The root causes of pipeline structural failures can be varied and complex, but some common causes of failure fall into five general deficiencies categories:
1. DESIGN
Poor design decisions or inadequate consideration of loading conditions, material properties, and other factors such as environmental conditions, material limitations, etc., can lead to structural failures.
Mistakes during the manufacturing process, such as defects in materials or workmanship, can compromise the integrity of a structure.
Failing to conduct adequate testing or verification of the structure's design and performance can lead to failures.
2. CONSTRUCTION
Poor workmanship, improper installation, or using substandard materials during construction can weaken the structural integrity.
3. DEFECTIVE MATERIALS
Using materials unsuitable for the intended application or with defects or imperfections can lead to structural failures.
4. OPERATION
Corrosion caused by environmental factors, such as moisture, chemicals, or salt, can weaken the structure over time.
Failing to consider environmental factors, such as temperature, humidity, or seismic activity, can lead to structural failures.
Exceeding the design load or using the structure for purposes other than intended can lead to failure.
Structures can deteriorate over time due to natural ageing processes, such as fatigue, creep, or corrosion/Erosion.
Human mistakes, such as misinterpreting design data or incorrect installation procedures, can contribute to structural failures.
Fires or explosions can cause structural failures by damaging the structure or compromising its integrity.
![Figure 1: Demonstration of what structural damage to a pipeline may cause]()
Figure 1: Demonstration of what structural damage to a pipeline may cause
5. MAINTENANCE
Failing to perform regular maintenance or inspections can lead to structural failures.
It's essential to identify and address these causes to prevent future failures and ensure the safety and integrity of structures.
![Figure 2: Statistical data: causes of pipeline failures]()
Figure 2: Statistical data: causes of pipeline failures
Stay tuned for the second part of the FAQ series.
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Related article(s):
Unravelling Structural and Pipeline Integrity: FAQ Series https://www.twi-global.com/locations/middle-east/news-and-events/news/2024/structural-and-pipeline-integrity-a-six-part-faq-series, 21 May 2024