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Article
Publication date: 11 November 2014

Utkarsh Ajay Shah

– The purpose of this paper is to compare different existing assessment procedures for their limitations and applicable areas.

Abstract

Purpose

The purpose of this paper is to compare different existing assessment procedures for their limitations and applicable areas.

Design/methodology/approach

Procedures have been studied in-depth along with their criterion for applications.

Findings

The study shows applicability of different procedures along with their limitations and future scope.

Originality/value

The paper provides starting point for performing damage assessment based on relevant procedures.

Details

International Journal of Structural Integrity, vol. 5 no. 4
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 24 May 2013

Virginia Madrazo, Sergio Cicero and Isidro Carrascal

The purpose of this paper is to present and validate a methodology for the structural integrity assessment of components containing a variety of stress risers and subjected to…

Abstract

Purpose

The purpose of this paper is to present and validate a methodology for the structural integrity assessment of components containing a variety of stress risers and subjected to static conditions.

Design/methodology/approach

The methodology is based on the use of the apparent fracture toughness prediction provided by the theory of critical distances (in this case, the line method), together with a well‐known, widely‐used engineering tool in structural integrity assessments: failure assessment diagrams. In order to validate the proposed methodology, an experimental programme has been conducted, testing 38 specimens made of aluminium alloy Al7075‐T651, each of them containing a certain stress riser. The comparison between the experimental results and the corresponding predictions provided by the proposed assessment methodology has also allowed the situations for which the theory of critical distances provides accurate predictions to be defined.

Findings

The results show that the methodology provides accurate results as long as the Neuber number, defined as the notch radius divided by the critical distance (L), is sufficiently low. In order to extend the validity to situations where the Neuber number is higher, it is necessary to calibrate L by using notched specimens with similar radii to those found in the defects being analysed.

Originality/value

The present study is part of Virginia Madrazo's doctoral thesis, an original research work.

Details

International Journal of Structural Integrity, vol. 4 no. 2
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 13 October 2021

Ilya Ryakhovskikh, Roman Kashkovskiy, Aleksandr Kaverin, Vladimir Stolov and Sergey Zhedulov

The paper is devoted to the phenomenon of stress corrosion cracking (SCC), which is an urgent problem for major operator companies that use large-diameter gas transport systems…

Abstract

Purpose

The paper is devoted to the phenomenon of stress corrosion cracking (SCC), which is an urgent problem for major operator companies that use large-diameter gas transport systems built in the second half of the last century. The aim of the study is to predict the operability of gas pipelines with SCC and ensure their safe operation.

Design/methodology/approach

The methodology of the article mainly consisted of strength calculations, mathematical and analytical approaches.

Findings

The paper describes practical methods of assessing the residual service life and operability of pipes with SCC defects as part of gas pipelines, the developed approaches to assessing the point of failure of pipes, provides recommendations for developing requirements to ILI smart tools in order to detect cracks and the methods of pipe repair depending on the SCC defect parameters.

Originality/value

The originality of the study consists in the analytical description of the point of destruction of gas pipelines with SCC, assessment of their performance, as well as the definition of modern requirements for the accuracy of in-line inspection to ensure the detection of potentially dangerous SCC defects.

Details

International Journal of Structural Integrity, vol. 12 no. 6
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 1 November 2006

George K. Stylios

Examines the twelfth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects…

1099

Abstract

Examines the twelfth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

Details

International Journal of Clothing Science and Technology, vol. 18 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 9 September 2021

Yue Yuan, Kuanhai Deng, Jiangjiang Zhang, Wenguang Zeng, Xiangwei Kong and Yuanhua Lin

This study aims to provide a theoretical basis to evaluate the suitability and integrity of corrosion pipes.

178

Abstract

Purpose

This study aims to provide a theoretical basis to evaluate the suitability and integrity of corrosion pipes.

Design/methodology/approach

The three-dimensional models of the P110S oil pipe with local corrosion damage, general corrosion damage, pitting corrosion damage are established based on the API 579 standard using the nonlinear finite element analysis method for parametric research.

Findings

The reliability of the model is verified based on the experimental data from the existing literature. The effects of the oil pipe’s size and the corrosion damage’s type on the residual internal pressure strength are simulated and obtained. What’s more, a basic method for predicting the remaining life of corrosion damaged pipes is proposed.

Originality/value

The authors evaluated the residual strength of various corroded tubing, compared the tubing with different corrosion types and proposed a basic method for predicting the remaining life of the corroded tubing from the corrosion depth.

Article
Publication date: 1 April 2006

M. Rogante, V.T. Lebedev, S. Kralj, L. Rosta and Törö

This paper addresses important technical problems related with methodological limitations of welding project methods currently adopted, mostly regarding numerical modelling…

Abstract

This paper addresses important technical problems related with methodological limitations of welding project methods currently adopted, mostly regarding numerical modelling procedure of welding processes. The progress in high nano‐technologies give rise to the same approaches to be applied in traditional mechanics and material science, really concerning welding processes using various methods and techniques. Recent investigations of welded joints have shown the benefits related to the employment of neutron techniques, to obtain substantial information advancing quality and durability that cannot be found by using other means. Small Angle Neutron Scattering (SANS) and Neutron Diffraction (ND), in particular, consent materials characterization at atomic and nanoscale level, offering to the existing technologies the essential contribution of precise structural methods. The basic theoretical aspects are described, and some SANS investigations of weldments are reported. An experimental programme has been recently projected to develop welding processes, with quality assurance improvement, safety enhancement, life‐time management and cost effectiveness of the considered joints.

