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Fatigue testing

Fatigue testing is a specialised form of mechanical testing that is performed by applying cyclic loading to a coupon or structure. These tests are used either to generate fatigue life and crack growth data, identify critical locations or demonstrate the safety of a structure that may be susceptible to fatigue. Fatigue tests are used on a range of…

Full scale fatigue tests, Coupon tests & Notable fatigue tests

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Overview

Coupon tests

Instrumentation

Full scale fatigue tests

Notable fatigue tests

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Fatigue testing

Nodes59
Edges58
Triples36
Avg. degree1.97
Density0.033898
Components1

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Fatigue testing

Top relations

related to Further reading · 6
Fatigue testing → Archived, Boyer, June, PDF, Retrieved, Survival
related to External links · 5
Fatigue testing → Boeing, July, May, Retrieved, YouTube
is a · 1
Fatigue testing → specialised form of mechanical testing that is performed by applying cyclic loading to a coupon or structure

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Important terminology

fatigue test used structure loads tests may crack aircraft typically applied coupon loading life load testing growth article certification also

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Fatigue testingis aspecialised form of mechanical testing that is performed by applying cyclic loading to a coupon or structure0.90text
automobilesinstance ofFatigue tests are used on a range of components from coupons through to full size test articles0.80text
aircraft.Fatigue tests on coupons are typically conducted using servo hydraulic test machines which are capable of applying large variable amplitude cyclic loadsinstance ofFatigue tests are used on a range of components from coupons through to full size test articles0.80text
load cellsinstance ofInstrumentation0.80text
strain gaugesinstance ofInstrumentation0.80text
displacement gauges are installed on the structure to ensure the correct loading has been appliedinstance ofInstrumentation0.80text
holesinstance ofPeriodic inspections of the structure around critical stress concentrations0.80text
fittings are made to determine the time detectable cracks were foundinstance ofPeriodic inspections of the structure around critical stress concentrations0.80text
to ensure any cracking that does occurinstance ofPeriodic inspections of the structure around critical stress concentrations0.80text
does not affect other areas of the test articleinstance ofPeriodic inspections of the structure around critical stress concentrations0.80text
the undercarriage.Airworthiness standards generally require a fatigue test to be carried out for large aircraft prior to certification to determine their safe lifeinstance ofany unbalanced structural loads are typically reacted out to the test floor through non-critical structure0.80text
the rate of growth of a fatigue crack that can be used with crack growth equations to predict the fatigue lifeinstance ofCoupon testsFatigue tests are used to obtain material data0.80text

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