Ex3700_08 - AERO3700 DECEMBER 2008 STUDENT NAME STUDENT NUMBER Page 1 of 15 CARLETON UNIVERSITY FINAL EXAMINATION December 2008 DURATION 3 HOURS

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AERO3700 DECEMBER 2008 Page 1 of 15 STUDENT NAME: ______________________________ STUDENT NUMBER: ____________________________ C A R L E T O N U N I V E R S I T Y DURATION: 3 HOURS Number of Students: 82 Mechanical & Aerospace Engineering AERO3700 Instructor(s) M. McDill Students MUST count the number of pages in this examination paper before beginning to write, and report any discrepancy immediately to a proctor. The Examination paper has 15 pages. In addition to this Examination paper, students require: an examination booklet yes ___ no _X_ a Scantron sheet yes ___ no _X_ The Examination paper MUST BE HANDED IN . ALL questions have equal value [10]. Useful equations are attached. One blank page for extra work is attached. 1. Two paragraphs are presented below. Write the missing words in the available space(s). Elastic deformation is __________________ strain and is proportional to the applied stress. There are three elastic moduli: the ___________ ___________ is the axial stress per unit strain; the ___________ ___________ is the shear stress per unit strain and the ___________ ___________ is the hydrostatic stress (or pressure) per unit volume change. The elastic moduli generally ___________ with increasing temperature. ___________ strain is not reversible. It is permanent. The critical stress to initiate plastic strain is called the ___________ ___________ . Further stressing (loading) produces both elastic and plastic strains although the latter predominate. The ultimate tensile strength is the maximum stress based on ___________ ___________. Plastic deformation in crystalline materials occurs predominantly by ___________ ___________ along slip planes. 2. a. Monolithic ceramics lack the fracture toughness needed to be considered for most structural applications in most flight vehicles. Briefly discuss the advantages and disadvantages of using ceramics in components such as turbine disks. Briefly discuss how FINAL EXAMINATION December 2008 AUTHORIZED MEMORANDA Calculator
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AERO3700 DECEMBER 2008 Page 2 of 15 STUDENT NAME: ______________________________ STUDENT NUMBER: ____________________________ ceramic composites such as C/SiC may overcome the disadvantages of monolithic ceramics in components such as turbine disks
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This note was uploaded on 11/13/2011 for the course CIVE 2*** taught by Professor - during the Spring '11 term at Carleton CA.

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Ex3700_08 - AERO3700 DECEMBER 2008 STUDENT NAME STUDENT NUMBER Page 1 of 15 CARLETON UNIVERSITY FINAL EXAMINATION December 2008 DURATION 3 HOURS

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