Influence of testing specimen size and geometry on size and shape o fracture process zone and fracture energy of cementitious composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F07%3APU69814" target="_blank" >RIV/00216305:26110/07:PU69814 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

čeština

Original language name

Vliv velikosti a geometrie zkušebního tělesa na rozsah a tvar lomové procesní zóny a lomovou energii cementových kompozitů

Original language description

This paper is focused on shape and size of fracture process zone (FPZ) of quasi-britlle materials, and energy dissipated within this zone (local fracture energy) during fracture process. Fracture energy concept is investigated here using two non-linear approaches to modelling of quasi-brittle fracture: cohesive crack models and equivalent elastic crack models. Presented paper deals with the influence of specimen size and relative notch length on the value of local fracture energy and profile of FPZ. Theresearch is conducted by means of numerical simulations of three-point bending tests of notched beams with three specimen sizes - width of specimens W = 80, 320, and 1280 mm. The simulations of fracture tests are performed by using ATENA finite elementmethod software.

Czech name

Vliv velikosti a geometrie zkušebního tělesa na rozsah a tvar lomové procesní zóny a lomovou energii cementových kompozitů

Czech description

This paper is focused on shape and size of fracture process zone (FPZ) of quasi-britlle materials, and energy dissipated within this zone (local fracture energy) during fracture process. Fracture energy concept is investigated here using two non-linear approaches to modelling of quasi-brittle fracture: cohesive crack models and equivalent elastic crack models. Presented paper deals with the influence of specimen size and relative notch length on the value of local fracture energy and profile of FPZ. Theresearch is conducted by means of numerical simulations of three-point bending tests of notched beams with three specimen sizes - width of specimens W = 80, 320, and 1280 mm. The simulations of fracture tests are performed by using ATENA finite elementmethod software.

Type

D - Article in proceedings

CEP classification

JM - Structural engineering

OECD FORD branch

—

Project

<a href="/en/project/GP103%2F07%2FP403" target="_blank" >GP103/07/P403: Specimen geometry influence and size effect on fracture parameters of cementitious composites</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Křehký lom 2007

ISBN

978-80-254-0725-7

ISSN

—

e-ISSN

—

Number of pages

10

Pages from-to

275-284

Publisher name

Neuveden

Place of publication

Brno, Česká republika

Event location

Brno

Event date

Oct 31, 2007

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

—