Information on the most widely used ASTM standards within the materials testing industry
Model: UT1029MD-E
In-situ biaxial loading test system: Biaxial mechanical performance testing applicable to isotropic and anisotropic materials.
◇ Capable of independent uniaxial testing, as well as biaxial proportional and non-proportional loading tests.
◇ Optional video extensometer for non-contact measurement of biaxial strain, enabling non-contact strain control experiments.
◇ Combined with a super-depth optical microscope system and other microscopic observation equipment to achieve online characterization of the microstructure evolution of materials during loading.
◇ Standard equipped with a constant temperature water bath system for actual single and biaxial mechanical performance of biological materials in PBS buffer solution at 37°C.
General introduction
Our in-situ biaxial loading test systems are designed for multi-axis material characterization under true biaxial stress states. They support tensile, compression, and bending tests while allowing real-time observation under microscopes, with optional EBSD integration for microstructure analysis.
Built for isotropic and anisotropic materials, the system enables independent uniaxial testing, biaxial proportional and non-proportional loading, and synchronized loading schemes for advanced research and quality validation. Optional DIC, water bath, high-temperature, and corrosive-environment configurations help replicate real service conditions more accurately.

Scope of application: biomaterials, hydrogels, polymers, film materials, flexible electronics, etc.
Suitable to various micro devices
Real-time characterization of material structure evolution, micro-crack initiation, propagation, and fracture processesIn-situ symmetric loading;
In-situ biaxial symmetric loading mode can apply biaxial stress of different directions and magnitudes to the sample, keeping the sample moderately in the center of the field of view, suitable for online observation.

Features
◆ Combined with optical microscopes, X-ray diffractometers, and other microscopic observation devices, it enables online characterization of the microstructural evolution of materials during loading;
◆ Capable of uniaxial independent testing, as well as biaxial proportional and non-proportional loading tests;
◆ A water bath environment can be added to test materials (such as under a water bath or corrosion environment) for biaxial mechanical performance;
◆ Optional video extensometer for non-contact measurement of biaxial strain;
◆ Collaborates with independently developed specialized software to achieve other testing schemes such as biaxial synchronous stretching, cycling, and asynchronous loading.
Main technical specification
| Maximum rated load | 1000N |
| Load measurement range | 0.4%~100%F.S. |
| Load measurement accuracy | Better than ± 0.2% of the indicated value (within the load measurement range) |
| Maximum fatigue loading frequency | 10Hz |
| Displacement measurement range | 30-300mm |
| Displacement resolution | 0.1μm |
| Displacement loading rate | 5μm/s-1mm/s |
| Net weight | About 60kg |
| External dimensions | Approximately 300×300×40 (mm) |
| Optional tooling | Tensile fixtures, compression fixtures, shearing fixtures, peeling fixtures, etc |
| Optional environmental accessories | Water bath environment, high temperature environment, low temperature environment, corrosive environment, etc |
| Application | Uniaxial in-situ mechanical properties of biomaterials, hydrogels and polymer films |
FAQ
Q1: What is an in-situ biaxial loading test system?
An in-situ biaxial loading test system is specialized equipment designed to apply biaxial or multi-axis loads to a specimen while allowing real-time observation during testing. It is commonly integrated with microscopes, cameras, SEM systems, or other imaging devices to study deformation, crack growth, and microstructure changes under load.
Q2: What materials can be tested?
This system is widely used for testing metals, composites, polymers, elastomers, thin films, membranes, biomaterials, and soft tissues. It is especially suitable for materials with anisotropic properties or those requiring evaluation under complex stress states.
Q3: Can it support proportional and non-proportional loading?
Yes. The system supports proportional and non-proportional biaxial loading paths through independent servo control of each axis. This enables accurate simulation of real service conditions and advanced multi-axis mechanical behavior studies.
Q4: Can it work with DIC, EBSD, or environmental chambers?
Yes. Optional configurations commonly include Digital Image Correlation (DIC), EBSD systems, video extensometers, water bath chambers, temperature chambers, humidity chambers, and corrosive-environment testing modules.
Q5: What industries use in-situ biaxial loading test systems?
These systems are widely used in automotive, aerospace, biomedical engineering, electronics, material science, universities, and research laboratories for advanced mechanical characterization.
Q6: What testing modes are available?
Depending on configuration, the system can perform biaxial tensile testing, compression testing, cyclic fatigue testing, creep testing, relaxation testing, and custom multi-axis loading programs.
Q7: Can the machine be customized?
Yes. Load capacity, test space, fixtures, grips, environmental chambers, control software, and measurement systems can all be customized according to customer requirements.
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