Size effect in concrete structures and influence of loading rate

Zdenek P Bazant; Ravindra Gettu

Size effect in concrete structures and influence of loading rate

Zdenek P Bazant^*, Ravindra Gettu

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

The size effect law models the influence of the dimensions of the structure or specimen on the failure stress. This model can be used to quantify the brittleness of failure, and determine material fracture parameters. Recent applications of the method are reviewed. Furthermore, results from an experimental investigation of the influence of loading rate on size effect and fracture behavior, in the static regime, are presented and discussed. The size effect on the fracture of concrete increases significantly with increasing time to failure. It also appears that as the loading rate decreases, the effective process zone length decreases, implying increase in the brittleness. The fracture toughness also decreases with increasing time to failure, explaining the usually observed decrease in strength.

Original language	English (US)
Title of host publication	Serv Durability Constr Mater Proc First Mater Eng Congr
Publisher	Publ by ASCE
Pages	1113-1123
Number of pages	11
ISBN (Print)	0872627772
State	Published - Jan 1 1990
Event	Serviceability and Durability of Construction Materials - Proceedings of the First Materials Engineering Congress Part 1 (of 2) - Denver, CO, USA Duration: Aug 13 1990 → Aug 15 1990

Publication series

Name	Serv Durability Constr Mater Proc First Mater Eng Congr

Other

Other	Serviceability and Durability of Construction Materials - Proceedings of the First Materials Engineering Congress Part 1 (of 2)
City	Denver, CO, USA
Period	8/13/90 → 8/15/90

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Size effect in concrete structures and influence of loading rate",

abstract = "The size effect law models the influence of the dimensions of the structure or specimen on the failure stress. This model can be used to quantify the brittleness of failure, and determine material fracture parameters. Recent applications of the method are reviewed. Furthermore, results from an experimental investigation of the influence of loading rate on size effect and fracture behavior, in the static regime, are presented and discussed. The size effect on the fracture of concrete increases significantly with increasing time to failure. It also appears that as the loading rate decreases, the effective process zone length decreases, implying increase in the brittleness. The fracture toughness also decreases with increasing time to failure, explaining the usually observed decrease in strength.",

author = "Bazant, {Zdenek P} and Ravindra Gettu",

year = "1990",

month = jan,

day = "1",

language = "English (US)",

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series = "Serv Durability Constr Mater Proc First Mater Eng Congr",

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note = "Serviceability and Durability of Construction Materials - Proceedings of the First Materials Engineering Congress Part 1 (of 2) ; Conference date: 13-08-1990 Through 15-08-1990",

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Bazant, ZP & Gettu, R 1990, Size effect in concrete structures and influence of loading rate. in Serv Durability Constr Mater Proc First Mater Eng Congr. Serv Durability Constr Mater Proc First Mater Eng Congr, Publ by ASCE, pp. 1113-1123, Serviceability and Durability of Construction Materials - Proceedings of the First Materials Engineering Congress Part 1 (of 2), Denver, CO, USA, 8/13/90.

TY - GEN

T1 - Size effect in concrete structures and influence of loading rate

AU - Bazant, Zdenek P

AU - Gettu, Ravindra

PY - 1990/1/1

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N2 - The size effect law models the influence of the dimensions of the structure or specimen on the failure stress. This model can be used to quantify the brittleness of failure, and determine material fracture parameters. Recent applications of the method are reviewed. Furthermore, results from an experimental investigation of the influence of loading rate on size effect and fracture behavior, in the static regime, are presented and discussed. The size effect on the fracture of concrete increases significantly with increasing time to failure. It also appears that as the loading rate decreases, the effective process zone length decreases, implying increase in the brittleness. The fracture toughness also decreases with increasing time to failure, explaining the usually observed decrease in strength.

AB - The size effect law models the influence of the dimensions of the structure or specimen on the failure stress. This model can be used to quantify the brittleness of failure, and determine material fracture parameters. Recent applications of the method are reviewed. Furthermore, results from an experimental investigation of the influence of loading rate on size effect and fracture behavior, in the static regime, are presented and discussed. The size effect on the fracture of concrete increases significantly with increasing time to failure. It also appears that as the loading rate decreases, the effective process zone length decreases, implying increase in the brittleness. The fracture toughness also decreases with increasing time to failure, explaining the usually observed decrease in strength.

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M3 - Conference contribution

AN - SCOPUS:0025028608

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T3 - Serv Durability Constr Mater Proc First Mater Eng Congr

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EP - 1123

BT - Serv Durability Constr Mater Proc First Mater Eng Congr

PB - Publ by ASCE

T2 - Serviceability and Durability of Construction Materials - Proceedings of the First Materials Engineering Congress Part 1 (of 2)

Y2 - 13 August 1990 through 15 August 1990

ER -

Size effect in concrete structures and influence of loading rate

Abstract

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ASJC Scopus subject areas

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