A ceramic part for a jet engine has a yieldstrength of 66,215 psi and a plane strainfracture toughness of 5000 psi (in) ¾. To besure that the part does not fail, we plan toassure that the maximum applied stress isonly one-third the yield strength. We use anondestructive test that will detect anyinternal flaws greater than 0.05 in. Iong.Assuming that f = 1.2 , does our non-destructive test have the requiredsensitivity? Type 1 for yes and O for no.

GivenYield strength=66215psiplane strain fracture toughness=5000psiin12

Answered: A ceramic part for a jet engine has a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

You have been asked to draw up a specification for a ceramic cladding tile that is likely to experience tensile stresses of 64 MPa during its installation and service lifetime. If the ceramic has a specific surface energy of 0.28 J/m2 and its Youngs Modulus is 82 GPa what would be the maximum length of an internal flaw that would not result in fracture of the tile? (This question has only one correct answer) O a. 3.79 mm O b. 7.14 mm c. 7.57 um Ο d.3.79 μm O e. 3.57 µm O f. 3.57 mm g. 7.14 um
could you answer the question please ?
QI/ If the thermal shock resistance of RBSN is 2214 w/m, poission ratio= 0.2 , cofficient of expansion= 2.6 x 10 /k, thermal conductivity=9 w/ m.k, specific heat= 0.86 j/ g.k ,thermal diffusivity= 4.4 x10 m /s, modulus of elasticity = 200 Gpa Calculate : 1.fracture streangth in Mpa 2. the density in Mpa 3. the thermal shock resistance in m' k/ s
Compute the fracture stresses in MPa for internal cracks that are 6.00 cm long in a composite of Kevlar 49 in F-155 epoxy with a fracture toughness of 23.0 MPa-m1/2.
Example (4): A cylindrical specimen of steen having an original diameter of 12.8 mm (0.50s in.) is tensile-tesled lo fracture and found to have an engineering fracture strength. of $60 MPa (67,000 psi). If its cross-sectional diameter at fracture is 10.7 mm (0.422 inl determine: (a) The ductility in terms of parcent reduciion in area. (b) The true stress at fracture.
A component made of 7075-T6 aluminum alloy has an edge crack of 1.4 mm in length. Plane strain fracture toughness of this alloy is given as 27 MPavm. Geometrical factor of the crack is given as 1.2. (a) If this alloy is subjected to uniaxial tensile stress of 380 MPa, determine whether sudden brittle fracture occurs or not. (b) Calculate the maximum allowable crack size for this component in order not to be failed in brittle manner under a stress of 1000 MPa (Density of steel 7.85 g/cm³, 9.80665 N = 1 kg). Modulus of elastisity, GPa Ultimate tensile Yield strength, Alloy strength, MPa MPa 2014 Al alloy Bronze (92Cu-8Sn) High carbon steel Pure Titanium 97 186 380 72 110 152 380 615 215 240 330 107
A material with an Ultimate Tensile Strength (UTS) of 400 Mpa is loaded cyclically about mean stress of 80 MPa. If the stress range that will cause fatigue fracture in 100 000 cycles under zero mean stress is (+,- )60 MPa, what stress range (in MPa) about the mean of 70 MPa will give the same life
Q1/ Air craft component is fabricated from epoxy composites that have plane strain fracture toughness of (60 MPa m2). It has been determined that fracture results at a stress of (500 MPa) when the maximum (or critical) internal crack length is (6 mm). For the same component and part, will fracture occur at a stress level of (300 MPa) when the maximum internal crack length is (4 mm)? yes or not depending on your solution? Q2/ Polymer (y) has possion ratio (0.35) it faced shearing forces leading to change the shape of the polymer (y) sample. Where the dimensions of sample are (h = 0.5 cm, x 0.9 cm) and (Ax = 0.2 cm) and the shear force is 0.3 KN. Calculate the elastic modulus and the bulk modulus?
A structural beam is built from steel with a yield strength of 345 MPa. The structure has a minimum service temperature of 5 oC, where the fracture toughness of the steel KIC = 60 MPam. What is the minimum surface crack lengths that must be detected by quality control to ensure that the full yield strength of the steel is available in the beam? Assume geometric parameter Y = 1 and plain strain conditions. Answer in millimeters.
An annealed-steel specimen has a 0.750 in. diameter and a 12.000 in. gage length. Maximum load is reached at 60,000 lbs and fracture occurs at 30,000 Ibs. For this steel, E= 360 x 10° psi. (a) Draw a sketch of stress-strain diagram for a typical steel in tension? (b) What is the ultimate tensile strength (UTS)? (c) Why does fracture occur at a lower load than the maximum load? (d) What is the elongation when a tensile stress of 30,000 psi is applied? A 400-mm-long rod with a diameter of 4.5 mm is loaded with a 5000-N weight. If the diameter decreases to 3.5 mm, compute the final length of the rod. 3. 4. A steel rod 1.5 m long and 75 mm x 75 mm in cross-section is subjected to a tensile force of 160 kN. Determine the elongation of the rod, if modulus of elasticity for the rod material is 900 GPa. 5. A hollow cylinder 4.5 m long has an outside diameter of 80 mm and inside diameter of 60 mm. If the cylinder is carrying a load of 75 kN, find the stress in the cylinder. Also find the…
Q3: Two material were tested in tension, the first is aluminum alloy has stress-strain curve define by 300 MPa was fracture after 35% reduction in area. The other a copper alloy has stress-strain curve define by=100+120 MPa was fracture after 98% elongation. Which alloy have more toughness? Support your answer with the sketch.?
Draw the stress strain diagram for a ductile and brittle material and what is the difference in it? What do you understand by strain hardening? What do you mean by percentage reduction in area? Explain the steps in ductile fracture. Explain the modes of failure in tension test.

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS

A ceramic part for a jet engine has a yield strength of 66,215 psi and a plane strain fracture toughness of 5000 psi (in) *. To be sure that the part does not fail, we plan to assure that the maximum applied stress is only one-third the yield strength. We use a