Utech Presentation

Stresses Around Pin Loaded Holes in Mechanically Fastened Joints By Neville A. Tomlinson, PhD Howard University Washington DC January 2007

Introduction ,[object Object],[object Object],[object Object],[object Object]

Schematic of Pin joint pin plate Fig 1.

Exaggerated view of deformed hole by rigid pin Fig 3

The contact equation ,[object Object],[object Object],(1) (2) (3)

The contact equation ,[object Object],[object Object],[object Object],(4) (5)

Boundary conditions at the pin-plate interface ,[object Object],[object Object],[object Object],(6) (7) (8) (10) (9)

Intrduction of Friction ,[object Object],[object Object],[object Object],(11) (12) (13)

Displacement field along hole boundary ,[object Object],[object Object],[object Object],(14) (15)

Coefficients of u ,[object Object],(16) (17) (18)

Coefficients of v ,[object Object],(19)

Coefficients of v ,[object Object]

Determination of stress functions ,[object Object],[object Object],(22) (23)

Definition of stress function terms ,[object Object]

Determination of stresses ,[object Object],[object Object],(24) (25) (26)

Stress Transformation ,[object Object],(27)

Complex stresses ,[object Object],(28)

Real stresses ,[object Object],[object Object],(31) (32) (33)

Real stresses ,[object Object]

Stress coefficients ,[object Object]

Stress coefficients ,[object Object],[object Object]

Determination of Stresses ,[object Object],[object Object],[object Object]

Results ,[object Object],Radial stress for plate A ( ±45 s )

Results Shear stress for plate A (±45s )

Results ,[object Object],Tangential or hoop stress for plate A (±45s )

Results ,[object Object],Radial stress for plate E ( [0 2 / ±45] s )

Results ,[object Object],Shear stress for plate E ( [02/±45]s )

Results ,[object Object],Tangential or hoop stress for plate E ( [02/±45]s )

Conclusion ,[object Object],[object Object],[object Object]

Recommendations ,[object Object],[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object],[object Object]

Recommended