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Compute the torsional stiffness (GJR) of the beam in given Example.
Example :-
Compute the bending stiffness of a cantilever I-beam (given Figure) of length L = 30 cm, subjected to a tip-shear force Vz = 445 N. The dimensions of the beam are: h = 2.5 cm, b = h/2, t = h/16.
The material is Kevlar-epoxy with the following elastic constants: E1 = 76.0 GP a, E2 = 5.56 GP a, G12 = 2.30 GP a, ν12 = 0.34. The lay-up sequence is [±30/0]S, six laminae (n = 6), with lamina thickness tk = t/6.
If a force of P = 100 N is applied to the handle of the toggle clamp, determine the horizontal clamping force NE that the clamp exerts on the smooth wooden block at E.
A VBE multiplier is designed with equal resistances for nominal operation at a terminal current of 1 mA, with half the current flowing in the bias network. The initial design is based on β =∞and VBE =0.7 V at 1 mA. Find the required resistor value..
How does energy conversion affect the environment?
Assuming standard perception/reaction time and practical stopping distance, determine the grade of the road.
Three identical transformers, as described, are connected with their primaries in Y (solidly grounded neutral) and with their secondaries and tertiaries in Δ. Draw the per-unit sequence networks of this transformer bank.
Two resistances R1 and R2 are connected in parallel. We know that R1 = 90Ω and that the current through R2 is three times the value of the current through R1. Determine the value of R2.
Calculate the conductor temperature when the air temperature is 20°C and the line is subjected to cross flow with a velocity of 10 m/s.
1. An SCR with a 5V gate trigger level is used with a 12V zener diode, and the capacitor is 0.15uF. What value of R2 will give full control of the power to the load down to zero?
State the selection criteria of the chosen materials taking into account the material properties, their cost and their suitability for manufacture - Detail the appropriate properties and criteria for the selection of a metallic, ceramic, polymer an..
Experts are divided about whether fracking results in significant pollution, but some people worry that chemicals used in fracking might lead to pollution of underground supplies of water used by households and farms. First, assume that fracking c..
Do the data provide sufficient evidence to suggest the After scores are indeed higher? Why or why not?
With CC connected, find ωP2. Then find the value of CC that will result in a unity-gain frequency ωt at least two octaves below ωP2. For this value of CC, find ωP1 and Ωz and sketch a Bode plot for the gain magnitude.
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