Batam, 26 February 2025 – PT. Hi Test, a leading provider of advanced testing and inspection services in Indonesia, has announced the successful completion of Crack Tip Opening Displacement (CTOD) testing for critical components in both wind farm and oil & gas plant projects. This milestone underscores the company’s commitment to ensuring the highest standards of safety, reliability, and quality in the energy sector.
CTOD testing is a critical procedure used to evaluate the fracture toughness of materials, particularly in high-stress environments. For wind farm projects, this testing ensures that the materials used in Leg Jacket, can withstand dynamic loads and harsh environmental conditions over their operational lifespan, and the value of CTOD is used for ECA ( Engineering Calculation Assessment ) calculation is proposed. In the oil & gas sector, CTOD testing is essential for verifying the integrity of pipelines, pressure vessels, leg jackets, and other critical infrastructure exposed to extreme pressures and corrosive environments.
The CTOD testing was conducted at PT. Hi Test’s state-of-the-art laboratory facility, which are equipped with cutting-edge technology (Wire Cutting), Dynamic Machines and staffed by highly skilled engineers and technicians. The company was accredited with international certification bodies KAN – MRA (ISO 17025) to ensure that the testing procedures adhered to global standards, including those set by the American Society for Testing and Materials (ASTM E1820) and the International Organization for Standardization (ISO) ISO 12135, ISO 15653, BS 7448.
Wind Farm Project: Ensuring Reliability in Renewable Energy
In the wind farm project, PT. Hi Test focused on testing materials for Legs Jacket components that are subjected to cyclic loading and environmental stressors such as wind, rain, and temperature fluctuations. The successful CTOD testing results confirm that the materials meet the stringent requirements for fracture toughness, ensuring the long-term reliability and safety of the wind turbines.
“The CTOD test can be used to evaluate the quality of the weld, particularly in terms of its resistance to crack propagation”, said Laboratory Manager of PT. Hi Test. “By conducting CTOD testing, we are not only supporting the development of sustainable energy infrastructure but also ensuring that these projects are built to last, even in the most challenging conditions.”
The wind farm project, located in Taiwan, North Sea, is expected to generate Hundred megawatts of clean energy, powering thousands of homes and reducing carbon emissions by 403,200 tons annually. The successful CTOD testing is a critical step toward the project’s completion, which is scheduled for 2024.
Oil & Gas Plant Project:
For the oil & gas plant project, PT. Hi Test performed CTOD testing on materials used in pipelines and riser. These components are critical for the safe operation of oil & gas facilities, where failures can lead to catastrophic consequences. The testing confirmed that the materials possess the necessary fracture toughness to withstand the high pressures and corrosive environments typical of oil & gas operations.
“Safety is paramount in the oil & gas industry,” said Azmi, Technical Manager of Testing Services at PT. Hi Test. “Our CTOD testing ensures that the materials used in these high-risk environments are capable of performing reliably over their intended lifespan, minimizing the risk of failures and enhancing overall safety.”
The oil & gas plant project, located in Kalimantan, is part of a broader initiative to expand Indonesia’s energy infrastructure and support the country’s growing energy needs. The successful completion of CTOD testing marks a significant milestone in the project’s development, paving the way for its timely completion and commissioning.
A Commitment to Excellence
PT. Hi Test’s successful CTOD testing for both wind farm and oil & gas plant projects highlights the company’s expertise in advanced materials testing and its commitment to supporting world and Indonesia’s energy sector. By ensuring the integrity and reliability of critical infrastructure, PT. Hi Test is playing a vital role in the development of sustainable energy solutions and the safe operation of oil & gas facilities.
“We are proud to contribute to these important projects,” said Mr. Suhadi, CEO of PT. Hi Test. “Our team’s dedication to excellence and our investment in advanced testing technologies enable us to deliver results that meet the highest international standards. We look forward to continuing our work with partners in the renewable energy and oil & gas sectors to build a safer, more sustainable future.”
About PT. Hi Test
PT. Hi Test is a leading provider of testing services in Indonesia. With a focus on quality, safety, and innovation, the company supports a wide range of industries, including energy, construction, and manufacturing. PT. Hi Test is committed to delivering world-class services that help clients achieve their operational and sustainability goals.
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PT. Hi Test
CTOD with SENB testing steps
CTOD (Crack Tip Opening Displacement) and SENB (Single Edge Notch Bend) testing are used to evaluate the fracture toughness of materials. Here are ten general steps you might follow for conducting a SENB test with CTOD measurements:
1. Sample Preparation: Fabricate the SENB specimen according to the required dimensions and standards (such as ISO 12135, ISO 15653 , ASTM 1820 or similar). Ensure that the notch is accurately machined.
2. Notch Creation: Machine a sharp notch at the centre of the specimen. The notch should have a specific depth and length as per the testing standard.
3. Measurement of Initial Dimensions: Measure and record the dimensions of the specimen, including length, width, thickness, and notch depth.
4. Mounting the Specimen: Secure the specimen in a testing machine. Ensure it is aligned properly to avoid any eccentric loading during the test.
5. Loading Setup: Connect the loading apparatus to the specimen. This typically involves using a bending jig to apply a load at a controlled rate.
6. Initial Load Application: Gradually apply the load to the specimen while monitoring the displacement. Use a suitable load cell to measure the applied load.
7. Displacement Measurement: Employ a displacement gauge or extensometer to measure the crack opening displacement (COD) accurately at the crack tip.
8. Data Recording: Record the load and corresponding displacement values continuously until the specimen fails. This may involve automatic data logging.
9. Fracture Examination: After the test, visually examine the fracture surface to evaluate the mode of failure and measure the crack length.
10. Analysis and Reporting: Analyse the data to calculate the CTOD values from the load-displacement curve. Prepare a report detailing the methodology, results, and any observations from the test.
These steps provide a framework for conducting SENB testing with CTOD measurements, but always refer to specific standards or guidelines relevant to your material and testing conditions for precise requirements.
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