joint efficiency

joint efficiency

[′jȯint ə‚fish·ən·sē]
(metallurgy)
A numerical value expressed as the ratio of the strength of a riveted, welded, or brazed joint to the strength of the parent metal.

joint efficiency

In welding, the ratio of the strength of a joint to the strength of the base metal; expressed in percent.
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References in periodicals archive ?
The riveted joints could be used but since the plates are weakened at the joint due to the rivet holes the plate thickness should be enhanced by considering the joint efficiency.
The authors calculated and obtained the following mechanical properties from the moment--deformation angle relationship: rotational stiffness K, maximum moment [M.sub.max], deformation angle at the maximum moment [[theta].sub.max], moment at the deformation angle 1/120 rad [M.sub.1/120], strain energy U, and joint efficiency for deformation [[delta].sub.C,max]/[[delta].sub.max], K was obtained by regressing the linear portion of the moment--deformation angle relationship and taking the slope.
This was similar to the result of the joint efficiency for deformation [[delta].sub.C,max]/[[delta].sub.max] obtained from the mechanical test of the joint specimen, and it was shown that the bending deformation of the laminated column was included in the joint specimen deformation.
Most studies on the welding of magnesium alloys have been focused on AZ31 magnesium alloys, and joint efficiency is determined by applying arbitrary tool rotational speed and welding speed.
In the case of the ratio of [omega]/v = 2, welding condition (d) showed a maximum joint efficiency of 92.0%.
FSW produces good joint efficiency especially for dissimilar ones as compared to other welding methods.
yield strength, joint efficiency etc., RS is the rotational speed of the tool in rpm, AF is the Axial force in KN, WS is the Transverse speed in mm/sec and T is the tool geometry.
Dan Booker, global engineering director, propshafts at GKN, says the PX joint not only increases joint efficiency by more that 40%, reduces its size by more than 8%, and cuts weight by greater than 25%, "it improves vehicle NVH levels by reducing backlash in the system."
The joint efficiency defined as the ratio between the strengths of the welded and unwelded tapes, decreases with the draw ratio up to the draw ratio of 8:1 (Fig.
Among the three hardwoods, finger-joints from the low-density Obeche exhibited the highest joint efficiency of 88 percent and wood failure of 61 percent, followed by that from the medium-density Makore of 78 and 29 percent, respectively.
On the basis of joint efficiency and percentage wood failure, RF and ISO glues proved unsatisfactory as a bonding medium in the medium-density Makore and the high-density Moabi.

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