|
Products
Charpy/Impact
Testing
Drop
Tower
Pendulum Machines
Automatic Charpy
Machines
Instrumented
Impact Testing
Quality Control
Specimens
Double Pendulum
Dynamic Tear
In-Situ Heating &
Cooling
Automatic
Pendulum Return
Automatic
Specimen Transfer
Percent Shear,
Lateral Expansion, Notch Verification
Digital Optical Comparator
Hardness
Testing
Charpy Data
Fitting
Circuit
Board Testing
Beverage Can Tester
Tongs
Shock Testing
Refurbished Equipment
MultiPurpose
Corrosion Cell
High Temperature
Reference
Electrode
Pressure Vessel
Manufacture
Pre-Owned
Equipment
Buy and
Sell
Analytical
Services
Finite
Element/Fracture
Mechanics
Neutron Transport
Analysis
P-T Curve
Analysis
Experimental
Services
Mechanical
Property Testing
Surveillance
Capsule Testing
Failure
Analysis
Services
Failure Analysis
News &
Information
MPM
Product
News
Directions to MPM
Nuclear News
| |
 
MPM continually invents and develops new technologies to serve
our customers needs. This web page summarizes several new products which
are, or will soon be, available for purchase. Please contact us if you
have any questions or require additional information.
Drop Tower Direct Energy Measurement
Measurement of the energy absorbed by a test specimen in a drop
tower test machine requires that the striker be instrumented with strain gages.
MPM has invented a new technology that enables direct measurement of the specimen
absorbed energy without the need for an instrumented system. This
technology is much less expensive when compared with instrumented system
technology. However, instrumented systems do provide load-deflection data
which is important in some testing applications. One important advantage
of direct absorbed energy measurement is the fact that it will be possible to
verify the absorbed energy measured using instrumented strikers.
Automatic Charpy Test Machine
MPM has developed the world’s first fully automatic Charpy
impact test machine. The machine receives a test specimen from a 150-specimen
magazine, reads the specimen ID, transfers the specimen to the anvils and
centers the specimen. The specimen is automatically heated or cooled to
the desired test temperature. Subsequently, the pendulum is released,
impacting the specimen and recording the energy and the instrumented striker
force-deflection data. See our
Automatic
Charpy Machines
page.
Percent Shear Determination
The percentage of shear fracture
area is a direct quantification of the transition in the fracture modes as
temperature increases. Many laboratories use the ASTM photograph comparison
method to determine percent shear. However, this method is very subjective
and leads to results with large uncertainties. MPM has developed a low
cost imaging system and quantification software to address this problem.
The Charpy specimen fracture surface image is acquired on computer, the brittle
and ductile fracture areas are identified, and the software automatically
integrates the area to determine the percent shear area.
Back to Top
|
| Search |
Contact Us