The Applied Technical Services Family of Companies (FoC) performs ASTM D747 testing to determine the flexibility of plastics. Modern industries are highly dependent on plastics and different applications will require plastic materials to have specific physical and mechanical properties. Our polymer testing experts evaluate plastic materials which enables our clients to make informed decisions regarding a materialโs end-use and potential room for improvement.
What is ASTM D747?
The American Society for Testing and Materials developed ASTM D747 as a guide for experts using a cantilever beam to determine a plasticโs apparent bending modulus. During the test procedure, a technician deflects a cantilevered sample through a predetermined angle to measure the corresponding force. They then use the specimen geometry, deflection angle, and applied moment to calculate the apparent bending modulus, which represents the materialโs resistance to bending.
Why is It Important to Conduct Bend Tests on Plastics?
Plastics are an important part of modern life for manufacturers and consumers alike. Depending on the tasks, plastics might need prioritize certain attributes, such as having either minimal or very forgiving level of flexibility. Bend tests offer an effective way for manufacturers to ensure that a material can properly support the loads expected for its intended application. There are numerous benefits to determining the flexibility of materials because the information collected can help manufacturers do the following:
- Improve material durability, reliability, and longevity
- Make educated choices for material selection
- Optimize manufacturing process
- Maintain adequate levels of quality control
- Identify and resolve product defects
Failure to properly determine a materialโs flexibility could lead to serious consequences, such as:
- Poor product performance, potentially leading to catastrophic failure
- Material selection issues leading to product redesign and delays
- Safety concerns, leading to possible litigation and fines
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