Question 15 (Textile Technology & Fibre Science)
The constant-rate-of-extension type tensile tester is NOT used for
| (A) | Tongue tear test |
| (B) | Wing rip tear test |
| (C) | Elmendorf tear test |
| (D) | Trapezoid tear test |
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Frequently Asked Questions | FAQs
What is the difference between CRE and CRT ?
In the context of material testing, CRE and CRT are two different methods used to measure the mechanical properties of materials.
CRE stands for “Constant Rate of Extension,” which is a method used to measure the tensile properties of materials. In this method, a material sample is subjected to a constant rate of elongation or extension until it reaches its breaking point. The force required to extend the material is measured and used to calculate its tensile strength, elongation, and other properties.
CRT stands for “Constant Rate Traverse,” which is a method used to measure the tear strength of materials. In this method, a sample is cut with a small notch and then subjected to a constant force that is applied perpendicular to the notch. The force required to tear the material is measured and used to calculate its tear strength.
Therefore, the main difference between CRE and CRT is that they are used to measure different mechanical properties of materials. CRE is used to measure tensile properties such as strength and elongation, while CRT is used to measure the tear strength of materials.