Publication detail

Influence of accuracy of polynomial shape functions for reconstruction of stress field in cracked body

SOBEK, J. VESELÝ, V.

Original Title

Influence of accuracy of polynomial shape functions for reconstruction of stress field in cracked body

English Title

Influence of accuracy of polynomial shape functions for reconstruction of stress field in cracked body

Type

conference paper

Language

Czech

Original Abstract

Paper presents a study focused on the evaluation of accuracy of polynomial shape functions utilized for description of the stress and deformation fields in cracked body and determined from solution of these fields using numerical tools, mainly using finite element method. The accuracy is quantified with regard to use in specimens made from quasi-brittle material characterized by large nonlinear zone at the crack tip. The analysis is performed as a reverse reconstruction of stress field in a cracked body and one suitable variant (which fulfills the required accuracy) is chosen

English abstract

Paper presents a study focused on the evaluation of accuracy of polynomial shape functions utilized for description of the stress and deformation fields in cracked body and determined from solution of these fields using numerical tools, mainly using finite element method. The accuracy is quantified with regard to use in specimens made from quasi-brittle material characterized by large nonlinear zone at the crack tip. The analysis is performed as a reverse reconstruction of stress field in a cracked body and one suitable variant (which fulfills the required accuracy) is chosen

Keywords

Stress field, geometry functions, over-deterministic method, wedge-splitting test, Williams power series, quasi-brittle fracture

Key words in English

Stress field, geometry functions, over-deterministic method, wedge-splitting test, Williams power series, quasi-brittle fracture

Authors

SOBEK, J.; VESELÝ, V.

RIV year

2015

Released

28. 5. 2015

Location

Ostrava, Česká republika

ISBN

978-80-248-3756-7

Book

Modelování v mechanice 2015

Pages from

1

Pages to

7

Pages count

7

BibTex

@inproceedings{BUT117752,
  author="Jakub {Sobek} and Václav {Veselý}",
  title="Influence of accuracy of polynomial shape functions for reconstruction of stress field in cracked body",
  booktitle="Modelování v mechanice 2015",
  year="2015",
  pages="1--7",
  address="Ostrava, Česká republika",
  isbn="978-80-248-3756-7"
}