Tài liệu ELASTICITY IN ENGINEERING MECHANICS pdf

... determine the strain MF i of any in nitesimal line element (with direction cosines N i ) in the medium. Engineering Definition of Strain. In engineering practice it is common to define the strain ... principal strains using a somewhat different method. 2-10 RECIPROCAL ELLIPSOID. PRINCIPAL STRAINS. STRAIN INVARIANTS 99 We may also show that the shearing strains vanish between line eleme...

Ngày tải lên: 21/02/2014, 18:20

... (Confidentiality) Information Security Information Security Information Availability Information Availability Information Confidentiality Information Confidentiality Information Integrity Information Integrity EMC’s ... times  Contain costs  Cannot add resources Pain Points  Inconsistent service levels  Gaps in coverage  Growth in complexity and effort  Growth in cost and risk to...

Ngày tải lên: 16/12/2013, 15:15

... gotta copy /bin/sh to some hidden place and give it suid permissions: sh-2.03$ cp /bin/sh /dev/nul In the strange case the admin looks at /dev, he wouldn't find something unusual ... harmless hacking, then forget everything you think you've learnt from them. You won't understand some things from my tutorial until you unpoison your brain. Some definitions ......

Ngày tải lên: 23/12/2013, 19:15

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Ngày tải lên: 24/12/2013, 07:17

... processes involved in making individual parts using machinery, typically ma- chine tools, are called unit processes. Typical unit processes are casting, sintering, forming, material removing processes, ... developments in machine tools and machining technolo- gies, the accuracy achievable has been increased as shown in Figure 1.1-2 [2]. The increase in productivity in terms of cutti...

Ngày tải lên: 19/01/2014, 19:20

... problem—install both. They coexist beautifully on a single Mac, and can even use the same copy of Windows. Together, they turn the Intel-based Macintosh into the Uni-Computer: the single machine ... OS/2, or MS-DOS. Having virtualization software on your Intel Mac is a beautiful thing. You can be working on a design in iWork, duck into a Microsoft Access database (Windows only), look...

Ngày tải lên: 21/01/2014, 04:20

... select Define. Now continue on with the standard printing procedure. It is common to turn off grid boxes on a spreadsheet before printing it. Other formatting features include scaling the spreadsheet ... altering the numeration of the list or for changing the number to a bullet point. 109 Figure 6.9: Choosing the Type of Bullet to Add to Your Document Increasing and Decreasing Indents To incr...

Ngày tải lên: 24/01/2014, 14:20

... ( #  -'(  ETHICS IN ENGINEERING Lecture 1/4   $ '"%$"    (  !  !#  %    !+  .   ...

Ngày tải lên: 13/02/2014, 20:20

... both measured in an anticlockwise sense. A four-bar chain ABCD with frictionless joints is shown in Fig. 7.27. Substituting in (i) gives Neglecting the inertia of AB, determine the From ... of point B, relative to A, is (6i+3k) m. Determine the position of B relative to the origin of the co-ordinate 1.4 Determine the unit vector for the line joining poin...

Ngày tải lên: 13/02/2014, 23:20

... curve connecting two points in space is a continuous deformation of a straight line segment, and this deformation has a continuous inverse. A straight line segment can be viewed as an interval a ... orientation of the coordinate axes by rotating them about the origin. The coordinates of the same point in space are different in the original and rotated rectangular coordinate systems. Alge...

Ngày tải lên: 14/02/2014, 10:20