Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 17.14, Problem 48SEP
To determine
When you pull a bone-ligament-bone complex, failure is observed in the ligament substance if the strain rate is high. If the strain rate is low, the failure is observed in the bone close to the ligament insertion. What might be the reason for this behavior.
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Question 2
In designing prosthetic sockets, the latter will need to be experimentally tested for their
structural integrity. Figure 2 shows one such design of a prosthetic socket which is made of
carbon fibre composite. Strain gauges are installed to record the strains at various locations of
the legs during walking and the readings are recorded using a telemetry system to detemine
the critical stressed area. At a particular strain gauge location indicated in Figure 2, the
readings recorded by one of the 45° strain gauge rosettes are:
Ea = 2500 x 10*, es = 1500 x 10°, & = -950 x 10*
Using Mohr's Cicle or otherwise, detemine:
(a) the principal strains and the direction of the maximum principal strain relative to
the gauge "a".
(b) the corresponding principal stresses and sketch the results on a properly oriented
element.
You may assume that the prosthetic socket is made of polypropylene whose Young's
modulus of 1.0 GPa and Poisson ratio of 0.3.
Figure 2
Chapter 17 Solutions
Foundations of Materials Science and Engineering
Ch. 17.14 - Explain the difference between a biomaterial and...Ch. 17.14 - Explain why bone may be classified as a composite...Ch. 17.14 - Prob. 3KCPCh. 17.14 - Prob. 4KCPCh. 17.14 - Prob. 5KCPCh. 17.14 - What is stress shielding? How can it be avoided?Ch. 17.14 - Prob. 7KCPCh. 17.14 - What properties of biopolymers make them suitable...Ch. 17.14 - Prob. 9KCPCh. 17.14 - Prob. 10KCP
Ch. 17.14 - Prob. 11KCPCh. 17.14 - Prob. 12KCPCh. 17.14 - Prob. 13KCPCh. 17.14 - Prob. 14KCPCh. 17.14 - Prob. 15KCPCh. 17.14 - Prob. 16KCPCh. 17.14 - Prob. 17KCPCh. 17.14 - Prob. 18KCPCh. 17.14 - Prob. 19KCPCh. 17.14 - Prob. 20KCPCh. 17.14 - Prob. 21KCPCh. 17.14 - Prob. 22KCPCh. 17.14 - Prob. 23KCPCh. 17.14 - Prob. 24KCPCh. 17.14 - Prob. 25KCPCh. 17.14 - Prob. 26KCPCh. 17.14 - What is tissue engineering? What is the principle...Ch. 17.14 - Prob. 28KCPCh. 17.14 - Prob. 29KCPCh. 17.14 - Prob. 30AAPCh. 17.14 - Prob. 32AAPCh. 17.14 - Prob. 33AAPCh. 17.14 - Prob. 34AAPCh. 17.14 - Prob. 39SEPCh. 17.14 - Prob. 40SEPCh. 17.14 - Prob. 41SEPCh. 17.14 - Prob. 42SEPCh. 17.14 - Prob. 43SEPCh. 17.14 - Prob. 44SEPCh. 17.14 - A bone has fractured along an inclined plane as...Ch. 17.14 - Prob. 46SEPCh. 17.14 - Prob. 47SEPCh. 17.14 - Prob. 48SEPCh. 17.14 - Prob. 49SEPCh. 17.14 - What role does the water content play in the...Ch. 17.14 - Prob. 51SEPCh. 17.14 - Prob. 52SEPCh. 17.14 - When you wake up in the morning, you are taller...Ch. 17.14 - Prob. 54SEPCh. 17.14 - Prob. 55SEP
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