Mpact details

CEMAP

DMI

MPACT

SPHINX

MPAVE

NAVIAEO

Verified and Validated Virtual Reality

In this section we explain the technologies that each of the products is built on.

Standard 2D Marking codes

The Green's Strain Rosettes were purposely designed to work off the 2D Data Matrix symbols. These are standardized 5-bit pixel codes. This design takes advantage of all the work on developing and measuring the Data Matrix symbols in the literature, eg NASA-HDBK-6003.

Using DMI proprietary technology, the deformation of the Data Matrix symbol is measured by means of a hand-held Laser Reader and its supporting Controller.

The DATA Matrix can be prepared on a multitude of materials.

1. In its most convenient form its laser bonded to adhesive material backed by Peel        and Stick backing.

2. Other materials may be vulcanized and bonded to rubber.

3. A special gauge has been developed for high temperature environments up to 2000 deg. F. This is the so-called weldable gauge.

Experimental Tensile tests conducted on a Slit Tension Specimen.

Selected results are presented to show the main advantages of the Green's Strain Rosettes compared with the traditional strain gauge.

Strain Comparisons on same locations as strain gauge.

Fatigue cycling to failure. Demonstrating the ability to get close to the hole.

Strain Based Fatigue Properties For Low Cycle Design

Key Benefits

• Ability to track Plastic Strains during the life of a product.
• Measurements may be taken in the field with minimum set-up time.
• Small gauge lengths give key values.
• Performs in hostile high temperature environments.

Capabilities

Experience with the technology can provide the customer with innovative applications and extensions of the basic technology. For example the development of weldable gauges as a convenient substitute for laser marking of the Data Matrix symbols on site.

We conclude this section with a summary table of the different technologies that can be applied to mark different materials.

Applications in Conjunction with FEA

The Principals of LCV&V and DMI have unmatched experience in the prediction and tracking of high and low cycle fatigu and fracture.

 

 

Developers of DMI technology

Have spent the last twelve years developing and refining the technology.

 

DMI trained Consultants at LCV&V

Provide application know-how in the field on a consultancy basis.

Download DMI-SR1 Operating Manual

    Download the operating manual for the laser reader here

Send mail to marcalpv@lifecyclevnv.com with questions or comments about this web site.
Last modified: January 20, 2010