An optical flat is used to measure the height difference between a reference slip gauge A and a slip gauge B. Upon viewing via the optical flat using a monochromatic light of wavelength 0.5 Β΅m, 12 fringes were observed over a length of 15 mm of gauge B. If the gauges are placed 45 mm apart, the height difference of the gauges is ______________ ΞΌm.
(Answer in integer)
The effective stiffness of a cantilever beam of length L and flexural rigidity EI subjected to a transverse tip load W is
A beam is undergoing pure bending as shown in the figure. The stress (π)-strain (π) curve for the material is also given. The yield stress of the material is ππ. Which of the option(s) given represent(s) the bending stress distribution at cross-section AA after plastic yielding?
