case studies ii flexibility of multiple read out modes

... Analysis Case Studies I1 FAILURE ANALYSIS CASE STUDIES I1 A sourcebook of case studies selected from the pages of Engineering Failure Analysis 1997-1999 Edited by D.R.H JONES Department of Engineering ... Analysis Case Studies I1 comprises 40 case studies describing the analysis of real engineering failures which have been selected from volumes 4, and of Engineering Failure Analysis The case studies ... fracture of the case can be found from the standard expression [41 r =2zk,(r:3 - r:) ' (8) where Y, (= 25 mm) is the outer radius of the case, and rz (= 23.5 mm) is the inner radius of the case Since...

Ngày tải lên: 12/03/2015, 15:28

... reached two out of five mothers at least twice and just over half of all primary school children at least twice • 83% of coverage included tips on food hygiene, 83% included mentions of the schools ... who would campaign in favour of the amendment and table it on the floor of the House of Commons This included drafting speeches used in the House during the passage of the Bill • Identifying and ... all railway substitution services carried out by vehicles which meet the accessibility requirement expected of licensed taxis as set out under Section 32 of the Disability Discrimination Act 1995...

Ngày tải lên: 13/12/2013, 04:15

... genotype III genotype III genotype III genotype III genotype III genotype III genotype I genotype I genotype III genotype III genotype III genotype III genotype III genotype III genotype III genotype ... III genotype III genotype III genotype III genotype III genotype III genotype III genotype III genotype III genotype III genotype III genotype III genotype III 'DENV-1 sequenced in the study are ... Delhi Most of the Indian DENV-1, grouping in genotype III were quite diverse, giving rise to distinct lineages Thus, there has been persistence of multiple lineages of DENV-1 genotype III during...

Ngày tải lên: 12/08/2014, 04:21

... Analysis Case Studies I1 FAILURE ANALYSIS CASE STUDIES I1 A sourcebook of case studies selected from the pages of Engineering Failure Analysis 1997-1999 Edited by D.R.H JONES Department of Engineering ... Analysis Case Studies I1 comprises 40 case studies describing the analysis of real engineering failures which have been selected from volumes 4, and of Engineering Failure Analysis The case studies ... fracture of the case can be found from the standard expression [41 r =2zk,(r:3 - r:) ' (8) where Y, (= 25 mm) is the outer radius of the case, and rz (= 23.5 mm) is the inner radius of the case Since...

Ngày tải lên: 13/08/2014, 15:22

... Offshore failures; Rope failures Introduction Beneath the South Atlantic waters off the coast of Brazil there are several large reservoirs of oil Much of this oil is located in water depths of ... Establishment of the initial, at rest, state of stress in an homogeneous half space of the clay profile (2) Establishment of stresses and strains in each element resulting from “excavation” of the trench ... spiral strand consists of concentric helical layers of wire (Fig l(a)) The outer layers of a spiral strand, which constitute the bulk of the cross section, generally have wires of the same diameter,...

Ngày tải lên: 13/08/2014, 15:22

... result of the fracture Since the crack had only opened by about mm, it was concluded that creep of the material accounted for most of the increase in circumference, of about 0.23% Some bulging of ... large pit (0,)which opens to the outer surface of the 12 mm thick section through the skin of the tank Fig Close-up of set of pits (arrows) on the outer surface of the critical weld, with brittle ... side of this weld The metallographic examination of a section through the centre of the boat sample revealed a crack that extended from the weld root to within 2mm of the outside surface of the...

Ngày tải lên: 13/08/2014, 15:22

... stress (at the outer surface of the tank) varying between about 1.8 MN m-* at short times and about 1.5 MN m-2 at six months (‘about’ because of the use of creep modulus instead of stress relaxation ... of oil spilling out of the fractured stern section, and the degree of corrosion on the parts of the shell free from oil, prevented a detailed examination of the entire shell Periodic checks of ... effect of the joint with the base of the container in case (i) and the similar effect of change of wall thickness in case (ii) The value of C varies between C = and C = 1.82 For a flexible base...

Ngày tải lên: 13/08/2014, 15:22

... prior to the completion of the ground bar weld This procedure resulted in an area of no weld on the outer lower edge of the ground bar joint, which, together with the lack of penetration defects ... adapter made of En32 (carbon case- hardening steel) was press fitted into the end of the piston rod made of En9 (“55” carbon steel) The area on the adapter that was to be welded was blanked off during ... production of the actuators within two weeks No further weld fractures were reported A large number of metallurgical aspects of the weld was considered in this investigation, most of which were not profound...

Ngày tải lên: 13/08/2014, 15:22

... estimate of about 80 MN mP2,and with a lower bound of about 55 MN m-2 for the inherent strength of the composite nylon material The argument may thus be summarised The combined effects of a geometric ... material of the tank was also in a state of strain produced by cold moulding, so that an extra component of about 20 MN mP2must be added to the magnified stress, giving a total stress of about 59 ... use of riveting to fix such thin-section aluminium sheet in the vicinity of cut-outs was probably more damaging than the shape of the windows In fact, none of the cracks in the body or wings of...

