Identifying engineering faults is the organised approach to discovering the reason behind a breakdown in a part, system, or material. These breakdowns are usually linked to material issues or conditions during use. Specialists use tested methods to examine what failed, when it failed, and why, in order to prevent similar issues from reoccurring.
Understanding Technical Investigations
An investigation aims to review failure mechanisms under specific loads, settings, or environments. It is used across sectors including energy, infrastructure, and transport. Investigators collect measurements, inspect the failed parts, and examine the data in context with design expectations. This approach enables technical insight that can support future engineering decisions.
Steps in the Analysis Process
- Compile background information such as performance logs and installation records
- Inspect the component visually to find wear patterns, cracks, or misalignment
- Carry out metallurgical testing to examine grain boundaries or defects
- Evaluate tensile properties, contamination, or stress profiles
- Match test outcomes with the expected load path and material limits
- Report the failure cause, contributing factors, and recommendations for changes
engineering failure analysis
Where Failure Analysis Is Used
Failure reviews are carried out in sectors such as aerospace, nuclear, automotive, and rail. For example, a fractured pipe may require fracture surface analysis, or a collapsed beam may need calculations based on loading conditions. The analysis doesn’t only guide repair—it often leads to updates in material use that reduce cost and improve safety.
How Failure Analysis Supports Operations
These investigations help stop repeat incidents, limit equipment downtime, and contribute to better engineering decisions. They also support compliance with standards and provide technical records useful in claims or audits. Most importantly, they allow engineering teams to improve part selection based on real-world data.
Frequently Asked Questions
Why do faults get investigated?
Triggered by breakdowns, performance loss, or unexpected behaviour.
Who runs the investigation?
Experienced engineers in materials, design, or structural testing lead the process.
What equipment helps with analysis?
Microscopes, spectrometers, modelling software, and force measurement tools may be used.
How long does a typical case take?
The duration depends on how complex the failure is. It could take a few days or a few weeks.
What happens after analysis is complete?
Evidence-based reporting, useful for technical teams, insurers, and legal review.
What to Remember
Engineering failure analysis helps improve future performance by understanding what caused past issues.
Visit GBB’s site to learn more about professional engineering investigations.