Efesto EPS
Full-Scale Resonant Fatigue Testing for Drilling Components
Independent, patented, and precision-engineered fatigue testing services for drill pipes, collars, and tubular connections — at real scale.
The Challenge
Are You looking to validate the fatigue life of your drilling components?
Fatigue failure in tubular components is a critical risk — and one that standard lab tests often fail to replicate accurately.
Most testing facilities work with scaled-down samples that don’t reflect real-world stress conditions. The result? Uncertain data, and risk in the field.
If you need reliable, independent fatigue testing on actual drill pipes, drill collars, or tubular connections — you’re in the right place.
HOW IT WORKS
Full-Scale Testing. Real Conditions. Reliable Data
We use resonance-based fatigue testing to replicate the cyclic bending loads
experienced by tubular components during actual drilling operations.
Resonant Fatigue Technology
An eccentric rotating mass induces the specimen to vibrate at its first resonance frequency. At ~25 Hz, 1 million fatigue cycles complete in approximately 11 hours.
Detailed Technical Report
Every test delivers fatigue life data, S-N curves, load amplitude history, and fracture analysis — with calibrated strain gauges and laser displacement sensors.
Customizable Protocols
Protocols tailored to your geometry, load conditions, and requirements — including internal pressurization and fatigue block loading sequences.
OUR MACHINES
Two advanced resonant testing benches
Available at Efesto EPS, the engineering laboratory of ACTA,
for experimental investigation and prototyping services.
RRTB
Resonant Rotating Test Bench
For drill pipe sections and tubular connections.
Specimen: 4.2 m (14 ft) Outer Diameter Range: 100–180 mm (4–7 in)
Patented variable bending load amplitude.
RITB
Resonant In-Plane Test Bench
For large-section specimens such as drill collar connections.
Specimen: 1.6 m (5.25 ft) Outer Diameter Range: 150–230 mm (6–9 in)
WHY CHOOS US
Why leading drilling companies choose Efesto EPS
Third-Party independence
Unbiased results you can trust
Efesto EPS is not a component manufacturer. Our reports are produced by an independent laboratory — giving you data you can rely on for engineering decisions, procurement, and compliance.
Patented Technolog
Innovation that sets us apart
The RRTB features a patented variable bending load system, allowing for fatigue block loading sequences that better reflect real operational conditions.
Full-Scale Testing
No compromises on scale
We test the actual component, not a miniaturized model. Full-scale specimens mean full-scale results: geometry, material behavior, and connection dynamics all preserved.
Academic-Industrial Partnership
Backed by University of Pisa (Italy)
Developed in collaboration with the Department of Civil and Industrial Engineering at the University of Pisa, combining rigorous academic methodology with industrial application.
Custom Testing Capability
Your test, your requirements
From internal pressurization to non-standard geometries and load sequences, our team works with you to design a test that answers your specific engineering questions.
TRACK RECORD
A Track Record Built on Precision and Results
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Efesto EPS is the experimental testing laboratory of ACTA Srl — an advanced engineering company participated by the University of Pisa, with over two decades of experience in R&D, mechanical testing, and industrial prototyping across the energy, food, chemical, and nuclear sectors.
Our fatigue testing methodology has been developed and refined over years of real-world application, with continuous calibration improvements and a consolidated measurement protocol that ensures the reliability of every result.
Get in touch with our testing team
Tell us about your component and testing requirements. We’ll review your request and get back to you within 48 hours.