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1 – 4 of 4Jeremy Doucet, Xiang Zhang and Philip Irving
This paper aims to present the implementation of a finite element (FE) model used to establish crack and delamination development in a Glare reinforced aluminium plate under…
Abstract
Purpose
This paper aims to present the implementation of a finite element (FE) model used to establish crack and delamination development in a Glare reinforced aluminium plate under fatigue loading. This model predicts the behaviour of bonded GLARE straps used as crack retarders for life extension of aircraft structures. In particular, it takes into account the interaction that exists between the substrate crack and the delamination crack at the interface with the reinforcement.
Design/methodology/approach
In this work, a 3D FE model with three-layer continuum shell elements has been developed to calculate changes in substrate stress intensity and in fatigue crack growth (FCG) rate produced by bonded strap reinforcement. Both circular and elliptical strap delamination geometries were incorporated into the model. Calculated stress intensity factors (SIFs) were used together with measured FCG data for substrate material to predict FCG rates for the strapped condition.
Findings
The model predicted a decrease in the SIF and a retardation of FCG rates. The SIF was predicted to vary through the thickness of the substrate due to the phenomenon of secondary bending and also the bridging effect caused by the presence of the strap. The influence of delamination shape and size on substrate crack stress intensity and delamination strain energy release rate has been calculated.
Originality/value
This research aims at developing modelling techniques that could be used when studying larger reinforced structures found in aircraft.
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Keywords
There is a growing body of literature signaling the relevance of race in leadership development, but many conventional models do not prompt exploration of this social identity…
Abstract
There is a growing body of literature signaling the relevance of race in leadership development, but many conventional models do not prompt exploration of this social identity. The omission of race in leadership curriculum is disadvantageous for all college students, but among White student leaders, it may be a continuance of White privilege. The purpose of this constructivist study was to explore how White student leaders make meaning of their racial identity, and corresponding privilege, through a relevant leadership framework. Racial caucusing was employed as a method to prompt discussion and gather narratives from four White student leaders. Findings from this narrative inquiry study indicate how the confluences of race and leadership can advance self-awareness among White student leaders.
Hannes Velt and Rudolf R. Sinkovics
This chapter offers a comprehensive review the literature on authentic leadership (AL). The authors employ a bibliometric approach to identify, classify, visualise and synthesise…
Abstract
This chapter offers a comprehensive review the literature on authentic leadership (AL). The authors employ a bibliometric approach to identify, classify, visualise and synthesise relevant scholarly publications and the work of a core group of interdisciplinary scholars who are key contributors to the research on AL. They review 264 journal articles, adopting a clustering technique to assess the central themes of AL scholarship. They identify five distinct thematic clusters: authenticity in the context of leadership; structure of AL; social perspectives on AL; dynamism of AL; and value perceptions of AL. Velt and Sinkovics assert that these clusters will help scholars of AL to understand the dominant streams in the literature and provide a foundation for future research.
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Xiaocan (Lucy) Wang, Natalie Bulick and Valentine Muyumba
The purpose of this paper is to describe the Electronic Theses and Dissertations program implemented and managed by the Indiana State University since 2009. The paper illustrates…
Abstract
Purpose
The purpose of this paper is to describe the Electronic Theses and Dissertations program implemented and managed by the Indiana State University since 2009. The paper illustrates issues relating to the background, policies, platform, workflow and cataloging, as well as the publication and preservation of graduate scholarship.
Design/methodology/approach
The authors examined many aspects of the Electronic Theses and Dissertations program and addressed issues dealt before, during and after the publication of the electronic theses and dissertations collection. The approaches the authors utilized are literature review and personal management experience from working on the program.
Findings
Implementing an Electronic Theses and Dissertations program involves providing a series of management services. These services include developing relevant policies, implementing an archiving and publication platform and creating submission and publishing workflows, as well as cataloging, disseminating and preserving the student collection. Openly publishing the collection through a range of access points significantly increases its visibility and accessibility. Adopting several archival and preservation strategies ensures the long-term readiness of the collection.
Originality/value
This paper will provide useful practices for implementing an ETD program to those institutions new to the ETD initiative process. It also contributes to the current body of literature and to the overall improvement of ETD programs globally.
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