Stresses in the vicinity of an un-reinforced mitre intersection: an experimental and finite element comparison

The experimental investigation reported provides elastic stresses in the vicinity of the unreinforced intersection of a single 90° mitred bend, subjected to an in-plane bending moment. The specimen was extensively strain gauged on the outer surface. A small number of rosettes were also laid on the inside surface close to the welded intersection. The procedures used for the successful installation of the inside surface gauges are discussed. In the experiment, consideration was also given to deflections and rotations. Satisfactory comparisons with adaptive-p thin-shell finite element results were obtained in general and differences are explained in terms of the known experimental variables and finite element approximations. The nature of the stresses at such intersections is discussed and various methods of obtaining fatigue 'hot-spot' stresses are considered

Barriers to the effective use of finite element analysis in industry

This workshop represents the first step in a comprehensive and wideranging pan-European information gathering exercise on a topic that is at the heart of the FENET project. The following three categories of industrial organisation have been identified and all have a valuable input to the workshop. The FENET world-wide survey, which sought to establish the significance of barriers to the effective use of finite element analysis across a range of industry sectors, including Aerospace, Land Transport, Biomedical, Civil Construction, Consumer Goods, Marine and Offshore, Power and Pressure Systems and Process & Manufacture, ran from November 2002 - July 2003. The survey, consisting of over 450 questions, included a wide range of issues covering education and awareness, the staffing of FE projects, the cost of FE products; support-related matters in the widest sense, and an extensive list of functionality-related matters, including integration of the analysis function. Particular emphasis was placed on the topics of multi-physics & analysis technology, life extension & durability and product & system optimization, as these are identified themes within the FENet project

Bringing the past to heel: History, identity and violence in Ian McEwan's Black Dogs

Ian McEwan's 1992 novel Black Dogs employs postmodern understandings of history while also critiquing these same perspectives. In particular, by depicting the efforts of its protagonist, Jeremy, to write a memoir of his parents-in-law, it draws attention to the subjectivity of historical writing. While this quality has led some critics to condemn the novel for its escapism and amorality, the authors of the essay argue that Black Dogs is a statement about the necessity of history rather than its futility. Indeed, they read the text as a dramatization of humanity-s ability to bear rather than escape the often troubling burden of the past and an endorsement of the writing of history despite the awareness that historiography, while serving deep-seated human needs, is always problematic

A review of literature for the structural assessment of mitred bends

This paper presents a state-of-the-art review of literature available for the structural assessment of all types of mitred pipe bends. Compared with smooth bends, the volume of literature available for mitres is less extensive and its scope is not as wide. Historically, this reflects a reduced application level, as well as a less demanding range of applications, such as non-high temperature use. There is also the issue that an analysis of a mitred bend is complicated by discontinuity stresses, as well as those due to cross-section ovalisation. This fact delayed the development of non-linear analysis of mitred bends. Nevertheless, there is now a substantial body of work on mitred bends. This review tabulates and characterises all publications to date in chronological order. The details of experimental specimens are highlighted, with a view to these perhaps providing useful verification data for any future finite element analysis for example. Issues of particular interest to pipework designers are discussed, including the effects of combinations of loading, out-of-circularity, tangent pipe length and flanges. Failure characteristics and loads are discussed where relevant. Topics for further research are also noted. For example, comprehensive design curves do not exist for the elastic and plastic behaviour of all mitre types, over a practical range of geometry and loading parameters. Similarly, there is still scope for further work on the effect of combined loading, end effects and out-of-circularity. Limit, collapse and burst loads are not yet available across the entire spectrum of bends and loading parameters either. Creep and optimisation represent virgin territory as far as mitred bends are concerned and given that unforeseen vibration is a common source of high-cycle fatigue failure in pipework, there must also be scope for vibration-induced fatigue studies

Spatially Ordered Treemaps

Existing treemap layout algorithms suffer to some extent from poor or inconsistent mappings between data order and visual ordering in their representation, reducing their cognitive plausibility. While attempts have been made to quantify this mismatch, and algorithms proposed to minimize inconsistency, solutions provided tend to concentrate on one-dimensional ordering. We propose extensions to the existing squarified layout algorithm that exploit the two-dimensional arrangement of treemap nodes more effectively. Our proposed spatial squarified layout algorithm provides a more consistent arrangement of nodes while maintaining low aspect ratios. It is suitable for the arrangement of data with a geographic component and can be used to create tessellated cartograms for geovisualization. Locational consistency is measured and visualized and a number of layout algorithms are compared. CIELab color space and displacement vector overlays are used to assess and emphasize the spatial layout of treemap nodes. A case study involving locations of tagged photographs in the Flickr database is described

'Mrs. Pace' and the ambiguous language of victimization

'Justice' is a historical phenomenon: legal institutions and cultural attitudes (along with their various languages) vary across geography and time. At the same time, enduring elements of human psychology and recurring patterns in social structures provide continuities which allow the past to speak to contemporary issues. To understand the 'experience of justice', the historical tension between continuity and change and the many factors influencing the perceived boundaries of acceptable behaviour must be addressed. One approach involves examining specific experiences of victimisation, which is particularly important in the case of those who have traditionally been socially, legally and politically disadvantaged, such as women. However, while it is primarily an admission of powerlessness, 'victimhood' - the active claiming of victim status - can also be a source of social power. Only 'victims', after all, are in the position to claim some form of justice, whether retributive or restorative. However, one of the main problems with gaining a historical perspective on female victims of domestic violence is that their voices have relatively rarely survived in the public record. A valuable exception is the case of Beatrice Annie Pace. The wife of a Gloucestershire quarryman and sheep farmer, she was tried and acquitted for murdering her husband with arsenic in 1928. Extensive pre-trial hearings had revealed the horrifying extent of the dead man's physical and psychological brutality throughout eighteen-years of marriage. The dramatic twists and unexpected developments in the case were eagerly picked up by the voracious newspaper media, making the trial a sensation. 'Mrs. Pace', as she was known, achieved celebrity status; no longer simply an individual, she also became a popular and sympathetic media persona. This chapter explores the issue of justice by looking at the languages surrounding the Pace case. While legal issues raised in the trial (such as the accused's treatment by the police and coroner's jury) even led to questions being asked in Parliament, Pace was not only talked about but also received the rare opportunity to present her own version of events to the public which had so eagerly supported her. Following her acquittal, she sold her story to a tabloid, and the married 'martyrdom' which she revealed in a serialised memoir riveted newspaper readers across Britain. In this context, she had a great deal to say about her experience of abuse, the nature of married life and her treatment by the British legal system. The result is an invaluable resource for examining not only how one woman came to grips with her experience but also to compare her own views with those of other observers of the case. For some, Pace's suffering was evidence of serious shortcomings in British society and law. Pace's own commentary is both more personal and, ultimately, more ambiguous about the meaning of her victimisation and ultimate vindication. Thus, this case allows a unique, historically aware consideration of the complicated nature of the ways in which one woman created justice and resisted injustice through one of the only vehicles available to her: language

Informatics Research Institute (IRIS) June 2001 newsletter

Welcome to the first edition of the Information Systems Institute's Research Newsletter. This Newsletter will be published four times a year (March, June, September and December), and will be published on the ISI research web page. The aim of the Newsletter is to facilitate the exchange of information related to research activities in ISI. Submissions are welcome from staff and research students