| Autor: |
V. Ru풞icka, L. Malkov�, S. Seitl |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Frattura ed Integrità Strutturale, Vol 11, Iss 42, Pp 128-135 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1971-8993 |
| DOI: |
10.3221/IGF-ESIS.42.14 |
| Popis: |
A study on the accuracy of the values of Williams� expansion terms influenced by rounding numbers is presented. The results are presented taking into account a three-point bend single edge notched beam. Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in this work, more precisely via its multi-parameter formulation, i.e. by Williams� power series (WPS). Determination of the coefficients of the terms of this series is performed using the least squaresbased regression technique known as the over-deterministic method (ODM), for which displacements data obtained numerically in software ANSYS are taken as inputs. The values of Williams� expansion terms based on the displacement data obtained are calculated by using various levels of rounding numbers and the results are compared and discussed |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
