cotter joint original

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Cotter joint FIG 01: ASSEMBLED COTTERED JOINT

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Page 1: Cotter Joint Original

Cotter joint

FIG 01: ASSEMBLED COTTERED JOINT

Page 2: Cotter Joint Original

Cotter joint – modes of failure

FIG 02: STEEL SPIGOT BREAKING IN TENSION OUTSIDE THE JOINT

F

F

TENSIO

N

FAIL

URE

Page 3: Cotter Joint Original

FIG 02: STEEL SPIGOT BREAKING IN TENSION OUTSIDE THE JOINT

WROUGHT IRON ROD BREAKING IN TENSION OUTSIDE THE JOINT

FIG 05: SPIGOT BREAKING IN TENSION ACROSS SLOT

Cotter joint – modes of failure

TENSIO

N

FAIL

URE

Page 4: Cotter Joint Original

FIG 07: SOCKET BREAKING IN TENSION ACROSS SLOT

TENSIO

N

FAIL

URE

Cotter joint – modes of failure

Page 5: Cotter Joint Original

FIG 06: DOUBLE SHEARING OF COTTER PIN

FIG 09: DOUBLE SHEARING OF SOCKET END

SHEAR

FAIL

URE

Cotter joint – modes of failure

Page 6: Cotter Joint Original

Cotter joint – modes of failure

FIG 11: SHEARING AWAY OF THE COLLAR IN THE SPIGOT

FIG 12: SHEARING AWAY OF SOCKET (IF dw < dl)

FIG 10: SHEARING OF SPIGOT END

SHEAR

FAIL

URE

Page 7: Cotter Joint Original

FIG 08: CRUSHING OF COTTER PIN AGAINST SOCKET

BEARIN

G

FAIL

URE

FIG 04: CRUSHING OF COTTER PIN AGAINST ROD END

Cotter joint – modes of failure