Email Address

Dynamic Mechanical Analysis (DMA)

You are here: Home > Material Testing > Thermal Analysis > Dynamic Mechanical Analysis (DMA)

Dynamic Mechanical Analysis (DMA)

Dynamic mechanical analysis (DMA) is an analytical technique, in which the sample is at a programmed temperature, and a single-frequency or multi-frequency oscillatory force is applied to determine the relationship between the storage modulus, loss modulus and loss factor with the frequency of temperature, time and force. DMA is widely used to explore and characterize materials, including glass transition and melting test, secondary transition test, frequency effect, optimization of transition process, characterization of nonlinear properties of elastomers, fatigue test, characterization of material aging, impregnation test, long-term creep prediction and other best material characterization schemes. In addition, it is particularly suitable for studying the viscoelastic behavior of various polymers (such as plastics and rubber, etc.). As a professional reliability third-party testing organization, T,C&A Lab can provide DMA testing service according to ISO, ASTM standards and industry requirements. Welcome to contact our experts for consultation.

Analysis and testing capabilities of DMA

  • Viscoelastic material properties
  • Damping
  • Glass transition temperature
  • Hot deformation temperature
  • Frequency-dependent mechanical properties of materials
  • Tensile modulus
  • Bending modulus
  • Compression modulus

Application ranges of DMA

  • Measure the dynamic mechanical properties of materials at different frequencies, different temperatures and different loads.
  • Analyze the stress, strain, glass transition temperature, storage modulus, loss modulus and composite modulus, damping factor and compatibility of materials such as plastics, rubber, fibers, composites, polymer materials, inorganic materials, metals, etc.

Testing methods

  • DMA measurement system can choose three-point bending, compression, tension, shear, torsion, parallel plate, circular twitch, double-arm cantilever and single-arm cantilever according to different sample sizes and characteristics. Each testing method has two modes of stress and strain.
  • Forced non-resonance method and torsional pendulum method are often used to measure rubber, plastic, fiber and other solid polymer samples which are easy to form.
  • For polymer melts or viscous solutions which are not easy to form, the samples are often impregnated on the braids of the torsion braid instrument and tested by the method of free vibration.

Our case studies include, but are not limited to

  • Study on the primary and secondary transitions of polymers
  • Study on the structure of homopolymers, copolymers and blends
  • Study on the crystallization and orientation of polymers
  • Study on crosslinking and curing of polymers
  • Evaluation of cold resistance and impact resistance of polymers
  • Study on the aging of polymers

Standards we test to

  • ASTM D7028-07, ASTM D5023-15, ASTM E2254-18, ASTM E1545, ASTM D5024, ASTM E2425-16, ASTM E1867-18, ASTM E1640
  • ISO 6721-11, ISO 18437

In addition, the experts in our Dynamic Mechanical Analysis (DMA) Laboratory also provide a variety of custom services as your needs and requirements. Let's discuss the custom services with our experts for free.

Instruments and data

Dynamic Mechanical Analysis
Dynamic Mechanical Analysis (DMA)

Reference

  1. Ayalasomayajula, et al. Examining the mechanical properties of annealed and not annealed multilayer film (Polyethylene/polyethylene terephthalate/polyethylene) by dynamic mechanical analysis (DMA). International Journal of Mechanical Engineering and Technology 6.10 (2015).

Note: the service is for research use only and not intended for any clinical use.

Menu

T,C& A LAB is an independent lab providing quality or custom testing, characterization and analysis of a variety of materials. Our engaged experts are ready to help you.

REQUEST A QUOTE
Request A Quote