. The Bell System technical journal . various stresses are then obtained by varying the amount ofdeflection of the end of the specimen by adjustment of the rollerbearing that operates the reciprocating bar. Fatigue Endurance Results The curves shown on Fig. 4 are for high brass sheet annealed androlled four and ten numbers hard. Figs. 5, 6, 7 and 8 give similarresults for alloy G brass, nickel silver, phosphor bronze and Everdurrespectively for annealed material and rolled four and ten B. & numbers hard. Fig. 9 gives the fatigue results for the alpha FATIGUE STUDIES OF NON-FER
. The Bell System technical journal . various stresses are then obtained by varying the amount ofdeflection of the end of the specimen by adjustment of the rollerbearing that operates the reciprocating bar. Fatigue Endurance Results The curves shown on Fig. 4 are for high brass sheet annealed androlled four and ten numbers hard. Figs. 5, 6, 7 and 8 give similarresults for alloy G brass, nickel silver, phosphor bronze and Everdurrespectively for annealed material and rolled four and ten B. & numbers hard. Fig. 9 gives the fatigue results for the alpha FATIGUE STUDIES OF NON-FERROUS SHEET METALS 583 60 50 2 40 X a. 30 A = THREE SPECIMENS UNBROKEN - 0- >c^ n o ANNEALED MATERIAL A 4N0SHARD n 10 CO ■ «o ^20CO ^-^ ^ >-^ - ^> ^.m a- D 0 O ^ VT ^ ,, _. _ zii: 100 Q. C ^^ 0* 10* 10^ I0« NUMBER OF REVERSALS Fig. 4—Relation of Fibre Stress to Reversals, High Brass Sheet, No. 24B. & S. Gauge. 60 50 2 40 30 20 10 A= 3 SPECIMENS REMOVED AT117,000,000 REVERSALS o ANNEALED MATERIAL A a 10. 10* 10^ NUMBER OF REVERSALS Fig. 5—Relation of Fibre Stress to Reversals, Alloy G Brass Sheet, No. 24 B. & S. Gauge. 584 BELL SYSTEM TECHNICAL JOURNAL 60 50 40 Y?. 30 S 20
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
