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( Strength of materials)
In materials science, the strength of a material refers to the material's ability to resist an applied stress. The applied stress may be tensile, compressive, or shear. A material's strength is a function of engineering processes, and scientists employ a variety of strengthening mechanisms to alter the strength of a material. These mechanisms include work hardening, solid solution strengthening, precipitation hardening and grain boundary strengthening and can be quantified and qualitatively explained. However, strengthening mechanisms are accompanied by the caveat that mechanical properties of the material may degenerate in an attempt to make the material stronger. For example, in grain boundary strengthening, although yield strength is maximized with decreasing grain size, ultimately, very small grain sizes make the material brittle. In general, the yield strength of a material is an adequate indicator of the material's mechanical strength. Considered in tandem with the fact that the yield strength is the parameter that predicts plastic deformation in the material, one can make informed decisions on how to increase the strength of a material depending its microstructural properties and the desired end effect. Strength is considered in terms of compressive strength, tensile strength, and shear strength, namely the limit states of compressive stress, tensile stress and shear stress, respectively. The effects of dynamic loading is probably the most important practical part of the strength of materials, especially the problem of fatigue. Repeated loading often initiates brittle cracks, which grow slowly until failure occurs. However, the term strength of materials most often refers to various methods of calculating stresses in structural members, such as beams, columns and shafts, when the equations of equilibrium are not sufficient to solve the problem. In such problems, known as statically indeterminate problems, the elastic or plastic resistance of the material to deformation must be considered when calculating stresses. In this sense, the word "strength" could well be replaced by "stiffness", but the usage goes back to at least 1930 and is not likely to go away any time soon. Uniaxial stress is expressed by
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Strength of materials Subcategories
Strength of materials Articles
Benefits of Exercise by jaffar aashik
Just put on your exercising gear and make your wish come true. For overall health any form of physical activity or exercise is very important. Exercising has manifold benefits both physical as well as mental. Half an hour of exercising everyday can g...
THE NEED OF A DIET MEAL PLAN FOR KIDS TO AVOID OBESITY... by Sheldon Feaster
When a person is so overweight that it starts affecting his health is when the person is obese. Obesity can also be explained as the excess amount of fat in your body. Obesity in adults was an epidemic already and now obesity in children is also sp...
The effects of fast food on your weight and your weight reduction program. by Sheldon Feaster
I often see people cribbing about the way they are adding on to those extra pounds to their already fat body. Then I see the same people super-sizing their orders that has the fried things, sodas the size of a bucket with a free refill, and not to fo...
Learn Genuine State of The Art Top Secret Battle Proven Training Books and Personal Training Videos by Martin Day
Thank goodness, health and fitness is at the forefront of everyone’s mind these days, however, too many of us, just do not have the stamina to stay with a fitness program. Well, world renowned fitness, martial arts and self defense expert Martin Day ...
Benefits of Exercise by Prabakar S
Just put on your exercising gear and make your wish come true. For overall health any form of physical activity or exercise is very important. Exercising has manifold benefits both physical as well as mental. Half an hour of exercising everyday can g...
Maximum strength and Elastic endurance of Strength training by jeya lakshmi
Strength training is the use of resistance to muscular contraction to build the strength, anaerobic endurance and size of skeletal muscles. There are many different methods of strength training, the most common being the use of gravity or elastic/hyd...
Muscle Building - Sports Nutrition - The Misconstrued Truth of Eating Big To Get Big Part 2 by Raymond Toulany
It’s inevitable that most people trying to gain muscle mass will be told “You gotta eat big to get big!” and immediately adopt the “See Food Diet” – which is to simply eat everything in sight within arms reach that isn’t bolted down, or can’t run awa...
Muscle Building - Sports Nutrition -The Misconstrued Truth of Eating Big To Get Big Part 1 by Raymond Toulany
So, do you have to eat big to get big? If you read articles pertaining to putting on mass from any of the muscle comics, they usually tell you that you need to eat, and eat BIG! Read enough of these and you’ll be brainwashed to the point of...
Muscle Building - Sports Nutrition - Eat for Optimal Health and Get More Out of Your Body - Faster! by Raymond Toulany
One of the most popular strength magazines from the golden era of strength training, the 20’s, 30’s and 40’s, was called “Strength and Health.” If you’re fortunate enough to get your hands on a copy and read through it, you’ll notice that there’s an...
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