September 2015
September 29, 2015 - 8:52am
M-Bond 200 cyanoacrylate adhesive is often requested as a first choice because of ease of use, but its characteristics are acceptable mostly for short-term and ambient-temperature test situations. ...
September 25, 2015 - 8:51am
The electrical resistance strain gage is virtually insensitive to pressure applied normal to the plane of the installed gage, even in high-pressure environments. Research suggests that the strain...
September 22, 2015 - 8:48am
When preparing to make a PhotoStress coating, determine the volume of liquid resin using the formula: (length x width x thickness) x 18.5. This will give you the number of grams of liquid material...
September 17, 2015 - 8:45am
While very robust when properly installed, strain gages are very delicate prior to installation and protection by approved coatings. When handling strain gages prior to installations, use only clean...
September 15, 2015 - 4:11pm
According to Frank Tatnall in his book "Tatnall on Testing" (1966, American Society of Metals, p. 101) and as reported in the “SR-4 News Letter” (1940s):
“A gage resistance of 120 ohms was selected...
September 11, 2015 - 9:12am
When strain gage instrumentation leads become unwieldy, the probability of pulling tabs off the by tripping over the wires increases. Make sure that you properly strain relieve the wires by adding a...
September 8, 2015 - 4:11pm
A quick look in the M-M strain gage catalog shows several EA, N2A and N2K series gage “options” that include a cover (encapsulation) of the strain gage grid. These options include E, LE, SE, W, E2,...
September 3, 2015 - 7:02am
Aircraft, both commercial and military fleets, see decades of service. The stress and strain from thousands of take-offs and landings, as well as in-flight turbulence, all contribute to component...
