Determination of material constants for crack size-dependence crack growth model

U. H. Tiong; R. Jones; L. Molent

Determination of material constants for crack size-dependence crack growth model

U. H. Tiong, R. Jones, L. Molent

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

A crack size-dependence crack growth model was used to characterise the fatigue crack growth in AL 7075-T6 and AL 2024-T351 alloys. It is shown that the crack growth parameters ΔK and a can be used to linearise the crack growth in regions I (elastic) and II (plastic) by plotting fatigue data linear-linear da/dN × √a versus ΔK³, where cubic stress dependency is assumed. A theoretical attempt was made to relate this crack size-dependence fatigue crack growth parameters to the strain-life relationship constants. A reasonably good agreement was achieved when comparing between the theoretical predicted and experimental determined material constants.

Original language	English
Title of host publication	Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Pages	2189-2192
Number of pages	4
Edition	PART 3
Publication status	Published - 1 Dec 2007
Event	Pacific Rim International Conference on Advanced Materials and Processing 2007 - South Korea, Jeju, Korea, South Duration: 5 Nov 2007 → 9 Nov 2007 Conference number: 6th http://www.proceedings.com/02632.html

Publication series

Name	Materials Science Forum
Number	PART 3
Volume	561-565
ISSN (Print)	0255-5476

Conference

Conference	Pacific Rim International Conference on Advanced Materials and Processing 2007
Abbreviated title	PRICM 6
Country/Territory	Korea, South
City	Jeju
Period	5/11/07 → 9/11/07
Internet address	http://www.proceedings.com/02632.html

Keywords

Crack size-dependence
Fatigue crack growth
Frost-Dugdale
Non-similitude

Cite this

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title = "Determination of material constants for crack size-dependence crack growth model",

abstract = "A crack size-dependence crack growth model was used to characterise the fatigue crack growth in AL 7075-T6 and AL 2024-T351 alloys. It is shown that the crack growth parameters ΔK and a can be used to linearise the crack growth in regions I (elastic) and II (plastic) by plotting fatigue data linear-linear da/dN × √a versus ΔK3, where cubic stress dependency is assumed. A theoretical attempt was made to relate this crack size-dependence fatigue crack growth parameters to the strain-life relationship constants. A reasonably good agreement was achieved when comparing between the theoretical predicted and experimental determined material constants.",

keywords = "Crack size-dependence, Fatigue crack growth, Frost-Dugdale, Non-similitude",

author = "Tiong, {U. H.} and R. Jones and L. Molent",

year = "2007",

month = dec,

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language = "English",

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series = "Materials Science Forum",

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booktitle = "Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6",

edition = "PART 3",

note = "Pacific Rim International Conference on Advanced Materials and Processing 2007, PRICM 6 ; Conference date: 05-11-2007 Through 09-11-2007",

url = "http://www.proceedings.com/02632.html",

}

Tiong, UH, Jones, R & Molent, L 2007, Determination of material constants for crack size-dependence crack growth model. in Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6. PART 3 edn, Materials Science Forum, no. PART 3, vol. 561-565, pp. 2189-2192, Pacific Rim International Conference on Advanced Materials and Processing 2007, Jeju, Korea, South, 5/11/07.

Determination of material constants for crack size-dependence crack growth model. / Tiong, U. H.; Jones, R.; Molent, L.
Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6. PART 3. ed. 2007. p. 2189-2192 (Materials Science Forum; Vol. 561-565, No. PART 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

TY - GEN

T1 - Determination of material constants for crack size-dependence crack growth model

AU - Tiong, U. H.

AU - Jones, R.

AU - Molent, L.

N1 - Conference code: 6th

PY - 2007/12/1

Y1 - 2007/12/1

N2 - A crack size-dependence crack growth model was used to characterise the fatigue crack growth in AL 7075-T6 and AL 2024-T351 alloys. It is shown that the crack growth parameters ΔK and a can be used to linearise the crack growth in regions I (elastic) and II (plastic) by plotting fatigue data linear-linear da/dN × √a versus ΔK3, where cubic stress dependency is assumed. A theoretical attempt was made to relate this crack size-dependence fatigue crack growth parameters to the strain-life relationship constants. A reasonably good agreement was achieved when comparing between the theoretical predicted and experimental determined material constants.

AB - A crack size-dependence crack growth model was used to characterise the fatigue crack growth in AL 7075-T6 and AL 2024-T351 alloys. It is shown that the crack growth parameters ΔK and a can be used to linearise the crack growth in regions I (elastic) and II (plastic) by plotting fatigue data linear-linear da/dN × √a versus ΔK3, where cubic stress dependency is assumed. A theoretical attempt was made to relate this crack size-dependence fatigue crack growth parameters to the strain-life relationship constants. A reasonably good agreement was achieved when comparing between the theoretical predicted and experimental determined material constants.

KW - Crack size-dependence

KW - Fatigue crack growth

KW - Frost-Dugdale

KW - Non-similitude

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M3 - Conference Paper

AN - SCOPUS:38349132784

SN - 0878494626

SN - 9780878494620

T3 - Materials Science Forum

SP - 2189

EP - 2192

BT - Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6

T2 - Pacific Rim International Conference on Advanced Materials and Processing 2007

Y2 - 5 November 2007 through 9 November 2007

ER -

Determination of material constants for crack size-dependence crack growth model

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Keywords

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