Ministry of Education and Science of Ukraine
Prydniprovs’ka State Academy of Civil Engineering and Architecture
Materials Science and Materials Treatment Department
Methodical instructions for accomplishment of the course paper
“Mechanical properties and structural strength of materials”
Dnipropetrovs’k – 2008
UDK 669.017: 620.17
Methodical instructions for accomplishment of the course paper in “Mechanical Properties and Structural Strength of Materials”in Applied Materials Science / Authors: Bolshakov V.I., Laukhin D.V., Tchaikovs’ky O.A., Tchaikovs’ka A.O., Beketov O.V., Bereza М.К., Kuksenko V.I., Ryazanova A.V. – Dnipropetrovs'k, PSACE&A, 2007. – 47 pages.
Methodical instructions for accomplishment of the course paper «Mechanical Properties and Structural Strength of Materials» are designed for students of «Applied Materials Science» specialty of internal and extra-mural forms of studies (6.090100, 7.090101). The main aims of methodical instructions are to consolidate knowledge acquired at the discipline study, to train ability to choose and to use correctly the estimation method of steel ductile properties, on the basis of which it is possible to find out the effect of different factors on liability to brittle fracture, to know the physical meaning of impact toughness and its constituents and to know the estimation criteria of ductile-brittle steel transition.
Authors: Doctor of Technical Sciences Bolshakov V.I.,
Ph.D. Laukhin D.V.,
Teacher of English Bereza M.K.
Ph.D. Tchaikovs’ky O.A.,
Assistant Tchaikovs’ka A.O.,
Ph.D. Beketov A.V.,
Ph.D. student Kuksenko V.I.,
Student Ryazanova A.V.
Responsible for the edition: Bolshakov V.I. Doctor of Technical
Science, professor.
Reviewer: Kharchenko V.I., Ph.D., professor of Materials Science
and Materials Treatment Department
Approved
at the meeting of Materials Science
and Materials Treatment Department
Protocol №10 05.02.08
The Head of the Department
professor V.I. Bolshakov
Approved
at the methodical council meeting
of Prydneprovs’ka State Academy
of Civil Engineering and Architecture
Protocol № 4 (50) 25.03.2008
1. Introduction
Preparation of the course paper in discipline «Mechanical Properties and Structural Strength of Materials» for the students of «Applied Materials Science» specialty is intended: to consolidate knowledge acquired at the discipline study, to train ability to choose and to use correctly the evolution method of steel ductile properties, on the basis of which it is possible to find out the effect of different factors on liability to brittle fracture, to know the physical meaning of impact toughness and its constituents and to know the estimation criteria of ductile-brittle steel transition.
The course paper is accomplished in accordance with the general theme «Impact toughness test of hot-rolled and heat-strengthened steel reinforcement». At tasks distribution a teacher determines the variant that directly formulates the theme of the course paper.
Physical and mechanical properties of metals depend on the atomic-crystalline structure, micro- and macrostructures and on such factors as temperature and charts of the stressed state. Consequently, for preparation of the course paper it is necessary not only to be oriented in the studied discipline but also to be able to use knowledge in different branches of physics, resistance of materials, crystallography and metallography.
Accomplishment of the course paper should be started with the diligent analysis of literary resources that are recommended in the given methodical instructions and those found as a result of bibliographic search on this topic. After the literature review, a student should know:
the main statements about toughness;
fracture types, visual estimation of fracture, effect of notch radius of impact specimens on fracture character;
serial curves of toughness characteristics;
determination of critical temperature
by
serial curves of impact toughness;physical sense of fracture appearance transition temperature (FATT) ТК determined by serial curves.
The studied information is necessary for the solution of such problems as serial curves construction, critical temperatures determination, fracture types determination, comparative analysis of ductile properties of reinforced, hot-rolled and heat-strengthened steels prepared by different technologies.
The course paper is designed on the sheets of paper of А4 format according to the USDC requirements for design of research reports taking into account instructions of the Appendix 5.
A student should defend the designed work after correction by a teacher.