A cylindrical specimen having a cross-section of radius, r, is subjected to a uniaxial tensile force, F, as shown in the accompanying figure. Establish a criterion for the selection of light and stiff materials for this bar (Hints: You need to develop an expression for the mass of material required in terms of tension, bar length, density, and stiffness of the material). ہے

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Nanomaterials and Applications

Nanomaterials are materials that are composed of nanoparticles having a size ranging from 1 to 100 nm. The constituent particles are 100,000 times smaller than the thickness of a strand of human hair. The nanoparticles cannot be seen through naked eyes and require very high-resolution microscopes. Here, 'nm' stands for nanometer. These materials can occur naturally or can be artificially made. Artificially made nanomaterials are often called lab-engineered nanomaterials. Nanomaterials are extensively used in electronics, medical, aerospace, and other industries.