Ngày tải lên: 13/08/2014, 15:22

... Analysis Case Studies II D.R.H Jones (Editor) 200 I Elsevier Science Ltd All rights reserved 199 FAILURE ANALYSIS AND EXPERIMENTAL STRESS ANALYSIS OF A THREADED ROTATING SHAFT R B TAIT* Department of ... technique of heat treating first, followed by finish grinding of the threads, led to the inherent thread root defects Thus, by reversal of this process, i.e heat treatment after thread grinding, ... by the action of the nut In this type of connection, the inner faces of the wedges apply a radial pressure on the outer surface of the pipe and deforms it permanently The extent of deformation...

Ngày tải lên: 13/08/2014, 15:22

... Increase the radius of the filler between the head and shank of the bolt (3) Use thread rolling instead of threading for manufacturing the thread form (4) Consider the use of forging for producing ... series of spindle failures were the result of a high stress, ductile fatigue process that was caused by significant out -of- alignment of the actuating mechanism during service During an outage, ... been shown that thread re-profiling and shot peening can mitigate fatigue failure in valve spindles Also regular checks of actuating system out -of- alignment should be carried out together with...

Ngày tải lên: 13/08/2014, 15:22

... Ii 16 PH I mol I-' of H+ t Neutral solution Fig A5 I mol I-' of OH- Failure Analysis Case Studies II D.R.H Jones (Editor) 2001 Elsevier Science Ltd .All rights reserved 30 CREVICE CORROSION OF ... or decrease the rates of corrosion The basic principles are then applied to the analysis of three case studies of corrosion failure in heating systems: rusting through of mild steel radiators ... ionic mass of CI- is 35, and the molar mass of NaCl is 58 The 250ppm of C1- is therefore equivalent to (58/35) x 250=414ppm of NaC1 The ionic mass of SO:- is 96, and the molar mass of Na2S0, is...

Ngày tải lên: 13/08/2014, 15:22

... Henshaw".", V Wood", A.C Hallb The University of Tulsa, Department of Mechanical Engineering, 600 South College Avenue, Tulsa, OK 74104, U.S.A The University of IIIinois, Materials Science and Engineering, ... little force Of course, the one element that each of these three failure modes has in common is the presence of fractured pieces of the release button It is ironic that the breaking away of these ... to thermal gradients are not the major cause of cracking Hence, for the analysis of the cause of failure of this case, a metallographic investigation of the failed component seems more appropriate...

Ngày tải lên: 13/08/2014, 15:22

... initiation or spreading of cracks in the case of the static and dynamic loadings occurring on the bridge Systematic SEM investigations of the morphology of the fracture surfaces of the wires confirmed ... occurred as a result of propagation of these small cracks to the outer surface of the tube The failure could be prevented by maintaining the temperature of the tube at the flame side of the burner, ... the length of the external stirrup reinforcement, and brown-coloured corrosion products of steel were observed leaking out of these cracks Through an analysis of the concrete and of the corrosion...

Ngày tải lên: 13/08/2014, 16:20

... effect of H has been the subject of extensive studies to understand the mechanisms of degradation in mechanical properties of metals and alloys because industries often encounter failure of products ... the case of a reduction ratio of 30% is given in Fig From this, it can be seen that the rupture elongation of hydrogen-charged specimens is very markedly reduced The results of obscrvations of ... from low temperature HE The process of H cracking is the result of one or more of the micro-mechanisms such as: (i) cleavage, (ii) intergranular decohesion, or (iii) microvoid coalescence All the...

Ngày tải lên: 13/08/2014, 16:20

... deformation and smearing is visible The sections of the edges of a used and of a retrieved outer race are compared in Fig 4b -ii and b-iii The cross sections of the edges clearly show extensive deshaping ... mechanism of damage Detailed views of the sections of interest of each component are discussed in the following with the help of the micrographs in Fig The worst condition was that of the cage; ... photograph in Fig 4c-i shows delamination of surface layers of the steel inner race It can be seen, at a higher magnification in Figs 4c -ii and c-iii, that a layer of the cage material was smeared on...

Ngày tải lên: 13/08/2014, 16:20

Ngày tải lên: 13/08/2014, 16:20

... discount outlets, where consumers can buy quality goods at reasonable prices Table 6: The Trend of Purchasing Place of Kids Apparel Source: Samsung DesignNet 19 Journal of Business Case Studies ... channels of distribution are the increasing market shares of discount stores, and the rise of Internet shopping These two channels have stolen the market share of previously dominant 14 Journal of ... able to deepen their understanding of channel strategy in a macro 20 Journal of Business Case Studies – November/December 2009 Volume 5, Number social context Case Description Oliver was originally...

Ngày tải lên: 17/04/2013, 20:23

... productivity and quality of the developed software The outcome of several of these improvement initiatives was summed up in an article in Communications of the ACM [10] Claims of order of magnitude improvements ... Here we report eight case studies, and examine what claims are made about knowledge management in each of them, and describe in what organisational setting each of the case studies were performed ... number of case studies found, which also limit the possibility to draw general conclusions Conclusions and Further Work We have analysed eight case studies of knowledge management systems in software...

Ngày tải lên: 16/01/2014, 16:33

... long forms only) • Source (name of river basin) Transfer of water out of the basin: • Volume transferred (ML); • Source (name of river basin) To determine the volume of water being discharged back ... range of issues these include: • a broader assessment of the consequences of economic growth; • the contribution of sectors to particular environmental problems; and • sectoral implications of environmental ... environmental use; • volume of unallocated resources; and • mean annual runoff Average annual water resources will give an indication of the long term availability of water A limitation of this approach...

Ngày tải lên: 17/02/2014, 10:20