From Atlas Material Testing Technology LLC
Organizing the scope of weathering test methods into logical order helps the engineer visualize tools available for weathering tests. One order organizes exposures showing those with slowest rate of degradation on one extreme through the exposures showing the fastest rates of degradation on the opposite extreme. An example of this order may place the end use environment of an automobile in rural Michigan towards one end, at latitude exposures in Florida and Arizona farther along, sun tracking and EMMAqua exposures farther still, up to harsh artificial laboratory methods such as high irradiance xenon or metal halide exposures towards the other end. Organizing exposures in this manner points out a primary consideration for the engineer; a trade off exists between acceleration (speed of obtaining testing results) and confidence (types and rates of degradation are what is actually observed in the end use environment).
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This paper investigates the effects of weathering factors on moisture absorption of coatings and presents results from several projects including real-time and accelerated weathering studies of...
Researchers know moisture plays a key role in weathering of many materials and often place moisture in a set of three primary weathering variables with sunlight and temperature. Researchers use...
Introduction Mitigation is actively interfering with an already conceived process by which an exposure can be removed, handled, or avoided through such interference. While not using a technology...
This paper reviews selected considerations of exposure angle effect on materials weathering degradation. Calculation of solar angle of incidence is reviewed for surfaces with different slope angles.
10.1 Introduction Adhesive bonds must withstand the mechanical forces acting on them, but must also resist the service environment. Adhesive strength is affected by many common environments,...
