Dynamic Mechanical Analysis (DMA) for Advanced Materials Testing

Bose offers a wide range of mechanical testing instruments for material and component characterization.

The Bose® dynamic mechanical analysis (DMA) application offers sophisticated materials testing capabilities for complete characterization of materials. Bose’s flexible system configurations can accommodate a variety of test parameters and sample sizes to meet general and unique characterization requirements.

Control Parameters

The range of control parameters includes temperature; frequency; mean displacement or force; dynamic amplitude for displacement, force or strain; and single condition or two overlapping conditions.

Automatic Calculations

Bose’s testing instruments automatically measures the characteristics of materials and components. Material characteristics include:

  • Tan delta (tan δ)
  • Complex, loss and storage modulus (G*, G’, G” or E*, E’, E”)

Component characteristics include:

  • Damping (C)
  • Phase (δ)
  • Dynamic, storage and loss stiffness (K*, K’, K”)

Specimen Versatility

Bose’s instruments can accommodate a wide range of samples, tests and fixtures such as:

  • Single, double and quad lap shear
  • Tension and compression
  • 3-point bend (free end and double cantiliever)

Simple Test Setup and Easy Access to Data

Test can be set up quickly and easily in the following manner:

  • Enter test conditions
  • Enter sample data
  • Run the test
  • Save the test file for easy access for future tests
  • No adjustment is required

Raw data can be stored in ASCII format and can be easily accessed for further processing. Other features include simple master curve generation (TTS) and 5kHz acquisition rate.

Versatile Display

Testing instruments come with a number of user-defined display options: Test status windows display the status of test; test results are shown following each condition and include real-time verification of data acquisition and total Harmonic Distortion + Noise (THD + N); and the collected data can be graphically shown in a number of ways.

Bose Test Instruments

Featuring a unique test frame, a number of Bose testing systems (Figure 1) can be used for materials characterization across a range of strains, loads, temperatures and frequencies.

Bose test instruments

Figure 1. Bose test instruments

The friction-free moving-magnet linear motor delivers excellent performance over a wide displacement and force range. Besides providing excellent DMA performance, Bose test instruments can be used to perform the following testing parameters:

  • High-cycle fatigue and durability testing
  • Monotonic tensile and compression testing
  • Creep and stress-relaxation testing
  • Multi-sample and multi-axis testing

Conclusion

Bose’s testing solutions can be used medical devices, engineered materials and biomaterials applications. The company’s specialists provide free ongoing training opportunities as well as free lifetime technical support for customers.

This information has been sourced, reviewed and adapted from materials provided by TA Instruments.

For more information on this source, please visit TA Instruments.

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