Metric units
Joint allowable stress
Shear stress from force
Shear stress from moment
Resulting reduced stress
Strength check
τ red ≤ τ A
Minimum step depth
|
Design of optimum overlap length |
|
|
Anticipates that a joint is designed so that any breakage occurs in the joint itself, and not in the basic material. |
|
|
L opt = max {L min , L 1 } |
|
|
where: |
|
 |
|
Meaning of used variables for metric units:
|
S Us |
Joint strength in tension [MPa] |
|
k S |
Shear safety factor |
|
S Ub |
Tensile strength of basic material [MPa] |
|
F |
Transferred force [N] |
|
d |
Step diameter [mm] |
|
L |
Step depth [mm] |
|
T |
Torque [MPa] |
English units
Joint allowable stress
Shear stress from force
Shear stress from moment
Resulting reduced stress
Strength check
τ red ≤ τ A
Minimum step depth
|
Design of optimum overlap length |
|
|
Anticipates that a joint is designed so that any breakage occurs in the joint itself, and not in the basic material. |
|
|
L opt = max {L min , L 1 } |
|
|
where: |
|
 |
|
Meaning of used variables for metric units:
|
S Us |
Joint strength in tension [MPa] |
|
k S |
Shear safety factor |
|
S Ub |
Tensile strength of basic material [MPa] |
|
F |
Transferred force [N] |
|
d |
Step diameter [mm] |
|
L |
Step depth [mm] |
|
T |
Torque [MPa] |