Drop Weight Tear Test (DWTT) ?

Drop Weight Tear Test Method

It is an experimental method used to evaluate the resistance to cracking and fracture characteristics of a material. This test is commonly employed to assess the quality of steel pipeline systems, welded joints, and other structural components. The test results provide valuable information for material design, production quality control, and damage analysis.

How is the Drop Weight Impact Test (DWTT) done?

The DWT test involves impacting a pre-notched specimen with a specific weight to examine the initiation and propagation of cracks. The test outcome yields insights into fracture energy, crack path, and other parameters, contributing to the understanding of material crack resistance and fracture behavior.


How is Sample Conditioning Made?

Prior to the Drop Weight Tear Test (DWT), the specimen intended for testing needs to be conditioned at a specific temperature. Labo Circulators possess the capability to condition within the range of -190°C to +250°C. The specimens placed inside Labo circulators are conditioned at a specific temperature with a precision of 0.01°C for a predetermined duration. This ensures uniform heating of the specimen and enhances the reliability of the test results.

The specimen conditioning process typically involves hours or days of keeping the specimen at a specific temperature. This duration is necessary for the specimen to achieve thermal equilibrium and uniform heating.

For detailed information about the Labo Circulator models you need, you can reach our Labo Iron/Steel Sector Brochure and can contact our project engineers from at info@labo.com and +90 216 329 11 77.

*Specific details and methods for DWT testing and temperature conditioning may vary depending on applied standards, test procedures, and the equipment used.