Transcript Tensile Strength of Composite Fibers.ppt

Tensile Strength of
Composite Fibers
Author: Brian Russell
Date: November 20, 2008
SMRE - Reliability Project
Objective:
Using data provided by “Reliability Modeling,
Prediction, and Optimization”, Case 2.6, “Tensile
Strength of Fibers” I will explore the tensile
strength of silicon carbide fibers after extraction
from a ceramic matrix.
Description of System:
• Estimate fiber strength after incorporation into the
composite.
• Fiber strength is measured as stress applied until
fracture failure of the fiber.
• The objective of the experiment was to determine
the distribution of failures as a function of gauge
length of the fiber after incorporation into the
composite.
Methodology used for
Analysis:
• Data will be imported to Minitab so that
mathematical manipulation can be performed
to produce transfer functions.
• Using Excel, Monte Carlo simulations will be
performed to simulate a larger population
• Equations will be manipulated using Maple to
produces the appropriate Reliability functions
and display the data graphically.
Expected Outcome:
The data will show if there is a significant difference in
strength of varied lengths of carbon fibers.
References: Reliability Modeling, Prediction, and Optimization,
Wallace R. Blischke and D.N. Prabhakar Murthy, published 2000
by Wiley-Interscience Publication