not detected in the micrographs. The tensile test indicated that the non-preheated sample, welded by cellulosic E8010, had the minimum value in the strength and the ductility of welded steel. The fractography also determined that size and distribution of strengthening phases affected the fracture mode of welded specimens.

Mechanical Properties of Flat Braided Composites With a Circular Hole

1999 ◽  
Author(s):  
Takeru Ohki ◽  
Shinya Ikegaki ◽  
Ken Kurasiki ◽  
Hiroyuki Hamada ◽  
Masaharu Iwamoto
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Circular Hole ◽  
Fracture Behavior ◽  
Fatigue Property ◽  
Tensile Tests ◽  
Fatigue Tests ◽  
Braided Composites ◽  
Static Tensile ◽  
The One

Abstract In this study, fracture behavior and strength in the flat braided bar with a circular hole were investigated by static and fatigue test. Two type of specimens were prepared. They are a braided flat bar with an integrally-formed braided hole and a braided flat bar with a machined hole. Moreover, we also examined a specimen that had a metal pin inserted at the circular hole. This specimen was subjected to a static tensile test. The results of the tensile tests indicate that the strength of the flat bar with a braided hole was larger than that of the one with the machined hole. Furthermore, from the results of the fatigue tests, the flat bar with the braided hole showed higher fatigue property than that of the one with the machined hole.

Static Tensile Test of rGO-PDMS Composite

2018 ◽  
pp. 46-51
Author(s):  
Barbara NASIŁOWSKA ◽  
Piotr WAWRZYNIAK ◽  
Zdzisław BOGDANOWICZ ◽  
Paweł BOGUSZ ◽  
Aneta BOMBALSKA ◽  
...  
Keyword(s):  
Tensile Test ◽  
Static Tensile Test ◽  
Static Tensile

Mechanical Properties of Flat Braided Composites With a Circular Hole

2000 ◽  
Vol 122 (4) ◽  
pp. 420-424 ◽  
Author(s):  
Takeru Ohki ◽  
Shinya Ikegaki ◽  
Ken Kurasiki ◽  
Hiroyuki Hamada ◽  
Masaharu Iwamoto
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Circular Hole ◽  
Fracture Behavior ◽  
Fatigue Property ◽  
Tensile Tests ◽  
Fatigue Tests ◽  
Braided Composites ◽  
Static Tensile ◽  
The One

In this study, fracture behavior and strength in the flat braided bar with a circular hole were investigated by static and fatigue test. Two types of specimen were prepared. They are a braided flat bar with an integrally formed braided hole and a braided flat bar with a machined hole. Moreover, we also examined a specimen that had a metal pin inserted at the circular hole. This specimen was subjected to a static tensile test. The results of the tensile tests indicate that the strength of the flat bar with a braided hole was larger than that of the one with the machined hole. Furthermore, from the results of the fatigue tests, the flat bar with the braided hole showed higher fatigue property than that of the one with the machined hole. [S0094-4289(00)02604-9]

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