Publication result detail

Regression Functions for Transition Curves

KOHOUT, J.; VĚCHET, S.

Original Title

Regression Functions for Transition Curves

English Title

Regression Functions for Transition Curves

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Loaded materials can fail by rapid fracture at stresses much below their strength level as determined in tests on carefully prepated specimens. To ensure fracture-safe design in the materials , the transition-temperature approach is often used. One of the experimental possibilities determining transition temperature isn the Charpy impact test, when a notched-bar speciamen is loaded in bending by a swinging pendulum and the energy absorbed in the fracturing specimen is measured. Impact energy vs. temperature curve called transitioncurve is divided into three regions : the region of lower temperatures with brittle fracture and low values of absorbed energy (lower shelf), the transition region, and the region of higher temperatures with ductile fracture and high values of absorbed energy (higher shelf). Often also the lateral expansion of broken bars and percentage of brittle (or ductile) fracture surface is measured.

English abstract

Loaded materials can fail by rapid fracture at stresses much below their strength level as determined in tests on carefully prepated specimens. To ensure fracture-safe design in the materials , the transition-temperature approach is often used. One of the experimental possibilities determining transition temperature isn the Charpy impact test, when a notched-bar speciamen is loaded in bending by a swinging pendulum and the energy absorbed in the fracturing specimen is measured. Impact energy vs. temperature curve called transitioncurve is divided into three regions : the region of lower temperatures with brittle fracture and low values of absorbed energy (lower shelf), the transition region, and the region of higher temperatures with ductile fracture and high values of absorbed energy (higher shelf). Often also the lateral expansion of broken bars and percentage of brittle (or ductile) fracture surface is measured.

Keywords

Regression Funciton, Regression Parameters

Key words in English

Regression Funciton, Regression Parameters

Authors

KOHOUT, J.; VĚCHET, S.

Released

07.12.2005

Publisher

Politechnika Opolska

Location

Ustron-Jaszowiec

ISBN

1429-6055

Periodical

Zeszyty naukowe politechniki Opolskiej seria Mechanika

Volume

86

Number

308

State

Republic of Poland

Pages from

241

Pages to

246

Pages count

5

BibTex

@article{BUT46681,
  author="Jan {Kohout} and Stanislav {Věchet}",
  title="Regression Functions for Transition Curves",
  journal="Zeszyty naukowe politechniki Opolskiej seria Mechanika",
  year="2005",
  volume="86",
  number="308",
  pages="241--246",
  issn="1429-6055"
}