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4434Strength of Materials
http://www.merlot.org/merlot/viewMaterial.htm?id=89780
A set of notes covering the contents of Mechanics of Materials at the junior level in engineering.Apollo of Aeronautics: How NASA Changed the Future of Aircraft Energy Efficiency
http://www.merlot.org/merlot/viewMaterial.htm?id=582364
This is a webcast conducted by Mark Bowles at American Public University, where he talked about his latest book entitled the Apollo of Aeronautics. It describes NASA's role in developing fuel efficient technologies for commercial aircraft in the 1970s and 1980s.Engineering Statics
http://www.merlot.org/merlot/viewMaterial.htm?id=89773
A set of notes covering the contents of Engineering Statics at the sophomore level in engineering.Mechanics source page
http://www.merlot.org/merlot/viewMaterial.htm?id=89782
Notes and instructional aids for Mechanics (Statics, Dynamics, Mechanics of Materials).Three dimensional elasticity solutions for plates
http://www.merlot.org/merlot/viewMaterial.htm?id=365142
A Navier-type method for finding the exact three-dimensional solution for isotropic thick and thin rectangular plates is presented. The extension of this procedure to the case of multilayered plates (composite structures) is straightforward and can be found in the listed references . The method presented in these lectures uses the Mixed Form of Hooke's Law (MFHL) which leads one to write the boundary conditions on the top and bottom surfaces of the plate directly in terms of transverse stresses. Mixed Form of Hooke's Law is obtained from the Classical Form of Hooke's Law (CFHL). The displacements, stresses and external loads are expressed by using trigonometric functions. It is possible to demonstrate that this particular choice satisfies the simply supported boundary conditions. The elasticity solution must satisfy the equilibrium equations, geometric relations and Hooke's law. After some mathematical derivations it is possible to demonstrate that a set of differential equations in the unknown amplitudes of the displacements and stresses has to be solved. An eigenvalue problem is obtained. Only 2 (over a total of 6) eigenvalues are distinct. Therefore, a basis of eigenvectors is not available and 2 generalized eigenvectors have to be found. The solution is a combination of the eigenvectors and generalized eigenvectors multiplied by functions of the out-of-plane coordinate z. The unknown constants of this combination are determined by imposing that the transverse stresses at the top and bottom surfaces of the plate must match the applied pressures. In a general multilayered structure additional conditions on the interlaminar continuity of the displacements and transverse stresses are required. Once the unknown coefficients are calculated, the elasticity solution is complete. These lectures present an algebraic solution for the particular case of a pressure applied at the top surface. The extension to the case of generic load can be obtained by using Fourier analysis. The lectures also present the FREE software that can be downloaded. The program calculates the amplitudes of the displacements and stresses for a sinusoidal load pressure applied at the top surface of the plate. The amplitude of the pressure distribution, material properties, geometric dimensions of the plate and wave numbers are inputs of the software.Deliberate Unprofessional Conduct as a Major Cause of Accidents
http://www.merlot.org/merlot/viewMaterial.htm?id=565928
In this clip from the film Flight of the Phoenix, a pilot chooses to fly through a dust storm even though his plane is over weight, an example of deliberate unprofessional conduct that accident investigators say causes 40% of all airline crashes.Design MU0 - a simple microprocessor with FPGA
http://www.merlot.org/merlot/viewMaterial.htm?id=86618
This tutorial will cover the design of a simple system-on-a-chip in VHDL, with an emphasis on the development and simulation of a testbench for the mu0 microprocessor. The mu0 and its associated RAM is treated as black boxes, and a testbench is developed around them. The VHDL design of the mu0 can be downloaded from the webpage.Fluid Dynamics
http://www.merlot.org/merlot/viewMaterial.htm?id=248433
This is a very helpful site for learning about fluid dynamics!Space Place Prime App for iOS
http://www.merlot.org/merlot/viewMaterial.htm?id=906488
'Space Place Prime is a content presentation app that gathers some of the best and most recent offerings from NASA. A spinoff of NASA’s popular kids’ Space Place website (spaceplace.nasa.gov or science.nasa.gov/kids), Space Place Prime has intergenerational appeal. It taps timely educational and easy-to-read articles from the website, as well as daily updates of NASA space and Earth-from-space images and the latest informative videos.The interface is a slidable, looping grid of images, one for each feature, with icons indicating whether they represent an image, a video, or an article. Alternatively, a list mode and a carousel mode present images, videos, and articles sorted separately. Content is updated daily, retaining the previous few days-worth of features. Favorites can be tagged for permanent archive.'This is a free app