Weld Failure Analysis: From Fracture to Root Cause
A weld failure is a systems failure, not just a broken joint. Something in the chain of design, material, procedure, execution, or service condition let go, and the fracture is only the last link. Fix the fracture without finding what put it there and you’ll see it again.
The broken joint is the symptom, not the cause
It’s tempting to look at the crack, blame the weld, and move on. But the weld failed for a reason that sits further back, in a decision, a material, a procedure, or a load nobody accounted for. That’s the reason worth finding, because that’s the one that stops it happening on the next unit, or the next site.
How I work it
I investigate weld and fabrication failures across industries and materials. I work from the evidence. The fracture surface. The metallurgy. The weld and its heat affected zone. The procedure and qualification records. The material certificates. The service history.
I go past the immediate cause to the root factors, the ones that actually need to change. Then I give you findings you can use, whether that’s to prevent recurrence, inform a repair, or support a claim or dispute that follows the failure. Clear, evidence based, and defensible.
What you walk away with
- A documented investigation from immediate cause to root cause
- Findings grounded in metallurgy, records, and service conditions
- Clear actions to prevent recurrence
- Evidence that stands up if the failure turns into a claim
Where it applies
Structural, pressure equipment, pipework, and plant across AS/NZS 1554, AS 1210, AS 3992, AS 4041, ASME B31.3, and the ASME BPVC. Carbon and low alloy steels, stainless, duplex, and dissimilar joints. Fatigue, brittle fracture, cracking, corrosion related failures, and the ones where the cause isn’t obvious.
If the failure is heading to dispute or litigation, move to Expert Witness. To stop recurrence systemically, build it into a Welding Management System. For an active production defect rather than an in-service failure, see Welding Issue Resolution.
FAQ
What’s the difference between failure analysis and issue resolution?
Issue resolution deals with a defect showing up in production now. Failure analysis investigates something that has already failed, often in service, to establish why and to support prevention or a claim.
Can your findings be used in an insurance claim or dispute?
Yes. I document the investigation to stand up to scrutiny. Where it goes further, the same work supports formal expert evidence.
What do you need to start?
The failed component wherever possible, plus the records. Procedures, qualifications, material certificates, inspection history, and service conditions. The more of the chain I can see, the sharper the root cause.