Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 17.14, Problem 40SEP
To determine
Determine the size of the patellar tendon graft required to match the strength and stiffness of ACL.
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Besides using strain gauges, name and describe two
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If a specimen percentage elongation is observed to
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Calculate the final length of the specimen at the
fracture.
a. 13 mm
b. 1.3 mm
c. 1300 mm
d. 130 mm
A new high stiffness plastic material has a length
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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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- 1. Draw the stress-strain diagram and mark the regions. How can you use stress-strain diagrams in selecting the most appropriate material for an orthopedic biomaterial?arrow_forwardA specimen has a yield strength of 1390 psi at room temperature (70 degrees F) and 910 psi when it is heated to 100 degrees F. The plastic specimen has a strength loss from 70 degrees F to 100 degrees. (Hint: use percent change) of 45.6% as 70 degrees is the reference value 52.7% as 100 degrees is the reference value 25.3% as 100 degrees is the reference value 34.5% as 70 degrees is the reference valuearrow_forwardDoes UTS increase or decrease when increasing the strain rate? With explanation for the reason please.arrow_forward
- A tensile test was conducted on a mild steel bar. The diameter and the gauge length of the bar were 3cm and 20cm respectively. The extension was 0.21mm. What is the value of strain?arrow_forwardGive some examples of the Deformation of a body?arrow_forwardA sample of crosslinked polvisoprene rubber undergoes a constant strain rate axial tension experiment The initial sample measurements are 3.60 cm gauge length (axial direction); 0.b2 cm wide; 0.1/ cm thick:arrow_forward
- A material has a linear elastic perfectly plastic stress-strain. A cylindrical specimen of that material having an initial length of 35 mm and a tadius of 7 mm is pulled until it elongates 0.8mm. a. Calculate the stain and the corresponding stress at that elongation value. b. Afterward, the specimen is released to zero stress level, how does the final length of the specimen compare with its original length? How much plastic deformation remains if it exists?arrow_forwardA cylindrical metal specimen having an original diameter of 12.8 mm (0.505 in.) and gauge length of m (2.000 in.) is pulled in tension until fracture occurs. The diameter at the point of fracture is 6.60 mm (0.260 in.), and the fractured gauge length is 72.14 mm (2.840 in.). Calculate the ductility in terms of percent reduction in area and percent elongation.arrow_forwardICLASS DISCUSSION ITEM 9.8 Piezoresistive Effect in Strain Gages For a typical metal foil strain gage with a gage factor of 2.0, how large is the piezo- resistive effect in comparison to the effects of change in area and change in length?arrow_forward
- Why do the supports that resist a force, such as a pin, restrict displacement?arrow_forwardGiven the following stress-strain graph:a. is the modulus of elasticity of "A-514" greater, less or equal to the one of "A-572"?b. from the previous question, make an estimatio for both of them, check that the graphic comes in %c. If we were to test these materials in a universal tension equipment, which one would withstand more load?d. If we were to test these materials in a universal tension machine, which one would elongate the most before fracturing? would elongate the most before fracturing? e. Of the 6 materials shown, do any behave as brittle materials? f.arrow_forwardQuestion 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 2arrow_forward
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