Details

Multidiscipline Modeling in Materials and Structures, vol. 2 no. 4
Type: Research Article
ISSN: 1573-6105

Keywords

Open Access
Article
Publication date: 4 April 2024

Weihua Zhang, Yuanchen Zeng, Dongli Song and Zhiwei Wang

The safety and reliability of high-speed trains rely on the structural integrity of their components and the dynamic performance of the entire vehicle system. This paper aims to…

Abstract

Purpose

The safety and reliability of high-speed trains rely on the structural integrity of their components and the dynamic performance of the entire vehicle system. This paper aims to define and substantiate the assessment of the structural integrity and dynamical integrity of high-speed trains in both theory and practice. The key principles and approaches will be proposed, and their applications to high-speed trains in China will be presented.

Design/methodology/approach

First, the structural integrity and dynamical integrity of high-speed trains are defined, and their relationship is introduced. Then, the principles for assessing the structural integrity of structural and dynamical components are presented and practical examples of gearboxes and dampers are provided. Finally, the principles and approaches for assessing the dynamical integrity of high-speed trains are presented and a novel operational assessment method is further presented.

Findings

Vehicle system dynamics is the core of the proposed framework that provides the loads and vibrations on train components and the dynamic performance of the entire vehicle system. For assessing the structural integrity of structural components, an open-loop analysis considering both normal and abnormal vehicle conditions is needed. For assessing the structural integrity of dynamical components, a closed-loop analysis involving the influence of wear and degradation on vehicle system dynamics is needed. The analysis of vehicle system dynamics should follow the principles of complete objects, conditions and indices. Numerical, experimental and operational approaches should be combined to achieve effective assessments.

Originality/value

The practical applications demonstrate that assessing the structural integrity and dynamical integrity of high-speed trains can support better control of critical defects, better lifespan management of train components and better maintenance decision-making for high-speed trains.

Details

Railway Sciences, vol. 3 no. 2
Type: Research Article
ISSN: 2755-0907

Keywords

Article
Publication date: 1 December 2005

George K. Stylios

Examines the eleventh published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects…

1024

Abstract

Examines the eleventh published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

Details

International Journal of Clothing Science and Technology, vol. 17 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 16 January 2023

Anshu Sharma, Jyotsna Bhatnagar, Mahadeo Jaiswal and Mohan Thite

With the increasing prevalence of social media in everyday life, scholars have argued the need of exploring enterprise social media (ESM) for workplace outcomes. This study…

Abstract

Purpose

With the increasing prevalence of social media in everyday life, scholars have argued the need of exploring enterprise social media (ESM) for workplace outcomes. This study investigates the relationship between ESM use and organizational learning capability (OLC) by focusing on the mediating role of informal learning (INFL) and the moderating role of social capital (SC).

Design/methodology/approach

The paper developed and tested a mediated moderated model explaining the impact of ESM on OLC. The study used temporally separated data of 281 respondents collected in two waves from firms in India that use organizationally facilitated ESM platforms for internal workplace communication.

Findings

An analysis of temporally separated two-wave data indicates that INFL mediates the relationship between ESM use and OLC. Also, SC is found to moderate the effect of ESM use on INFL, and INFL mediated the moderation effect of SC on relationship between ESM use and OLC such that the relationship will be stronger when employees have a higher rather than lower level of SC.

Research limitations/implications

The study theoretically contributes and extends the literature on ESM and learning in organizations. The study provides important practical implications to support and institutionalize learning at work. The results of the study provide evidence that ESM are not just networking tools but a platform for learning. Findings of the study suggest that ESM can be one such tool to promote and capture employee INFL. The results also show that SC plays a critical role in predicting the extent to which employees learn informally using ESM, thereby building OLC. This result suggests that organizations should make conscious and concerted efforts to build employee SC. The above findings also have interesting implications for learning and development (L&D) and information technology (IT) managers who wish to implement technology for collaborative purposes.

Originality/value

Addressing the underlying processes that explain how ESM positively influence OLC was highlighted as a critical research gap that needs attention. The paper is novel in its approach as it provides empirical evidence for the relationship between ESM and its impact on employee outcomes, an area pertinent in today's digital economy, however, received sparse attention by management scholars so far. It also provides empirical grounds toward a meaningful shift in the social media discourse – transition from being traditionally viewed primarily as “a networking platform” to “a learning platform.”

Details

Journal of Enterprise Information Management, vol. 36 no. 2
Type: Research Article
ISSN: 1741-0398

Keywords

Article
Publication date: 14 February 2023

Prabhjot Kaur, Anupama Prashar and Jyotsna Bhatnagar

Lens of conservation of resources (COR) theory has been used to study how organizations can create resource passageways for their employees via managers. This has been examined in…

Abstract

Purpose

Lens of conservation of resources (COR) theory has been used to study how organizations can create resource passageways for their employees via managers. This has been examined in cross-cultural virtual work teams distributed across time and space within the high-resource loss context of the COVID-19 pandemic.

Design/methodology/approach

Longitudinal field design was used in a transnational organization involving data collection at three times over eight months. At Time 1, qualitative methodology was used to propose a conceptual model. At Time 2 and Time 3, an online survey was used to collect data for 205 virtual work teams across 10 countries in the Asia–Pacific region pre and post “manager as coach” training respectively.

Findings

Using COR theory, the study highlights that “manager as coach” training is an effective resource for managers in the high resource depletion context of the pandemic. Access to timely support increases saliency for the resource-gain spiral and has a cross-over impact on virtual work team outcomes suggesting transferability of resources from managers to subordinates. Also, managers across all nationalities view coaching training as an equally valuable resource.

Practical implications

The study provides evidence for investment in timely and relevant support for managers to positively and swiftly impact virtual work teams during high-resource loss contexts.

Originality/value

The study expands COR crossover theory across space and time dimensions using a longitudinal field research design.

Details

Personnel Review, vol. 53 no. 2
Type: Research Article
ISSN: 0048-3486

Keywords

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