We Have More Than 10 Years of Experience.
top-ban
  1. HOME > News

What is the difference between the three -point anti -bend and four -point anti -bend of the tensile

2022-08-17

Under normal circumstances, it is suitable for mobile phone mirror, flat materials, etc.; generally three -point bending, but a small number of customers require four bending to test. Now we have a difference between three -point bend and four -point bending of the tensile test machine.

Generally, there are two loading stress methods, namely three -point bending and four -point anti -bend. Different loading methods obtained different bending strengths. The loading methods of the two are different. The loading method is simple. Due to the concentration of loading, the bending distribution is uneven, the defects in somewhere may not be displayed, and the effect is not achieved. , Less used in industrial production.

Three -point anti -bending definition:

A test method for measuring the bending performance of the material. Put the strip sample in the bending test fixture to form a simplified beam form. The distance between the distance between the two lower support points of the support sample can be adjusted, and there is only one load point above the sample.

Four points of anti -bending definition:

A test method for measuring the bending performance of the material. Put the strip sample in the bending test fixture to form a simplified beam form. The distance between the distance between the two lower support points of the sample of the sample can be adjusted. There are two symmetrical loading points above the sample.

Bending strength: The zUI large bending power reached before the sample bending breaks, according to the loading method and the shape of the sample, the bending strength has different calculation methods. For rectangular samples with a width of B, height of H

Three -point anti -bend formula: s 3fl/2BH SUP2;

Four -point anti -bend formula: s fl/bh sup2; (the United States Standard)

Our company specializes in research and development, production, production, sales, and sales of three -point bending and four -point anti -bending test machines. Welcome to the majority of companies to learn about the inspection. If you need it, you can consult

What Can I Do For You?

You can Send Message or email info@qinsun-lab.com to us, we will reply tu you within 24 hours.Now tell us your need,there will be more favorable prices!

toTop