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Article
Publication date: 21 February 2024

Mohan Kumar K and Arumaikkannu G

The purpose of this paper is to compare the influence of relative density (RD) and strain rates on failure mechanism and specific energy absorption (SEA) of polyamide lattices…

Abstract

Purpose

The purpose of this paper is to compare the influence of relative density (RD) and strain rates on failure mechanism and specific energy absorption (SEA) of polyamide lattices ranging from bending to stretch-dominated structures using selective laser sintering (SLS).

Design/methodology/approach

Three bending and two stretch-dominated unit cells were selected based on the Maxwell stability criterion. Lattices were designed with three RD and fabricated by SLS technique using PA12 material. Quasi-static compression tests with three strain rates were carried out using Taguchi's L9 experiments. The lattice compressive behaviour was verified with the Gibson–Ashby analytical model.

Findings

It has been observed that RD and strain rates played a vital role in lattice compressive properties by controlling failure mechanisms, resulting in distinct post-yielding responses as fluctuating and stable hardening in the plateau region. Analysis of variance (ANOVA) displayed the significant impact of RD and emphasised dissimilar influences of strain rate that vary to cell topology. Bending-dominated lattices showed better compressive properties than stretch-dominated lattices. The interesting observation is that stretch-dominated lattices with over-stiff topology exhibited less compressive properties contrary to the Maxwell stability criterion, whereas strain rate has less influence on the SEA of face-centered and body-centered cubic unit cells with vertical and horizontal struts (FBCCXYZ).

Practical implications

This comparative study is expected to provide new prospects for designing end-user parts that undergo various impact conditions like automotive bumpers and evolving techniques like hybrid and functionally graded lattices.

Originality/value

To the best of the authors' knowledge, this is the first work that relates the strain rate with compressive properties and also highlights the lattice behaviour transformation from ductile to brittle while the increase of RD and strain rate analytically using the Gibson–Ashby analytical model.

Details

Rapid Prototyping Journal, vol. 30 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 8 June 2010

Aapo Länsiluoto and Marko Järvenpää

The purpose of this paper is to investigate how different actors influenced the implementation of an environmental management system (EMS) and a performance measurement system…

1148

Abstract

Purpose

The purpose of this paper is to investigate how different actors influenced the implementation of an environmental management system (EMS) and a performance measurement system (PMS) in a case company when the systems are eventually integrated. Another purpose is to illustrate how the frameworks of Gibson and Earley and Lovaglia et al. can be utilized to investigate the implementation of different management systems in practice.

Design/methodology/approach

This paper is an interpretative case study, which utilizes qualitative methods such as semi‐structured interviews and internal documents.

Findings

The results indicate the importance of maintaining a separation between the power and status of an actor in EMS and PMS implementation processes, and the ways in which the power and status of actors in the EMS and PMS implementation differed. The status and role of an actor can change although the power may be static during the implementation of different management systems. Therefore, the paper confirms the classification of Lovaglia et al. and proposes that their classification should be added to the framework of Gibson and Earley.

Originality/value

Earlier accounting studies using the institutional theory framework of Burns and Scapens did not specifically investigate the role of actors, or their power and status in implementing two different management systems. The collective action frameworks of Gibson and Earley and Lovaglia et al. have not been practically utilized before in EMS and PMS studies. Furthermore, EMS and PMS integration studies have usually been normative without empirical case data.

Details

Journal of Accounting & Organizational Change, vol. 6 no. 2
Type: Research Article
ISSN: 1832-5912

Keywords

Article
Publication date: 1 April 1989

H.R. Thomas and K. Bendani

A solution algorithm which enables various rheological models of combined one‐dimensional consolidation and creep to be accommodated in a unified approach, is used to solve three…

Abstract

A solution algorithm which enables various rheological models of combined one‐dimensional consolidation and creep to be accommodated in a unified approach, is used to solve three models which have appeared in the literature. The theories are those of Tan, Gibson and Lo, and Schiffman, Ladd and Chen. Comparisons between these hereditary rheological models are performed and assessments of the various features of the models presented.

Details

Engineering Computations, vol. 6 no. 4
Type: Research Article
ISSN: 0264-4401

Article
Publication date: 1 March 2013

Ed Gibson

Research on performance management, as it applies to public sector organizations, has been addressed most often from a static perspective. A process-oriented view on performance…

Abstract

Research on performance management, as it applies to public sector organizations, has been addressed most often from a static perspective. A process-oriented view on performance is undertaken through use of perceived obstacles, garnered through two large surveys of U.S. government managers, to infer the adaptive paths federal agencies have followed. By applying a learning-based model founded on March’s framework of exploration and exploitation, the ideal-typical ways that public organizations adapt to a performance initiative can be distinguished, opening a window into the processes such learning entails. Structural equation modeling provides the statistical capacity to interpret exploration and exploitation as cohesive paths. Exploratory adaptation appears to have been largely counterproductive, as the obstacles associated with this dynamic indicated a roadblock rather than a path forward. But exploitation had the opposite effect, as its associated obstacles corresponded with greater use of performance measures for management activities and enhanced results orientation.

Details

International Journal of Organization Theory & Behavior, vol. 16 no. 3
Type: Research Article
ISSN: 1093-4537

Article
Publication date: 12 September 2016

Kelly Dombroski

The purpose of this paper is to use a case study of an online parenting forum to theorise how mothers’ everyday environmental and caring labour is a form of environmental and…

Abstract

Purpose

The purpose of this paper is to use a case study of an online parenting forum to theorise how mothers’ everyday environmental and caring labour is a form of environmental and social activism in the home, that while not organised as such, is still collectivised in a “hybrid activist collective”.

