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Compute approximate values of E1, E2, G12, ν12 for the composite of given exercise. Compare the results obtained using the mechanics of materials approach with the results obtained using more accurate formulas which are programmed in the accompanying software. Comment the results.
Exercise Give an approximate value for the compressive strength of an Al-Boron composite with Vf = 0.4.
Aluminum 2024 has E = 71GPa, Poisson = 0.334, G = 26.6 GP a, yield strength = 76 MP a, fatigue limit = 90 MP a, elongation = 22%. Boron fibers have E = 400 GP a, ultimate strength = 3.4 GP a, Poisson = 0.25. Note that Boron fibers tend to be perfectly straight and that aluminum has a linear shear stress-strain plot before it yields
A 10-V independent voltage source is in series with a 2-Aindependent current source. What single source is equivalent to this series combination? Give the type and value of the equivalent source.
Give the stationing and elevations of the PC, PT, PVCs, and PVTs - Design a 90- degree ramp that connects the northbound direction of travel to the eastbound direction of travel.
Comparison of companies to adopt cloud computing
Determination of a sized design layout of an aircraft concept to meet a given mission specification.
ENG1068 Electronic Instrumentation Calculate the required value of resistance and calculate the required value of capacitance - Provide the complete circuit diagram of the rectifier circuit (including the values of R and C)
Discuss the value of risk analysis and how the process can be used to derive project management decisions under conditions of uncertainty
Draw a schematic diagram of the ideal transformer connected as an autotransformer, showing the voltages, currents, and dot notation for polarity.
Methanol, CH3OH, is burned with 200% theoretical air in an engine and the products are brought to 100 kPa, 30oC. How much water is condensed per kilogram of fuel?
The airstroke actuator at D is used to apply a force of F = 200 N on the member at B. Determine the horizontal and vertical components of reaction at the pin A and the force of the smooth shaft at C on the member.
A class AB output stage using a two-diode bias network as shown in Fig. 12.14 utilizes diodes having the same junction area as the output transistors. For VCC =10 V, IBIAS = 1 mA, RL =100Ω, Βn =50, and /VCEsat / =0 V, what is the quiescent curren..
How are design changes initiated? How are priorities established? How are design changes implemented? Identify the steps involved in system modifications.
If velocities at the crest and toe of the model spillway are determined to be 1 ft/s and 8 ft/s, respectively, what are the corresponding prototype velocities? Use the Froude law.
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