Fabrication and testing laboratory, Electrical Engineering

You will manufacture composite beams using an epoxy matrix (West Systems 105 epoxy resin + West Systems 206 slow hardener) and one of the following reinforcements:

 1.  Unidirectional S-glass fibers (nominally 0.006" thick/ply)

2.  Unidirectional carbon fibers (nominally 0.008" thick/ply)  

Your group will fabricate two composite plates.  Each plate will have nominal dimensions of 12" long X 12" wide X 0.075" - 0.15" thick.  All plates should have a symmetric layup.  To simplify fabrication, in preparing your beams use only 00 and 900 ply orientations.  The two plates should have substantially different properties (whether due to differences in layup or reinforcement properties or both).  After the plates have cured, you will cut at least eight (8) 1" wide X 12" long beams from each plate.  At least four (4) beams each will be tested in three- and four-point bending.

 In preparation for plate fabrication, your team needs to design the two plate types.  Assume the 1" wide beams will be tested using a total span of 8" and an applied load span of 2.5" (4-point bend).  All beams must withstand at least 1000N before first ply failure.  When you come to class on 11/21, you will need to turn in the following information:  

 Plate 1:

 Material and orientation for each ply

 Expected applied load (3-point bending) at failure

 Expected applied load (4-point bending) at failure

 Expected location of first ply failure

 Expected mid-span displacement at failure for 3-point bending

 Expected mid-space displacement at failure for 4-point bending

  Plate 2:

 Material and orientation for each ply

 Expected applied load (3-point bending) at failure

 Expected applied load (4-point bending) at failure

 Expected location of first ply failure

 Expected mid-span displacement at failure for 3-point bending

 Expected mid-space displacement at failure for 4-point bending  

List any assumptions (including material properties with sources) and uncertainties that will affect your predictions.  Note that some consolidation of the beams will occur during curing.

Posted Date: 2/20/2013 8:23:36 AM | Location : United States







Related Discussions:- Fabrication and testing laboratory, Assignment Help, Ask Question on Fabrication and testing laboratory, Get Answer, Expert's Help, Fabrication and testing laboratory Discussions

Write discussion on Fabrication and testing laboratory
Your posts are moderated
Related Questions
Analogue Threshold switching a) Include a variable potential divider to the schematic diagram to control the transistor base voltage b) Include the potential divider compon

What is Capacitance -  Capacitance is explained to be the amount of charge Q stored in among the two plates for a potential difference or voltage V existing across the plates.

Q. What do you mean by Lumped-circuit elements ? Electric circuits or networks are formed by interconnecting various devices, sources, and components. Although the effects of e

Q. Explain Emergency Repairs to rail fracture? Emergency Repairs - The fractured rails shall be joined by using the arrangements clamps, fish plates. If the gap at fracture doe

T h er e are three main types -   The Shunt Connected DC motor in which the armature coils are connected in parallel with the field coils   The Serie

Illustrate the satellites in outer space Satellites in outer space transmit signals to Earth. Computers in vehicles (for example car, airplane or ship) receive and interpret th


Q. Explain working of Ammeter? In order to measure the current through a wire or line of a circuit, an ammeter is connected in series with the line. A practical ammeter can usu

A preliminary design with ideal resistors, inductors and capacitors, will get 25 marks. If the design does not meet the specifications then one mark will be deducted following the

The circuit is altered by replacing the capacitor, C1 with an inductor of 150mH and left with the switch in position (a) for a long time. At time t=0, the switch is moved from posi