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Saved by uncleflo on December 20th, 2019.
Reinforcement based on carbon and aramid fibres. Categories: Hybrid fabrics, Reinforcements Carbon-aramid reinforcement for production of composite with high mechanical and strength properties. High mechanical parameters of ready-made laminate, very low coefficient of thermal expansion, high fatigue strength, high thermal and electrical conductivity. For the maritime industry, vehicle parts and elements, aviation components, high class marine vessels.
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Saved by uncleflo on June 13th, 2015.
From Algebra I to the SAT Math and beyond, the ability to solve simultaneous first-order (i.e. no exponents) equations can be a lifesaver. While solving for two variables (x,y) is doable, solving for three variables (x,y,z) can be very time consuming. Plus, more variables means a greater risk of careless mistakes. Luckily, the TI-89 calculator can make quick work of three-variable simultaneous equations, and this article will take you through the process step-by-step.
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Saved by uncleflo on April 4th, 2015.
Now, let us assume that we have measured all the engineering constants of an orthotropic material along principal directions. With these engineering constants we know the relation between the strain and stress components as given in Equation (3.42) and Equation (3.43). Thus, it is easy to see that we can relate the strain components to stress components through compliance matrix. Let us recall from previous lecture the stiffness matrix for orthotropic material (Equation (3.26)). The inverse of this matrix (compliance) will have the same form as the stiffness matrix. Thus, we write the relationship between strain and stress components using compliance matrix as follows
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Saved by uncleflo on April 4th, 2015.
The heterogeneity in a composite material is introduced due to not only its bi-phase or in some cases multi-phase composition, but also laminations. This leads to a distinctly different stress strain behaviour in the case of laminates. The anisotropy caused due to fibre orientations and the resulting extension-shear and bending-twisting coupling as well as the extension-bending coupling developed due to unsymmetric lamination add to the complexities. A clear understanding of the constitutive equations of a composite laminate is thus desirable before these are used in analysis and design of composite structures. In this chapter, we first introduce to the readers the basic constitutive equations for a general three-dimensional anisotropic material with and without material symmetry, elastic constants and compliances and their relations to engineering constants, as well as transformation laws for elastic constants and compliances for both three and two-dimensional cases.
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Saved by uncleflo on April 2nd, 2015.
Calculate the Jacobian from a website, very powerful. Many of users do not use powerful Maxima computer algebra system for systematic work, but for ad hoc algebraic calculations – equations, functions, matrixes, etc. only. To do this job, it is not useful to download the whole application from a web site.
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Saved by uncleflo on January 20th, 2015.
How do I calculate the eigenvalue and eigenvector of a matrix on the TI-89 family, TI-92 Plus, and Voyage 200 graphing calculators? To calculate the eigenvalue and eigenvector of a matrix on the TI-89 family, TI-92 Plus, and Voyage 200 refer to the instructions below
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Saved by uncleflo on December 7th, 2014.
OpenGL Mathematics (GLM) is a header only C++ mathematics library for graphics software based on the OpenGL Shading Language (GLSL) specification and released under the MIT license. This library provides classes and functions designed and implemented following as strictly as possible the GLSL conventions and functionalities so that when a programmer knows GLSL, he knows GLM as well, making it really easy to use. This project isn't limited to GLSL features. An extension system provides extended capabilities: matrix transformations, quaternions, half-based types, random number generation, procedural noise functions, etc.
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Saved by uncleflo on May 29th, 2014.
What are Carbon-Carbon Composites? Amorphous carbon matrix composite Carbon matrix reinforced by graphitic carbon fibers First developed in 1958, but not intensively researched until the Space Shuttle Program
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Saved by uncleflo on May 29th, 2014.
Carbon fibre-reinforced carbon (aka carbon–carbon, abbreviated C/C) is a composite material consisting of carbon fiber reinforcement in a matrix of graphite. It was developed for the nose cones of intercontinental ballistic missiles, and is most widely known as the material for the nose cone and wing leading edges of the Space Shuttle orbiter. It has been used in the brake systems of Formula One racing cars since 1976; carbon–carbon brake discs and pads are a standard component of Formula One brake systems.
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Saved by uncleflo on February 8th, 2014.
Do a search on YouTube and you'll turn up literally dozens of video clips of LED cubes, small 3x3x3 cubes, bi-colour, RGB and mono cubes, amazing 16 x 16 x 16 RGB cubes. However, very few show you how to make one and provide the firmware. The cube described on this page uses a 5 x 5 x 5 matrix of single colour LEDs. This is a good size to experiment with as the number of LEDs required at 125 keeps the cost down, doesn't take too long to assemble and just fits onto a eurocard sized PCB. The power requirement is under 1 amp and the use of just one colour keeps both the hardware construction and control software fairly simple.
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