A means for industry to determine the economic life of bonded joints under representative operation flight loads

Rhys Jones; Anthony J. Kinloch; John G. Michopoulos; Daren Peng

doi:10.1016/j.prostr.2020.10.044

A means for industry to determine the economic life of bonded joints under representative operation flight loads

Rhys Jones, Anthony J. Kinloch, John G. Michopoulos, Daren Peng

Mechanical & Aerospace Engineering

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

4 Citations (Scopus)

Abstract

The present paper shows that the variability in the cyclic fatigue crack growth (FCG) rate in structural adhesives that is frequently observed in laboratory test results can be captured by using a Hartman-Schijve methodology. To this end the Hartman-Schijve equation has been used to access an 'upper-bound' FCG rate curve that (a) encompasses all the experimental data, (b) provides a conservative, 'worst-case' FCG rate curve, and (c) accounts for the experimental scatter that is frequently seen under fatigue loading. The importance of allowing for the variability in the measured FCG rate is illustrated by considering FCG in a bonded double-overlap joint subjected to an industry-standard, combat-aircraft flight-load fatigue-cycle spectrum (i.e. FALSTAFF).

Original language	English
Title of host publication	Procedia Structural Integrity
Publisher	Elsevier
Pages	370-380
Number of pages	11
Volume	28
DOIs	https://doi.org/10.1016/j.prostr.2020.10.044
Publication status	Published - 2020
Event	Virtual European Conference on Fracture 2020 - Virtual, Online Duration: 29 Jun 2020 → 1 Jul 2020 Conference number: 1st https://www.sciencedirect.com/journal/procedia-structural-integrity/vol/28/suppl/C (Proceedings)

Conference

Conference	Virtual European Conference on Fracture 2020
Abbreviated title	VECF 2020
City	Virtual, Online
Period	29/06/20 → 1/07/20
Internet address	https://www.sciencedirect.com/journal/procedia-structural-integrity/vol/28/suppl/C (Proceedings)

Keywords

CFRP
Composites
Fatigue
Fracture mechanics
Modelling
Service-life

Access to Document

10.1016/j.prostr.2020.10.044

Cite this

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title = "A means for industry to determine the economic life of bonded joints under representative operation flight loads",

abstract = "The present paper shows that the variability in the cyclic fatigue crack growth (FCG) rate in structural adhesives that is frequently observed in laboratory test results can be captured by using a Hartman-Schijve methodology. To this end the Hartman-Schijve equation has been used to access an 'upper-bound' FCG rate curve that (a) encompasses all the experimental data, (b) provides a conservative, 'worst-case' FCG rate curve, and (c) accounts for the experimental scatter that is frequently seen under fatigue loading. The importance of allowing for the variability in the measured FCG rate is illustrated by considering FCG in a bonded double-overlap joint subjected to an industry-standard, combat-aircraft flight-load fatigue-cycle spectrum (i.e. FALSTAFF).",

keywords = "CFRP, Composites, Fatigue, Fracture mechanics, Modelling, Service-life",

author = "Rhys Jones and Kinloch, {Anthony J.} and Michopoulos, {John G.} and Daren Peng",

year = "2020",

doi = "10.1016/j.prostr.2020.10.044",

language = "English",

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note = "Virtual European Conference on Fracture 2020, VECF 2020 ; Conference date: 29-06-2020 Through 01-07-2020",

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AU - Jones, Rhys

AU - Kinloch, Anthony J.

AU - Michopoulos, John G.

AU - Peng, Daren

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PY - 2020

Y1 - 2020

N2 - The present paper shows that the variability in the cyclic fatigue crack growth (FCG) rate in structural adhesives that is frequently observed in laboratory test results can be captured by using a Hartman-Schijve methodology. To this end the Hartman-Schijve equation has been used to access an 'upper-bound' FCG rate curve that (a) encompasses all the experimental data, (b) provides a conservative, 'worst-case' FCG rate curve, and (c) accounts for the experimental scatter that is frequently seen under fatigue loading. The importance of allowing for the variability in the measured FCG rate is illustrated by considering FCG in a bonded double-overlap joint subjected to an industry-standard, combat-aircraft flight-load fatigue-cycle spectrum (i.e. FALSTAFF).

AB - The present paper shows that the variability in the cyclic fatigue crack growth (FCG) rate in structural adhesives that is frequently observed in laboratory test results can be captured by using a Hartman-Schijve methodology. To this end the Hartman-Schijve equation has been used to access an 'upper-bound' FCG rate curve that (a) encompasses all the experimental data, (b) provides a conservative, 'worst-case' FCG rate curve, and (c) accounts for the experimental scatter that is frequently seen under fatigue loading. The importance of allowing for the variability in the measured FCG rate is illustrated by considering FCG in a bonded double-overlap joint subjected to an industry-standard, combat-aircraft flight-load fatigue-cycle spectrum (i.e. FALSTAFF).

KW - CFRP

KW - Composites

KW - Fatigue

KW - Fracture mechanics

KW - Modelling

KW - Service-life

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U2 - 10.1016/j.prostr.2020.10.044

DO - 10.1016/j.prostr.2020.10.044

M3 - Conference Paper

AN - SCOPUS:85099799984

VL - 28

SP - 370

EP - 380

BT - Procedia Structural Integrity

PB - Elsevier

T2 - Virtual European Conference on Fracture 2020

Y2 - 29 June 2020 through 1 July 2020

ER -

A means for industry to determine the economic life of bonded joints under representative operation flight loads

Abstract

Conference

Keywords

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