4) Fatigue wear Heat a piece of metal and there's a small amount of thermal expansion that contracts when it cools. If, over time, as the metal expands and contracts, a small opening forms in the metal – like a crack – a deposit can get in there. As a result, that part doesn’...
When reliability engineering started it focused on metal fatigue and fracture. As thesedesign for reliability (DfR) strategiesimproved, they spurred a shift to electronics reliability using prediction, simulation and testing tools. Physics of failure (PoF) based on design for reliability (DfR) improves...
Sintering is done by putting your parts through a rather toasty furnace. The goal is to control the temperature so it reaches just below the melting point of your parts' primary metal … but not quite. The sintering process causes the metal particles to bond together so you get a part that...
High Copper and low Sulfur - with or without elevated Aluminum- represent one of themostcommoncauses of ADD / ADHD. Symptoms typically include a "foggy" mind, lack of concentration, and poor memory. This particular chemical pattern is as common with kids as it is with adults, and requires ...
The loading cycles applied in the piping design are normally very few in the order of a few thousand. This type of fatigue is identified as low-cycle fatigue. For low-cycle fatigue, the applied stress normally exceeds the yield strength of the material, which causes plastic instability in the...
2) Second, these chemicals must bind to our own tissue proteins creating new antigens (an antigen is any substance that causes your immune system to produce antibodies against it, tagging it for destruction and removal). This immune reaction cannot occur against the chemical itself. The chemical...
Let’s take a look at what coronary heart disease is, its causes and treatment. Let’s begin by understanding the heart. The heart is a muscle that pumps blood throughout the body. The blood carries oxygen and nutrients to all the cells of the body. The heart is like a pump that ...
Q: What causes this radiation on a motorcycle? Motorcycles consist of “oscillating current” electrical systems generating anywhere from 10,000 to 70,000 volts of electricity during engine operation. Throughout the electrical system, pulsing EMF radiation of extremely low frequency is produced. Many...
What can cause hair loss in women, Noticing the first strand of hair on the comb could be a heart-stopping moment for a woman, Here are some of the causes of hair loss in women. Read More » what can cause flu What can cause flu, Influenza, or flu as it is affectionately known,...
Structurally, a load cell sensor is made of a metal body (also called flexure) to which foil strain gauges are bonded. When stress is applied to a stationary object, the resulting deformation or displacement of its material causes strain that is captured by the strain gauge. Load cells and ...