DEVELOPMENT, CODING AND MEASUREMENT OF A PRECISE AND GENERAL PROCEDURE RELATING TO THE SUBSTANTIAL DISPATIVE NATURE OF MATERIAL FLOWING UNDER REPEATED MECHANICAL AND THERMAL STRESSES
eCon Engineering Kft. The National Research, Development and Innovation Office (NRAI) has awarded HUF 221 million in non-reimbursable funding under the “Supporting R&D&I activities of companies” call. With a total budget of more than HUF 328 million, the project “Development, coding and measurement verification of an accurate and general procedure for the substantial, dissipative nature of material fatigue due to repeated mechanical and thermal stresses” will be implemented.
FIRST PROJECT PHASE
Time period: 01.03.2018. – 28.02.2019.
1. project part (period: 01.03.2018. – 28.02.2019.)
Title: Application of the Gyarmati steering principle of irreversible processes
Task process: Sub-task 1 covers the research phase of our R&D&I project. In the research phase, the following five main work streams were carried out:
A) A review of the literature on the subject, including small-cycle fatigue, the state of the art of entropy-based evaluation methods and general evaluation methods for fatigue.
B) Detailed knowledge of the simulation models of the finite element modelling system (ANSYS) used in our company, in order to be able to adapt the process to be developed in this environment in the future.
C) To review the procedures used in practice for calculating fatigue in order to obtain criteria for the ease of use of the procedure we are developing.
D) Detailed investigation of the effect of heat conduction within the test specimen and between the test specimen and the gripper in uniaxial tensile-pressure fatigue tests. The need for this became clear during the literature review.
E) Definitions and principles for a new approach to fatigue calculations have been formulated, providing a solid theoretical basis for the workflows of the development phase.
F) Fatique machine design, summary of the theoretical background of the measurements.
SECOND PROJECT PHASE
Time period: 01.03.2019. – 29.02.2020.
2. project part (time period: 01.03.2019. – 31.10.2019.)
Title: Development of a method for estimating fatigue life, development of a computer algorithm based on this method, and development and assembly of a fatigue machine to validate the method
Task process: Sub-task 2 covers the first half of the development phase of our R&D&I project. The following three main work streams were implemented:
G) Production of pre-measurement documentation
H) Producing documentation related to software development
I) Production of documentation related to the development of a calculation process
3. project part (time period: 01.11.2019. – 29.02.2020.)
Title: Development and construction of measuring equipment to validate the method
Task process: Sub-task 3 covers the second part of the development phase of our R&D&I project. In this phase, the following workflow was implemented:
J) Preparation of the documentation related to the creation of the fatique testing machine
THIRD PROJECT PHASE
Time period: 01.03.2020. – 31.08.2020.
4. project part (time period: 01.03.2020. – 31.08.2020.)
Title: Further development of the measuring equipment and implementation of validation measurements
Task process: ASub-task 4 covers the final development phase of our R&D&I project. In this phase, the following workflow was implemented:
K) Further development of the fatique testing machine
L) Validation measurement
M) Validation of the software
Further information and project leader:
Gábor Kiglics
kiglics (at) econengineering.com
Report on the first closed phase of work
Press release of the project closure
