BS 7448 Dynamic and Static Testing Machines

BS 7448 Dynamic and Static Testing Machines (Fracture mechanics toughness - Dynamic/Fatigue Testing Machines) BS 7448 Detailed Test Methods and Machine Requirements BS 7448 is a British standard for fracture mechanics toughness testing. It is a multi-part document, primarily used to determine the fracture toughness parameters (stress intensity factor K, critical crack tip opening displacement CTOD, critical J integral) of metallic materials and welded joints. It is widely used in the safety assessment of critical welded structures such as offshore platforms, oil and gas...

2026-01-08Read more...

ASTM E1820 Dynamic and Fatigue Testing Machines

ASTM E1820 Dynamic and Fatigue Testing Machines (Key Specifications, Mga Aplikasyon, and Compliance Guidelines) In the field of material science and engineering, ensuring the reliability and safety of metallic materials in extreme service conditions is paramount. Fracture toughness, a critical parameter measuring a material’s resistance to crack propagation and fracture, directly impacts structural integrity in industries such as aerospace, automotive, energy, and defense. The ASTM E1820 standard, developed by ASTM International, serves as the gold standard for measuring the fracture toughness...

2026-01-08Read more...

ASTM E399 Fracture Toughness Test Method

ASTM E399 Fracture Toughness Test Method (ASTM E399 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials)   Experience excellence at VTS, where we engineer testing machines that redefine industry standards. Our commitment to precision and innovation ensures superior performance and reliability, meeting and exceeding your testing needs. Compliant with international standards like ASTM E399, our solutions guarantee top-tier quality and efficiency.   Why is ASTM E399 considered the "lifeline" for the safety of metallic materials? In critical fields such as aerospace, nuclear...

2026-01-06Read more...

Charpy Impact Tester

Charpy Impact Tester/Testing Machine （Impact energy: 300J, 450J, 600J, 750J)   The is a standardized test method for determining the toughness of materials under impact loads, widely used in the performance evaluation of materials such as metals and plastics. Its core standards include ISO 148-1 (international standard), ASTM E23 (Pamantayan ng Amerikano), and GB/T 229 (Chinese standard). The following are key points: Test Principle: A pendulum impacts a notched standard specimen, measuring the energy absorbed at fracture (KV or KU value), typically in Joules...

2025-11-18Read more...

How to Choose the Right Tensile Testing Machine?

Tensile Testing Machine/Universal Testing Machines How to Choose the Right Tensile Testing Machine? When selecting a tensile testing machine, multiple factors must be considered. If you are upgrading quality and functionality, or deciding to bring material testing in-house, you need to ensure the machine you purchase meets your requirements. Typically, you should choose the appropriate Universal Testing Machines based on the test type (e.g., makunat, compression, fatigue, atbp.) and the ASTM or ISO standards applicable to your target market. When selecting...

2025-11-13Read more...

Test method for compressive strength of fine ceramics

Test method for compressive strength of fine ceramics Test method for compressive strength of fine ceramics (advanced ceramics, advanced technical ceramics) With the growing demand for high-performance materials in modern industry, fine ceramics have gradually become a hot area of ​​material science research due to their unique mechanical properties and excellent chemical stability. Compared with traditional ceramics, fine ceramics can achieve precise control of chemical composition, microstructure and grain size by strictly controlling raw material selection and manufacturing process, thereby meeting...

2025-03-24Read more...

Fiber-reinforced plastics composites — Determination of tensile properties

Fiber-reinforced plastics composites - Determination of tensile properties Tensile test methods for fiber reinforced plastics Fiber reinforced plastics (FRP) have been widely used in aerospace, automobile manufacturing, construction, sports equipment and other fields due to their excellent mechanical properties, light weight, high strength and good corrosion resistance. Gayunpaman, the mechanical properties of FRP depend largely on the interfacial bonding strength between its internal fibers and the matrix material and the orientation distribution of the fibers. Therefore, accurate mechanical property testing of...

2025-02-08Read more...

Silicon wafer bending strength testing

Recently, Andy Li received silicon wafer samples from customers and needed to test their bending strength. To meet the customer's testing needs, the VTS measurement and control technical team developed a set of technical solutions for it. This included both testing equipment and methods. Silicon wafer bending strength testing Test Principle The principle of the silicon wafer bending strength test is to apply a gradually increasing bending load to the sample. By doing so, we can determine the maximum bending stress...

2024-12-02Read more...