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Inspection of welded joints attaching the
front and rear outriggers on a Triumph Vitesse.
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- 1. Introduction
- 1.1
- A request was received for an examination to be carried
out on the subject vehicles welded repair joints.
- 1.2
- The inspection requested, was to determine the fitness
for purpose of the joints.
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- 2. Inspection Results
- 2.1
- The repair positions on the outriggers are shown on Plates
01 to 06. All repairs appeared to have been carried out using
shielded arc welding.
- 2.2
- The front outriggers had been sleeved onto abutments on
the chassis and the joints made by fillet welding where accessible.
The static strength of the joints was considered to be adequate
on both sides. However, as the dynamic reactions from the
anti-roll bar from direct vertical loads and when it acts
as a torsion spring will subject the joint to fatigue conditions
the quality of the bottom transverse welds could be inadequate.
- 2.3
- The repair methods used on the rear outrigger attachments
were similar to those used on the front. Vertical angle brackets
had been used in addition on the inner and outer faces of
the nearside member. The strength of the joints was considered
to be adequate.
- 3. Conclusions
- 3.1
- It is considered that the repair joints attaching the front
and rear outriggers were 'fit for purpose' except for the
fatigue resistance of the front members to loads applied by
the anti-roll bar in service if the car is driven hard on
rough roads.
- 3.2
- It is also considered that the front joints can be modified
to make them more road worthy by introducing longitudinal
straps across the welds, one on each side of the longitudinal
folded and welded outrigger joints on each member. The straps
must be attached by fillet welding along the full length of
their sides and edges.
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