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videoXtens biax 2-150 HP

The extensometer for high-precision, biaxial measurement on fiber-reinforced composites Download
Max. measurement range
  • 160 mm
Temperature range
  • Ambient temperature
  • Up to 250°C
Type of test + change in width
  • Tensile, compression, flexure tests
  • Cyclic tests
  • Change in width measurement
  • Strain distribution
  • Test re-run
  • 2D dot matrix
Material
  • Plastics
  • Fiber-reinforced composites

Determination of the tensile modulus and Poisson’s ratio with unprecedented accuracy

An extensometer for everything: from determination of the tensile modulus and Poisson’s ratio to specimen break, and for testing at ambient temperature as well as in a temperature chamber. The videoXtens biax 2-150 HP is an optical extensometer that was specifically developed for testing of fiber-reinforced composites and can measure without the need for added markings.

  • The videoXtens biax 2-150 HP is a unique optical strain measurement system, which determines the tensile modulus and Poisson’s ratio to ISO 527 with an accuracy never before achieved by non-contact extensometers.
  • This accuracy is also attained at temperature inside a temperature chamber.
  • Many typical tests on fiber-reinforced composites are covered with a single testing system.
  • Strain measurement on non-transparent fiber composites without the need for markings saves significant time and costs.

videoXtens biax 2-150 HP: high-precision strain measurement for fiber composite materials

The videoXtens biax 2-150 HP determines the tensile modulus and Poisson’s ratio to ISO 527 with a level of accuracy never before achieved with non-contact extensometers. This accuracy is also attained at temperature inside a temperature chamber. In addition, the videoXtens biax 2-150 HP can test marklessly, which saves a lot of time and money.

Key advantages and features

Key advantages and features

High-accuracy determination of the tensile modulus and Poisson’s ratio
Testing without gauge marks saves time and money
Maximum accuracy under temperature conditions through ZwickRoell’s system competence
Reliable, reproducible test results guaranteed
Wide range of applications for fiber-reinforced composites

High-accuracy determination of the tensile modulus and Poisson’s ratio

The most important criterion for accuracy of the non-contact videoXtens is the fulfillment of the strict ISO 527 requirements on the determination of the tensile modulus and Poisson’s ratio. In particular the transverse contraction constant (Poisson’s ratio) can be determined with an unprecedented accuracy for optical extensometers. The videoXtens biax 2-150 HP also meets these requirements for testing in a temperature chamber.

A significant win: since the same measuring system can be used both under temperature and at ambient temperature without changes to the hardware, reproducible test results are guaranteed.

Testing without gauge marks saves time and money

The effort required for specimen preparation is minimal for this extensometer, since gauge marks are not needed. The use of blue contrast lighting greatly enhances the contrast of the natural surface structure of opaque fiber-reinforced composites such as carbon fiber reinforced plastics (CFRP). Virtual gauge marks can be defined with the clearly distinguishable pattern. Therefore, manual specimen markings are not necessary. saving you time and costs.

Of course it is also possible to measure with alternative measuring options on the specimen.

Maximum accuracy under temperature conditions through ZwickRoell’s system competence

With the ZwickRoell temperature chambers, the videoXtens biax 2-150 HP+ satisfies the strict requirements for determining the tensile modulus to ISO 527 even in a temperature range of -80°C to 250°C. All temperature chambers have been optimally adapted to the optical extensometers. Together they form a closed system which minimizes environmental influences. Temperature control and convection in the temperature chamber are optimized so that extensometer resolution guarantees a maximum level of detail even under temperature.

Reliable, reproducible test results guaranteed

You are guaranteed to attain reproducible test results: Whether at ambient temperature or in the ZwickRoell temperature chamber, whether determination of a modulus in the initial measuring range or all values up to break, the same testing system is used without the need for hardware conversions. This also saves on time.

Wide range of applications for fiber-reinforced composites

An additional distinguishing advantage of the testing system is the number of applications for fiber-reinforced composites. These include tensile tests to ISO 527-4/-5, ASTM D3039, ASTM D4018, as well as determination of the shear modulus or shear strain to ISO 14129 and ASTM D5318. 3- and 4-point flexure tests to DIN EN ISO 14125 can also be performed without hardware expansions or extensometer conversion.

From the elastic range all the way to break, the videoXtens records the complete stress-strain behavior of the specimen with the highest level of accuracy. There is no risk of damage, since the strain measurement is contact-free. This is an important feature, especially for fiber-reinforced composites with their partially high energy specimen failure.

Typical applications videoXtens biax 2-150 HP

Typical applications videoXtens biax 2-150 HP

Determination of the tensile modulus to ISO 527-1 Annex C
Determination of Poisson’s ratio to ISO 527
Determination of the shear modulus or in-plane shear (IPS) strain ±45°
3-/4-point flexure test to DIN EN ISO 14125

Determination of the tensile modulus to ISO 527-1 Annex C

  • High-accuracy measurement of longitudinal strain with ZwickRoell array technology
  • Compliance with strict requirements to ISO 527-1 Annex C, also in a ZwickRoell temperature chamber

Determination of Poisson’s ratio to ISO 527

  • High-accuracy measurement of longitudinal strain with ZwickRoell array technology
  • Additional camera integrated in the system for high-precision measurement of change in width
  • Compliance with strict requirements for determination of the Poisson’s ratio, also in a ZwickRoell temperature chamber

Determination of the shear modulus or in-plane shear (IPS) strain ±45°

  • High-accuracy measurement of longitudinal strain with ZwickRoell array technology
  • Additional camera integrated in the system for high-precision measurement of change in width
  • The wide measurement range also allows for measurements up to break

3-/4-point flexure test to DIN EN ISO 14125

  • A software option is available for 3-/4-point flexure tests A hardware expansion or conversion is not necessary

Technical overview

  • Determination of the stress or strain curve up to break through a wide measurement range with high resolution 
  • Brittle-fracturing fiber composites can be tested up to break without damaging the extensometer.

Do you have any questions regarding our products?

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We look forward to discussing your needs.

 

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  • videoXtens biax 2-150 HP PDF 2 MB
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