Determination of breaking force and elongation of textile fabrics is usually standardised using universal testing machines. The most commonly used test standard is ASTM D5034.
To determine the breaking force and elongation of textile fabrics, the following methods can be used. 1:
1. BREAKING STRENGTH DETERMINATION METHOD: This is a commonly used method that uses a tensile testing machine to measure the breaking strength of a material under stress. Firstly, a sample of textile fabric is fixed between two fixtures and then the stress is gradually increased until the sample breaks. The maximum stretch that the sample is subjected to before it breaks is measured and is known as the breaking strength. This test provides the endurance of the textile fabric in the vertical direction.
2. Elongation Measurement: Elongation is the percentage by which a material is able to stretch before it breaks. In order to measure the elongation of a textile fabric, an elongation measuring machine or a tensile testing machine can be used. The sample is clamped between two fixed fixtures, the stress is gradually increased and the change recorded. When the sample breaks, the difference between the length of the sample before the break and the length of the sample after the break is measured and the elongation is calculated.
It is worth noting that the breaking strength and elongation of textile fabrics may be affected by a number of factors, such as fibre type, textile structure and treatment. Therefore, when making measurements, one should ensure that the appropriate sample size and test are selected to obtain accurate and reliable results.
It is important to note that the exact test procedure may vary depending on the specific test standard used. Different standards may specify different machine settings, sample sizes or reporting requirements. It is therefore important to refer to the relevant test standard (e.g. ASTM D5034) for detailed guidance and specific test requirements.
By performing these tests, the breaking force and elongation of textile fabrics can be determined, providing valuable information about their strength, stretchability and overall performance characteristics. This information is important for quality control, product development and to ensure that textile fabrics are suitable for a wide range of applications.