Determination of the ultimate tensile strength of rocks by the unaixial compression test data

2009 ◽  
Vol 45 (3) ◽  
pp. 235-239 ◽  
Author(s):  
B. A. Rychkov ◽  
Zh. Y. Mamatov ◽  
E. I. Kondrat’eva
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Test Data ◽  
Compression Test

A Relationship between the Crystalization Rate and the Structure and Strength Characteristics or the Fe-C-Cr, Fe-C-Cr-Ti and Fe-C-Cr-Ce Alloys Subjected to Directional Solidification

1984 ◽  
Vol 34 ◽  
Author(s):  
Edward Fras ◽  
Edward Guzik ◽  
Antoni Karamara
Keyword(s):  
Growth Rate ◽  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Directional Solidification ◽  
Strength Characteristics ◽  
A Value ◽  
Coupled Growth

ABSTRACTThe paper present the results of investigation into the directional solidification of Fe-C-Cr alloys containing about 30% Cr and various contents of carbon. The main types of the structure of these alloys were given and the zone of a coupled growth of the eutectic was determined as well as an effect of the growth rate on the interfacial distance λ and on the tensile strengthof these alloys. It was proved that the additions of titanium and cerium considerably reduce the distance λ and increase the tensile strength, which in the case of an Fe-Cr-C-Ce alloy can reach a value of about 3250 MPa. The alloys solidified in the form of bars and plates which also enabled the determination of an effect of angle between the axis of the carbide fibres and the direction of loading on the ultimate tensile strength. of these alloys.

Determination of the ultimate tensile strength of ceramics up to 2500 K in the environment of combustion gases

Refractories ◽  
1990 ◽  
Vol 31 (3-4) ◽  
pp. 153-155
Author(s):  
O. V. Bakunov ◽  
E. P. Pakhomov ◽  
Yu. I. Chubarov
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Combustion Gases

scholarly journals Optimization of Friction Stir Processing Parameters for Aluminum Alloy (AA6061-T6) Using Taguchi Method

2019 ◽  
Vol 12 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Muna K. Abbassa ◽  
Noor Alhuda B. Sharhan
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloy ◽  
Ultimate Tensile Strength ◽  
Taguchi Method ◽  
Friction Stir Processing ◽  
Thick Plate ◽  
Processing Parameters ◽  
Friction Stir ◽  
Tool Tilt Angle

This work is devoted toward optimization of the parameters of the friction stir processing (FSP) which effect on tensile strength of aluminium alloy AA6061-T6 of 6mm thick plate by applying a certain number of tests utilizing the Taguchi method. Design of experiment (DOE) has been applied for the determination of the most important parameters influencing ultimate tensile strength. FSP was achieved under three different rotation speeds (800,1000 and 1250) rpm, different transverse speeds (16,25 and 32) mm\min, and number passes(1,2 and 3)  in the same direction and tool tilt angle was 2°  with using threaded cylindrical pin profile.  The best FSP parameters were 1250 rpm and 32 mm\min and two passes. It was found that the higher hardness value was 75HV in stir zone center and then decreases toward the TMAZ, HAZ and the base metal

scholarly journals Modification of Aluminium-Silicon Near-Eutectic Alloy with Use of Electrolysis of Sodium Salt

2017 ◽  
Vol 62 (4) ◽  
pp. 2371-2374 ◽  
Author(s):  
A. Białobrzeski ◽  
J. Pezda ◽  
A. Jarco
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Liquid Alloy ◽  
Eutectic Alloy ◽  
Sodium Salt ◽  
Sodium Salts ◽  
Physical Chemical ◽  
Metallic Bath ◽  
Metallurgical Processes

AbstractThe present work discusses results of preliminary tests concerning the technology of continuous dosage of sodium to a metallic bath from the aspect of modification of EN AC-44200 alloy, through the use of a multiple compound (salt) of sodium. The technology consists in continuous electrolysis of sodium salts occurring directly in a crucible with liquid alloy. As a measure of the degree of alloy modification over the course of testing, the ultimate tensile strength (UTS or Rm) and analysis of microstructure are taken, which confirm the obtained effects of the modification on the investigated alloy. Assurance of stable parameters during the process of continuous modification with sodium, taking into consideration the fact of complex physical-chemical phenomena, requires additional tests aimed at their optimization and determination of a possibility of implementation of such technology in metallurgical processes.

Production from PLA Materials Processed Vertically by FDM Method RP Technology

2017 ◽  
Vol 756 ◽  
pp. 80-87
Author(s):  
Anton Panda ◽  
Ema Nováková-Marcinčinová ◽  
Ľudmila Nováková-Marcinčinová ◽  
Tibor Krenický ◽  
Tadeusz Zaborowski
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Main Part ◽  
Blue Dye ◽  
Experimental Production ◽  
Strength Based ◽  
Static Tensile ◽  
Material Sample

The article is focused on the aspects in samples production of sophisticated material – PLA - PolyLacticAcid, PLA plastic. The main part of the work focuses on experimental production and testing of PLA material - PolyLacticAcid plastic, printed on RepRap 3D device that works on the "open source" principle. The article presents the outcomes of test materials in the form of measurement protocols recorded in the software, the measured values ​​in a static tensile test, marked down in tables and shown in work graphs. The article describes selected and carried out tests of mechanical properties of PLA plastics extruded in different directions in this case carried out vertically by FDM rapid prototyping method of two PLA materials such as pure without additives blended with blue dye. The tests are mainly focused on the determination of ultimate tensile strength. Based on the results obtained, the samples made of two PLA materials were compared in the end to establish which produced PLA material sample is stronger. There are outputs in the form of logs, charts and tables that provide information about the executed tests and comparisons, which were made by the authors.

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