Andrea P. Assanelli, Rita G. Toscano, Daniel H. Johnson and Eduardo N. Dvorkin
The production of steel pipes with guaranteed external collapse pressure (e.g. high collapse casings for oil wells) requires the implementation of an accurate process control. To…
Abstract
The production of steel pipes with guaranteed external collapse pressure (e.g. high collapse casings for oil wells) requires the implementation of an accurate process control. To develop that process control it is necessary to investigate how different parameters affect the external collapse pressure of the pipes. Experimental/numerical techniques implemented to investigate the collapse behavior of steel pipes are presented. The discussion of the experimental techniques includes the description of the facilities for performing external pressure collapse tests and the description of an imperfections measuring system. The numerical techniques include 2D and 3D finite element models. The effects on the value of the pipes’ external collapse pressure of their shape, residual stresses and material properties are discussed.
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Rita G. Toscano and Eduardo N. Dvorkin
This paper aims to develop a simple and efficient shell element for large strains hyper‐elastic analyses.
Abstract
Purpose
This paper aims to develop a simple and efficient shell element for large strains hyper‐elastic analyses.
Design/methodology/approach
Based on the classical MITC4 shell element formulation a 3D shell element with finite strain kinematics is developed. The new quadrilateral shell element has five dof per node and two global dof to model the thickness stretching. The shell element is implemented for hyperelastic material models and the application of different hyperelastic constitutive relations is discussed.
Findings
The results obtained considering three of the hyperelastic material models available in the literature are quite different when the developed strains are relatively high; this indicates that, for analyzing actual engineering examples, experimental data should be used to decide on the most suitable constitutive relation.
Originality/value
The 3D version of the MITC4 element was developed.
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Jurgita Lazauskaite-Zabielske, Ieva Urbanaviciute, Arunas Ziedelis and Rita Jakstiene
This study aimed to test the relationship between various communication channels (in person, on screen, on the phone, messaging), the team feeling and perceived support by…
Abstract
Purpose
This study aimed to test the relationship between various communication channels (in person, on screen, on the phone, messaging), the team feeling and perceived support by colleagues under different intensities of telework.
Design/methodology/approach
European Social Survey (ESS) Round 10 (2020–22) data file edition 3.0 was used for data analysis. The sample of this study consisted of 9,500 workers from ISCO groups 1–4 from 19 European Union countries. Latent profile analysis was used to analyse the data.
Findings
Five communication and telework intensity profiles were revealed: solo office workers, connected teleworkers, solo teleworkers, all-mode office communicators and office classics. Demographic and professional characteristics predicted employees’ membership in specific telework and communication channel profiles. The significant between-profile differences regarding one’s team feelings and perceived support from colleagues were observed. The highest levels of team feeling and expectations of getting work-related help from colleagues were observed among office classics, characterised by all types of communication except on-screen communication. On the contrary, solo teleworkers who worked from home and rarely used all multi-mode communication channels to contact their colleagues reported the lowest levels of team feeling and social support.
Originality/value
Using representative data from 19 European countries (N = 9,500), this study provides insight into how combinations of telework intensity and communication forms relate to different levels of team feeling and perceived support among colleagues. It highlights the importance of using diverse communication for maintaining social support and team cohesion.
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Julisa McCoy, Jessica Moronez, Evelyn Pruneda and Ellen Reese
Communities are critical sites for studying the politics of inequality within neoliberal capitalism. We illustrate this by providing regional case studies of the enactments and…
Abstract
Communities are critical sites for studying the politics of inequality within neoliberal capitalism. We illustrate this by providing regional case studies of the enactments and outcomes of three types of neoliberal policies in the United States: (1) cutbacks in family planning policies, (2) municipal underbounding and failures to provide public infrastructure within unincorporated communities, and (3) “tough on crime” policies leading to mass incarceration. Building on insights from intersectional feminist theory and using evidence from in-depth interviews from three Southwestern communities, we argue that neoliberal capitalism is compounding intersecting inequalities affecting women of color. In particular, we claim that neoliberal policies at the local and state levels are compromising the reproductive autonomy and public health of women of color and creating new challenges for their family care work.