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Article
Publication date: 14 August 2020

Sadik Lafta Omairey, Peter Donald Dunning and Srinivas Sriramula

The purpose of this study is to enable performing reliability-based design optimisation (RBDO) for a composite component while accounting for several multi-scale uncertainties…

Abstract

Purpose

The purpose of this study is to enable performing reliability-based design optimisation (RBDO) for a composite component while accounting for several multi-scale uncertainties using a large representative volume element (LRVE). This is achieved using an efficient finite element analysis (FEA)-based multi-scale reliability framework and sequential optimisation strategy.

Design/methodology/approach

An efficient FEA-based multi-scale reliability framework used in this study is extended and combined with a proposed sequential optimisation strategy to produce an efficient, flexible and accurate RBDO framework for fibre-reinforced composite laminate components. The proposed RBDO strategy is demonstrated by finding the optimum design solution for a composite component under the effect of multi-scale uncertainties while meeting a specific stiffness reliability requirement. Performing this using the double-loop approach is computationally expensive because of the number of uncertainties and function evaluations required to assess the reliability. Thus, a sequential optimisation concept is proposed, which starts by finding a deterministic optimum solution, then assesses the reliability and shifts the constraint limit to a safer region. This is repeated until the desired level of reliability is reached. This is followed by a final probabilistic optimisation to reduce the mass further and meet the desired level of stiffness reliability. In addition, the proposed framework uses several surrogate models to replace expensive FE function evaluations during optimisation and reliability analysis. The numerical example is also used to investigate the effect of using different sizes of LRVEs, compared with a single RVE. In future work, other problem-dependent surrogates such as Kriging will be used to allow predicting lower probability of failures with high accuracy.

Findings

The integration of the developed multi-scale reliability framework with the sequential RBDO optimisation strategy is proven computationally feasible, and it is shown that the use of LRVEs leads to less conservative designs compared with the use of single RVE, i.e. up to 3.5% weight reduction in the case of the 1 × 1 RVE optimised component. This is because the LRVE provides a representation of the spatial variability of uncertainties in a composite material while capturing a wider range of uncertainties at each iteration.

Originality/value

Fibre-reinforced composite laminate components designed using reliability and optimisation have been investigated before. Still, they have not previously been combined in a comprehensive multi-scale RBDO. Therefore, this study combines the probabilistic framework with an optimisation strategy to perform multi-scale RBDO and demonstrates its feasibility and efficiency for an fibre reinforced polymer component design.

Details

Engineering Computations, vol. 38 no. 3
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 1 March 1989

Peter Dunning

INSEAD, the European Institute for Business Administration, at Fontainebleau, near Paris, offers advanced management education for over 400 students a year, mainly through the MBA…

Abstract

INSEAD, the European Institute for Business Administration, at Fontainebleau, near Paris, offers advanced management education for over 400 students a year, mainly through the MBA course. The Library first set up online access in 1984, and now has extensive online training facilities for students, as well as services for professors, researchers and administrative staff. As demand for online training from students has increased, some professors have encouraged Library online specialists to give brief presentations at the start of courses, helping students to aim their information searching directly towards project needs. In 1987, with pressure on the present three online specialists, we started to explore ways of increasing the participation of staff and student end users in their own searching. More attention was given to existing online menu‐driven systems like Textline, while the growth of professional datafiles on France's Minitel videotex system made it worthwhile to explore their potential as subsidiary search options. In 1988, to develop direct end user searching further, two CD‐ROM workstations were installed, which now offer six disc databases on free access. There has also been an exploration of the role of databases issued on floppy disk as offline alternatives. To help campus users understand the range of database options available, a booklet listing by subject major databases accessible on campus, on both online and offline media, was recently issued. Currently, a prototype simple expert system is being developed from this to help users to move between offline and online searching more easily. The present efforts are aimed at a more user‐oriented information access as the Library prepares to transfer next year to a new building.

Details

Online Review, vol. 13 no. 3
Type: Research Article
ISSN: 0309-314X

Article
Publication date: 1 July 2006

Caroline Yeoh, Wilfred How and Victor Sim

The exportability of Singapore’s industrial‐development model to other Asian environments has been one of the hallmarks of the city‐state’s regionalization program, together with…

Abstract

The exportability of Singapore’s industrial‐development model to other Asian environments has been one of the hallmarks of the city‐state’s regionalization program, together with the state‐led, market‐driven intervention that has underscored the citystate’s development strategies. The paper presents an empirical analysis on the portability of this transborder industrialization strategy, and contributes new insights to the discourse on state‐enterprise networks in promulgating transnational entrepreneurial ventures. Empirical evidence from on‐site surveys and interviews in Indonesia, China, Vietnam and India will be presented. Our study concludes that, while the calculated, schematised efforts have been remarkable, this attempt at re‐engineering economic space beyond the city‐state has not fully accounted for the intricacies of either economic, or socio‐political, realities in the host environments.

