|
|
Generating a special loading processes
Balda, Miroslav
New computing methods for assessment of fatigue lives of machine parts exposed to combined stress should be tested. With a view to it, fatigue experiments are pursued with predefined periodic processes compounded of deterministic time functions of normal and shear stresses. A straight application of simple functions leads to improper results due to dynamic properties of the testing machine. The contribution describes a way of generating loading processes of much better properties.
|
|
|
Software support of fatigue tests
Balda, Miroslav
The paper deals with a problem of preparation of non-standard tests to be run on hydroelectric loading systems INOVA and Instron, and processing measured data. The goal of tests is to obtain new information on material properties under random loading. The fatigue tests are carried out on the computer controlled systems.
|
|
|
Stressing optimization under shortened fatigue tests applications
Svoboda, Jaroslav
Paper sumarizes results of works focused on parameter optimization of the Rešet method of shortened fatigue tests that can be successfully applied to fatigue strength evaluation of dynamically stressed real structures. Works are aimed particularly at so called step loading speed, which significantly influences the test results.
|
|
| |
|
|
Statistical processingof fatigue tests in LATEX
Balda, Miroslav ; Svoboda, Jaroslav ; Fröhlich, Vladislav
The paper deals with a problem of making up protocols on material fatigue tests containing measured data, their regression, 90% and 95% confidence intervals, a diagram of all these functions, and a table of the processing results. All these steps are done in one computer run in the LATEX environment without any import of external graphics or results. New styles have been developed for the purpose. The system is fast reliable.
|
guest ::
