Introduction to Aircraft Structural Analysis (Elsevier Aerospace Engineering)

332 CHAPTER 10 Materials Thesecompositeshavenowbeenreplacedbycarbon-fiber-reinforcedplastics(CFRP),whichhave similar properties ...

10.7 Properties of Materials 333 A composite (fiberglass and aluminum) is used in the tail assembly of the Boeing 777, while the ...

334 CHAPTER 10 Materials Plasticity Amaterialisperfectlyplasticifnostraindisappearsaftertheremovalofload.Ductilematerialsare ela ...

10.7 Properties of Materials 335 Fig.10.2 Standard cylindrical test piece. overthegivengaugelength.Incrementsofloadareappliedand ...

336 CHAPTER 10 Materials normally cylindrical and are limited in length to eliminate the possibility of failure being caused by ...

10.7 Properties of Materials 337 Fig.10.4 Bending test on a beam, single load. beam, producing zero shear force and constant ben ...

338 CHAPTER 10 Materials Otherbendingtestsaredesignedtomeasuretheductilityofamaterialandinvolvethebendingofabar aroundapin.Thean ...

10.7 Properties of Materials 339 Fig.10.6 Brinellhardness test. inmm^2 iscalledtheBrinellhardnessnumber(BHN).InFig.10.6,ifDisthe ...

340 CHAPTER 10 Materials Fig.10.7 Izod impact test. Fig.10.8 Charpy impact test. Impacttestsmeasuretheabilityofmaterialstowithst ...

10.7 Properties of Materials 341 Fig.10.9 Stress–strain curve for mild steel. Low Carbon Steel (Mild Steel) Anominalstress–strai ...

342 CHAPTER 10 Materials Fig.10.10 “Necking” of a test piece in the plastic range. Fig.10.11 “Cup-and-cone” failure of a mild st ...

10.7 Properties of Materials 343 Fig.10.12 “Barrelling” of a mild steel test piece in compression. Fig.10.13 Stress–strain curve ...

344 CHAPTER 10 Materials Incompressiontestsonaluminumanditsductilealloys,similardifficultiesareencounteredtothose experiencedwit ...

10.7 Properties of Materials 345 Fig.10.16 Stress–strain curve for a fiber composite. andaluminumalloy.However,thefibersthemselv ...

346 CHAPTER 10 Materials Fig.10.17 Strain hardening of a material. Fig.10.18 Typical creep curve. 10.7.4 Creep and Relaxation We ...

10.7 Properties of Materials 347 metals, such as zinc and lead, creep occurs over a relatively short period of time, whereas mat ...

348 CHAPTER 10 Materials Fig.10.20 Alternating stress in fatigue loading. Fig.10.21 Stress–endurance curves. Inmanypracticalsitu ...

Problems 349 Problems.............................................................................................. P.10.1 Descr ...

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CHAPTER 11 Structural Components of Aircraft..................................................... Aircraftaregenerallybuiltupfro ...