Details

Journal of Asia Business Studies, vol. 1 no. 1
Type: Research Article
ISSN: 1558-7894

Keywords

Article
Publication date: 1 April 2003

Georgios I. Zekos

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some…

89156

Abstract

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

Details

Managerial Law, vol. 45 no. 1/2
Type: Research Article
ISSN: 0309-0558

Keywords

Article
Publication date: 17 June 2010

Alan M. Rugman

The eclectic paradigm of Dunning (1980) (with its OLI and four motives for FDI framework) can be reconciled with the firm and country matrix of Rugman (1981). However, the fit is…

11379

Abstract

The eclectic paradigm of Dunning (1980) (with its OLI and four motives for FDI framework) can be reconciled with the firm and country matrix of Rugman (1981). However, the fit is not perfect. The main reason for misalignment is that Dunning is focused upon outward FDI into host economies, whereas Rugman’s matrix is for firm‐level strategy covering MNE activity in both home and host countries

Article
Publication date: 17 June 2010

Lorraine Eden and Li Dai

John Dunning introduced the OLI (Ownership‐Location‐Internalization) paradigm 37 years ago to explain the origin, level, pattern, and growth of MNEs’ offshore activities. Over the…

11046

Abstract

John Dunning introduced the OLI (Ownership‐Location‐Internalization) paradigm 37 years ago to explain the origin, level, pattern, and growth of MNEs’ offshore activities. Over the years, OLI has developed into perhaps the dominant paradigm in international business (IB) studies. However, the costs of being a paradigm are reflected in Dunning’s efforts to include an ever‐expanding array of IB theories and phenomena under the OLI “big tent.” In this paper, we focus specifically on the O in the OLI paradigm, tracing the history of Dunning’s ownership advantages. We argue that the modifications of O advantages over the past 37 years, as Dunning attempted to bring all IB phenomena and IB‐related theories under the OLI “big tent,” has had mixed results. However, we continue to believe that the typology of ownership advantages retains its relevance for IB scholars; that O advantages cannot and should not be subsumed within internalization advantages; and that O advantages are necessary for explaining the existence and success of the MNE as an organizational form

Details

Multinational Business Review, vol. 18 no. 2
Type: Research Article
ISSN: 1525-383X

Keywords

Article
Publication date: 1 January 1999

Mike Peters and Klaus Weiermair

The article deals with factors that act as an incentive to internationalisation of the hotels in the small‐to‐medium‐sized enterprises (SME) category in the traditional tourism…

Abstract

The article deals with factors that act as an incentive to internationalisation of the hotels in the small‐to‐medium‐sized enterprises (SME) category in the traditional tourism countries, and also discusses the obstacles to internationalisation. The “OLI” approach according to Dunning (ownership advantages, location‐specific advantages, advantages of internalisation) is tested against the results of a survey of hotelkeepers in the Alpine countries, particularly Austria. It is not just the size of the enterprise that acts as a limit on the extent of internationalisation of SMEs. Other factors that determine the attitude taken towards internationalisation include market intelligence, financing problems, the degree of entrepreneurial spirit, and the specific nature of tourism services.

Details

The Tourist Review, vol. 54 no. 1
Type: Research Article
ISSN: 0251-3102

Keywords

Article
Publication date: 1 March 2008

Peter M. Carlson, Pamela T. Dunning and Jamie N. Atkinson

This article addresses whether ASPA, the primary association of public servants, is able to effectively meet the needs of those who rely upon the organization for professional…

Abstract

This article addresses whether ASPA, the primary association of public servants, is able to effectively meet the needs of those who rely upon the organization for professional development, networking, and for currency in the field. This article follows up on a 2003 survey of members of the American Society for Public Administration (ASPA), and asks a random group of 2007 members what the major challenges of public service are today and if ASPA is contributing to their ability to deal with these issues. The results of the current survey indicate that the challenges remain remarkably similar, and highlight the need for ASPA to modify their approach if the association is to remain relevant and a premier professional society

Details

International Journal of Organization Theory & Behavior, vol. 11 no. 4
Type: Research Article
ISSN: 1093-4537

Article
Publication date: 26 November 2021

Pär Åhlström, Pamela Danese, Peter Hines, Torbjørn H. Netland, Daryl Powell, Rachna Shah, Matthias Thürer and Desirée H. van Dun

Lean remains popular in a wide range of private and public sectors and continues to attract a significant amount of research. However, most of this research is not grounded in…

1299

Abstract

Purpose

Lean remains popular in a wide range of private and public sectors and continues to attract a significant amount of research. However, most of this research is not grounded in theory. This paper presents and discusses different expert viewpoints on the role of theory in lean research and practice and provides guidelines for future research.

Design/methodology/approach

Seven experienced lean authors independently provide their views to the question “is Lean a theory?” before Rachna Shah summarizes the viewpoints and provides a holistic outlook for lean research.

Findings

Authors agree, disagree and sometimes agree to disagree. However, a close look reveals agreement on several key points. The paper concludes that Lean is not a theory but has plenty of theoretical underpinnings. Many lean-related theories provide promising opportunities for future research.

Originality/value

As researchers, we are asked to justify our research drawing on “theory,” but what does that mean for a practice-driven phenomenon such as lean? This paper provides answers and directions for future research.

Details

International Journal of Operations & Production Management, vol. 41 no. 12
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 1 December 2007

Peter Scourfield

This paper comments on emerging themes derived from recent official publications on older people's advocacy in the UK. There is an examination of relevant policy documents and the…

Abstract

This paper comments on emerging themes derived from recent official publications on older people's advocacy in the UK. There is an examination of relevant policy documents and the responses from service user groups. Discussion includes: clarity in defining advocacy; the nature of the advocacy relationship; sustained and reliable financing of advocacy services; the uneven nature of provision; lack of inter‐agency connectivity; the need to establish national standards for advocacy; problems of mental capacity; and advocacy for care home residents and for minority groups. The need for and direction of further research is proposed.

Details

Quality in Ageing and Older Adults, vol. 8 no. 4
Type: Research Article
ISSN: 1471-7794

Keywords

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