videoXtens dynamic
Download
- 90 mm
- Suhu ruangan
- Hingga 250°C
- Uji Fatik
- Uji dinamika
- Low Cycle Fatigue
- Static tensile tests
- Sensitive specimens such as films/foils, wires
- Komposit
- Metals
Deskripsi
The videoXtens dynamic is a non-contact, high resolution extensometer specifically developed for fatigue tests. It supports strain-controlled testing up to 30 Hz and peak value measurement up to 100 Hz.
Thanks to its extraordinary accuracy, tests with low strains are also possible, such as fatigue tests on composites according to ASTM D3479 or low cycle fatigue tests according to ASTM E606 or SEP 1240.
The videoXtens dynamic can also be used to perform static tensile tests such as the determination of the tensile modulus to ISO 527, ASTM D3039, ISO 6892-1 or ASTM E8. A maximum field of view of 90 mm must be observed.
Dinamika videoXtens dapat diintegrasikan sepenuhnya ke dalam ZwickRoell fatigue testing machines atau elektronik atau dioperasikan melalui sinyal analog pada third-party machines.
videoXtens dynamic application possibilities
The videoXtens dynamic provides maximum efficiency and flexibility for strain-controlled fatigue tests. This opens up new application possibilities:
- Thin and sensitive specimens such as foils, wires
Some applications do not work with a clip-on extensometer because the specimens are simply too thin and the clip-on extensometer cannot be attached. The videoXtens dynamic opens up new possibilities for strain-controlled testing of these materials.
There are also applications where a clip-on extensometer can be attached because the specimen thickness is sufficient. However, the specimen surface is very sensitive, which is why the measuring edges of the extensometer cause notches that falsify the test result. - Low strains
The high accuracy of the videoXtens dynamic means that even applications with low strains can be measured reliably. This enables low cycle fatigue or composite tests to be carried out in compliance with industry standards. - High test frequencies up to 30 Hz
Strain controlled fatigue tests are also possible at high test frequencies up to 30 Hz, for example in the case of high cycle fatigue tests.
| Sensitive specimens | Komposit | Metals | Plastik | |
|---|---|---|---|---|
 |  |  |  | |
| Uji dinamika | Dynamic atau fatigue tests pada sensitive specimens
|
| Low cycle fatigue
Fraktur mekanik
|
|
| Static tensile tests | Tensile tests untuk penentuan tensile modulus pada sensitive specimens | |||
| Keunggulan |
|
|
|
|
Achieve reliable test results quicker
- For use with a temperature chamber, the videoXtens dynamic does not need to be converted or retrofitted in any way, nor does it need to be recalibrated.
- With preconfigured settings, the videoXtens dynamic can be implemented for dynamic, static or temperature controlled tests at the push of a button.
- Kesalahan operator yang mungkin terjadi saat memasang ekstensometer dan mengatur panjang initial gauge dapat dihindari.
- Dengan tidak menggunakan clip-on extensometer, spesimen tetap ada free of damage, yang dapat terjadi akibat pemotongan.
Sensitive specimens
Untuk pertama kalinya, dinamika videoXtens memungkinkan strain measurement and control spesimen yang sangat tipis dan sensitif.
Attachment of a clip-on to very thin specimens is not possible, sine this extensometer would damage the specimen with its knife edges. The non-contact extensometer prevents this pre-damage and thus reduces specimen waste. Dan yang lebih penting lagi: pengukuran optik memastikan bahwa hasil Anda tidak terpengaruh atau terdistorsi.
Untuk spesimen yang tipis dan rapuh seperti film, kami menawarkan gripping aid agar mudah dan benar insertion dan alignment of the specimen in the specimen holder. With this tool you can keep your specimen waste to a minimum and achieve consistent, reliable test results.
Komposit
Sebagai contoh, videoXtens dynamic dapat digunakan untuk melakukan tensile fatigue tests pada fiber-reinforced polymer matrix composites sesuai ASTM D3479 (method B) dan ISO 13003 dengan constant strain amplitude.
Pengujian ini dilakukan di ambient temperature dan di temperature-controlled environment. VideoXtens dinamis menawarkan kemudahan penggunaan yang maksimal: Dinamika videoXtens tidak perlu dimodifikasi baik saat memasang atau melepas temperature chamber melalui rail guide. Ekstensometer cukup digerakkan sedikit ke belakang di dalam dudukannya sehingga temperature chamber dapat dipindahkan ke atas rails.
Karena pengukuran non-kontak, pengukuran edges of the videoXtens dynamic tidak bisa slip selama specimen break, sehingga hasil tes tidak terpengaruh. Bahkan material yang pecah pun tidak dapat merusak ekstensometer optik selama spesimen break. Pengujian yang tidak valid berkurang dibandingkan dengan ekstensometer clip-on, karena pengukuran strain non-kontak tidak merusak spesimen dan risiko hasil yang salah diminimalkan.
ASTM D3479 juga mengacu pada ASTM E739 untuk evaluasi hasil pengujian. Untuk standar ini, testXpert menawarkan "Fatigue Data Evaluation" software add-on, yang dapat digunakan untuk menghasilkan S-N curves sesuai dengan standar dengan menekan sebuah tombol.
Metals
Ekstensometer dinamis videoXtens dapat digunakan untuk low cycle fatigue tests.
VideoXtens dinamis optik menawarkan keunggulan berikut ini dibandingkan ekstensometer clip-on, terutama untuk pengujian pada sheet steel with buckling support menurut SEP 1240:
- Komplikasi yang sering terjadi ketika memasang ekstensometer clip-on ke penyangga tekuk dieliminasi oleh ekstensometer optik.
- The specimen is not pre-damaged by the knife edges.
- No operator error in setting the initial gauge length.
Plastik
Fatigue tests on plastics such as elastomers can be reliably tested with the videoXtens dynamic extensometer because, unlike clip-on extensometers, the specimen is not pre-damaged by the knife edges, which would influence the test result.
In addition, conventional clip-on extensometers usually have a limited measurement travel distance, which cannot adequately record the strain on elastic specimens.
2-in-1: static dan dynamic tests
The videoXtens dynamic can be used for both static and dynamic tests. Dengan menggunakan satu ekstensometer untuk kedua pengujian, Anda memaksimalkan efisiensi dan menghemat biaya.
Penentuan modulus tarik dalam uji statis menurut ISO 527 (tensile test on plastics), ASTM D3039 (tensile test on composites), ISO 6892-1 (tensile test on metals) atau ASTM E8 (tensile test on metals) dapat dilakukan dengan mudah. Please not the maximum field of view of 90 mm.