Design/methodology/approach

Using ethnographic data and content analysis from an online parenting forum for the nappy-free infant hygiene practice known as “elimination communication”, the author compares the matters of key concern arising for this group of mothers with economic activist concerns as identified by Gibson-Graham et al. (2013) in their community economies work.

Findings

The paper finds a high degree of resonance between the key concerns of the elimination communication forum members with the key concerns of community economies. Furthermore, the author identifies the components of what might comprise a “hybrid activist collective” of mothers and others undertaking direct action for environmental and social change.

Social implications

Mothers and others acting for social and environmental change through domestic practices should be recognised for their important environmental and caring labour.

Originality/value

The paper proposes the “hybrid activist collective” as a way of understanding the human and non-human elements that gather together to act for environmental and social change in a collectivised, but not formally organised manner.

Details

International Journal of Sociology and Social Policy, vol. 36 no. 9/10
Type: Research Article
ISSN: 0144-333X

Keywords

Abstract

Details

Wellness Culture
Type: Book
ISBN: 978-1-80262-465-6

Article
Publication date: 2 September 2014

Susan Shortland

The purpose of this paper is to examine the extent to which – and how – female expatriate role models support women to take up expatriate assignments in the male-dominated oil and…

2065

Abstract

Purpose

The purpose of this paper is to examine the extent to which – and how – female expatriate role models support women to take up expatriate assignments in the male-dominated oil and gas industry.

Design/methodology/approach

The research uses data from a census survey of female expatriates supported by semi-structured interviews with a stratified sample of the survey respondents, triangulated with interviews with human resource (HR) professionals and analysis of organizational policy relevant to expatriation.

Findings

Potential assignees value the information that women role models can provide on living in challenging, masculine locations. Role models are particularly important to women undertaking unaccompanied assignments and also when assignment periods exceed traditional lengths. Current female expatriates do not view themselves as role models, despite HR professionals recognizing their value in inspiring women's expatriation.

Research limitations/implications

This research was set in a sector with very few female expatriate role models. Further research is needed to understand the influence of role models on women's expatriation in different sectors and organizations with greater female role model representation.

Practical implications

Training for current assignees, time to be set aside within work duties and communications links to enable current and returned female expatriates to connect with potential assignees are needed to widen expatriate gender diversity.

Originality/value

This research contributes to theory by linking the importance of role models to women's career stages. It proposes a new theoretical contribution by linking role model importance to the types of assignments women undertake. Practical suggestions for organizations are given to widen expatriate gender diversity via support for role models.

Book part
Publication date: 7 July 2015

Kathryn Moura, Ashlea C. Troth and Peter J. Jordan

Excessive anger at work has a negative impact on the worker expressing anger and on those around them. The aim of our study is to identify anger triggers, reactions, and…

Abstract

Excessive anger at work has a negative impact on the worker expressing anger and on those around them. The aim of our study is to identify anger triggers, reactions, and strategies for workers referred to an anger management intervention program. We interviewed 20 participants prior to the start of that program. Main causes of anger reported were unfair treatment, workplace incompetence, disregard by others, and concern for the bottom line. Anger reactions were aggressive acts and anger suppression. The two main strategies reported for dealing with anger were “no identifiable strategy” and distancing. Implications for theory and practice are discussed.

Details

New Ways of Studying Emotions in Organizations
Type: Book
ISBN: 978-1-78560-220-7

Keywords

Case study
Publication date: 20 January 2017

Mark E. Haskins, Kristy Lilly and Liz Smith

This case provides students with an opportunity to practice a set of activity-based costing calculations. More importantly, it provides an instructor with the opportunity to…

Abstract

This case provides students with an opportunity to practice a set of activity-based costing calculations. More importantly, it provides an instructor with the opportunity to challenge students to think about and to discuss the rationale used by the case protagonist to revise the means by which the company allocates corporate support costs to the product lines and to the business units. It is best used as an introduction to activity-based costing and/or the more general topic of cost allocations. As such, it is effective for undergraduate and graduate managerial accounting courses, as well as executive education financial management programs.

Details

Darden Business Publishing Cases, vol. 1 no. 1
Type: Case Study
ISSN: 2474-7890
Published by: University of Virginia Darden School Foundation

Keywords

Book part
Publication date: 1 September 2014

Frank Walter, Bernd Vogel and Jochen I. Menges

We offer a new perspective on group affective diversity by introducing the construct of mixed group mood, denoting co-occurring positive and negative mood states between different…

Abstract

We offer a new perspective on group affective diversity by introducing the construct of mixed group mood, denoting co-occurring positive and negative mood states between different members of a group. Mixed group mood is characterized by four facets, namely members’ distribution between two positive and negative subgroups, subgroups’ average mood intensity, subgroups’ mood intensity heterogeneity, and individual members’ mood ambivalence. Building on information/decision-making and social categorization/similarity–attraction perspectives, we explore the performance consequences of mixed group mood along these four facets and we discuss implications and directions for future research.

Details

Individual Sources, Dynamics, and Expressions of Emotion
Type: Book
ISBN: 978-1-78190-889-1

Keywords

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