1 documents found
Head: Pasternak Yaroslav M.. Thermomechanics of anisotropic and smart materials with thread-like and shell-like inclusions.
Lutsk National Technical University. № 0120U104877
1 documents found
Updated: 2025-12-07
Total number
Full text
Total number
Full text
Number of local repositories
Full text
0120U104877,
(
0220U104124
0221U105756
0221U106342
)
Thermomechanics of anisotropic and smart materials with thread-like and shell-like inclusions
Pasternak Yaroslav M., д.ф.-м.н.
12-11-2020
Lutsk National Technical University
The aim of the project is to develop mathematical models of thermoelastic and thermomagnetoelastic media with thin shell-like or thread-like inclusions along with the methods for solving the corresponding boundary value problems of thermomechanics based on the boundary integral equation and the boundary element methods. For the first time it is planned to develop: a) models of thin spatial shell-like deformable inclusions, which also take into account the interaction of different physical fields; b) models for both spatial nondeformable and deformable thread-like inclusions, which are sensitive to the influence of fields of different physical nature; c) a mathematical theory for solving boundary value problems of mechanics and thermomechanics for domains with weakly formulated boundary conditions (for example, boundary conditions given on a line in spatial problems, which arise in the analysis of solids with thread-like inhomogeneities); d) algorithms for numerical solution of formulated problems on the basis of methods of integral equations and boundary elements; e) algorithms for determining the effective properties of composites with dispersed shell-like or thread-like (fiber) filament on the basis of generalization of the developed models and methods. The project will include analysis of the stress-strain state and concentration of physical fields near shell-like and thread-like inhomogeneities, the study of fracture of materials with inclusions of such type, as well as issues of imperfect contact of thin spatial inhomogeneities with the surrounding medium. All the above positions form a scientific novelty of the future results of the project, which in general solve the scientific problem of development the foundation and computational methods for the theory of fibrous composites.
2024-12-10
Updated: 2025-12-07
Saving a scientific data set occurs in two stages:
1.) Creating a data set
Enter the name of the set, a brief description of the set (annotation), and click the “Create set” button. After that, a draft data set will be automatically created, which you can save for further work with the set. The system will redirect you to the “Data set information” page.
2.) Filling in the data
On the “Data set information” page, you need to fill in all the fields related to the data set and upload the files.
Please note! Each file is uploaded separately. This is done to ensure the stable operation of the system.
Once you have filled in the information about the scientific data set and added the necessary files, you can save the draft or send the data to the system.
Please note! Once the data has been sent, you cannot change it.
Drafts are necessary for storing the data set and editing it before sending.
All accounts on the NRA website go through a standard registration procedure and are verified. However, in order to obtain additional features, such as publishing open reviews of academic texts, verification by affiliation is required.
To obtain the status “verified”, you must change your primary email address to a corporate one, which is tied to a scientific or educational institution.
For example: user@ukrintei.ua, user@nas.gov.ua
After confirming your corporate email address, your account will be automatically verified by affiliation.
If your email address is corporate, but your account does not have a verification mark, you need to write to us at the email address NRAT@ukrintei.ua. After verification, we will add your address to the database, and your account will be verified.
After completing the verification procedure for affiliation, you can change the primary email address to a convenient one for you, without losing your status during the current verification.
You only need to verify for affiliation once.
* We use corporate addresses from the Unified State Database on Education and the State Register of Scientific Institutions Supported by the State
To search for news published on the official website of NRАT in the “News” section, you need to enter one word, several words, or an exact phrase in the search field. Different terms are separated by spaces.
The search is performed everywhere – in the title and the news text.
For a more comprehensive result, it is recommended to use word stems (parts of words without endings).
When using multiple words for the search, they are combined using one of the logical methods described below.
By default, the logical connector “and” is used. In this case, search results will include all news releases that contain the specified words, even if they are located separately from each other and are in different parts of the text.
Example: Search phrase: OECD report. Search result: all news containing the words “report” and “OECD” in the text and in the title, both together and separately.
If a phrase or phrase is enclosed in quotation marks (“), the results will include all publications where this exact phrase or phrase is found.
Example: Search phrase: “OECD report.” Search result: all news containing the exact phrase “OECD report.”
If you know the publication date of the news or are interested in a specific time frame in which they were published on the website, you can select such a date or date range in the additional field that looks like a calendar. The date is entered in the format year-month-day and confirmed by clicking on the corresponding date in the calendar dropdown. You can enter a date or choose one by browsing through the calendar by months and years. By default, the interval starts from the oldest date (2018-01-23) and ends with the current date.
You can also use one or more hashtags, which are located under the search field on the right side of the “News” page.
Please note: The search for academic texts is carried out in a separate search window at the following link https://nrat.ukrintei.ua/searchdb.