Tensile Testers

What is a Tensile Testing Machine?

A tensile testing machine is a precision instrument used to test the mechanical properties of materials or products under tension. It is often used to evaluate the strength, elasticity, toughness, and other properties of materials. The tensile testing machine mainly tests the mechanical properties of materials by stretching the specimen. The testing machine is generally composed of a host, a control system, a detection system, a fixture, etc. During the test, the specimen is installed in the fixture, and then the tensile load is applied through the host. At the same time, the testing machine will record the stress, strain, displacement, and other data of the specimen to evaluate the mechanical properties of the material.

Mechanical Properties Test

The tensile testing machine can be used to test the tensile strength, yield strength, fracture strength, elastic modulus, elongation,n, and other mechanical properties of the material.

Various Test Types

Suitable for tensile, compression, bending, shearing, tearing, peeling, g, and other tests of various materials such as metals, plastics, rubber, paper, fibers, textiles, etc.

Test Process Control

It can achieve a variety of control methods such as fixed speed, fixed displacement, fixed load, fixed load increase rate, fixed stress, fixed stress increase rate, fixed strain, fixed strain increase rate, etc.

Data Processing and Analysis

Test data and test conditions can be automatically saved, the curve can be re-analyzed after the test, and the test report can be programmed and printed in the format required by the user, and exported as an EXCEL file.

Types of Tensile Testing Machines

Tensile testing machines provide quantitative data for material properties through precise mechanical testing, and the classification method is relatively fixed. According to the control method, they can be divided into manual control, digital display, microcomputer control, computer servo control, and other tensile testing machines. According to the structural form, there are single-column, double-column, door-type, and other tensile testing machines. According to the size of the test force, they are divided into small tensile testing machines (test force is generally below 10kN), medium-sized tensile testing machines (test force between 10kN and 100kN), and large tensile testing machines (test force above 100kN)

Development History of Tensile Testing Machines

The development history of tensile testing machines can be divided into four important stages:

Late 18th century to early 20th century, This is the period when the initial form of tensile testing machines appeared. The tensile testing machines at that time were mainly composed of manually operated lever systems, shaped like large scales, and could only perform simple tensile tests.

Early 20th century to the 1940s, During this period, tensile testing machines began to develop towards automation. Electric motors began to replace manual lever systems, and mechanical devices were introduced to measure tension and displacement. The design of specimen fixtures was also improved, improving the accuracy and stability of the test.

1950s to the 1970s, Tensile testing machines entered the electronic and computer control stage. With the development of electronic technology, people began to use electronic sensors and instruments to measure tension and displacement, and integrated these devices with computer control systems, making the recording and analysis of test data more accurate and convenient. The electro-hydraulic servo control system was applied in the material testing machine, breaking the traditional boundaries between dynamic testing machines and static testing machines, and greatly improving the performance of material testing machines. Subsequently, fracture mechanics test methods emerged, and corresponding new material testing machines were developed and improved accordingly.

1980s to present, During this period, tensile testing machines have achieved digitization and intelligence. Modern tensile testing machines usually use LCD screens and touchscreen control interfaces, have high-precision measurement and control capabilities, and can monitor and record test data in real time. The mature application of electronic computers in material testing machines can not only perform simulation tests strictly according to given procedures, but also quickly process test data and curves and print or display the results, greatly improving the accuracy and speed of material performance testing.