How does UTM machine work?
How does UTM Machine works? When the start button is pressed input of the pin is triggered and the attached extensometer starts recording readings of compression / tensile test and UTM is also used with the different levels of capacity like 300KN to 10,00KN.
How does a tensile test machine work?
A material is gripped at both ends by an apparatus, which slowly pulls lengthwise on the piece until it fractures. The pulling force is called a load, which is plotted against the material length change, or displacement. The load is converted to a stress value and the displacement is converted to a strain value.
How does UTM measure tensile strength?
In a simple tensile test, a sample is typically pulled to its breaking point to determine the ultimate tensile strength of the material. The amount of force (F) applied to the sample and the elongation (∆L) of the sample are measured throughout the test.
Which test can be performed on UTM?
By far the most common tests performed on plastics with a UTM are tensile strength and modulus and flexural strength and modulus. All testing is done in accordance with specific ASTM and /or ISO standards.
Why are dog bones shaped for tensile testing?
This information is determined by means of a simple tensile test. For most materials, a dog bone shape is used in order to promote a failure within the gauge length of the extensometer and prevent grip end failures, but not for composites.
What care should be taken while performing a test on UTM?
The grips used in the testing machine must be properly serrated so that there is no chance of slippage of the specimen. If the specimen breaks due to any reason, other than the tensile stress, the test procedure should be discarded, and a new test must be performed on a fresh specimen.
What tests can be performed on UTM?
The standard tests performed by UTM are:
- Tensile Test.
- Compression Test.
- Adhesion Tests.
- Pull-Out Tests.
- Bending Test.
- Hysteresis Test.
What is the capacity of UTM machine?
| Capacity | 10 kN |
|---|---|
| Maximum crosshead speed at 5 kN | 500 mm/min |
| Jog speed | 0.001 to 1000 mm/min |
| Return speed | 0.001 to 750 mm/min |
| Frame stiffness | 100kN/mm |
Is tensile testing expensive?
In 2021, the price of a tensile test machine ranges from $8,700 to $166,000. The 3 main factors that affect the cost are force, test space and controller, with force capacity having the most impact. Low force (ranging from 1 kN to 25 kN max force) tensile test machines range in price from $8,700 to $29,000.