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Contact problems are among the most difficult ones in mechanics. Due to its practical importance, the problem has been receiving extensive research work over the years. The finite element method has been widely used to solve contact problems with various grades of complexity. Great progress has been made on both theoretical studies and engineering applications. This paper reviews some of the main developments in contact theories and finite element solution techniques for static contact problems. Classical and variational formulations of the problem are first given and then finite element solution techniques are reviewed. Available constraint methods, friction laws and contact searching algorithms are also briefly described. At the end of the paper, a bibliography is included, listing about seven hundred papers which are related to static contact problems and have been published in various journals and conference proceedings from 1976.

Most studies of power‐law fluids are carried out using stress‐based system of Navier‐Stokes equations; and least‐squares finite element models for vorticity‐based equations of power‐law fluids have not been explored yet. Also, there has been no study of the weak‐form Galerkin formulation using the reduced integration penalty method (RIP) for power‐law fluids. Based on these observations, the purpose of this paper is to fulfill the two‐fold objective of formulating the least‐squares finite element model for power‐law fluids, and the weak‐form RIP Galerkin model of power‐law fluids, and compare it with the least‐squares finite element model.

For least‐squares finite element model, the original governing partial differential equations are transformed into an equivalent first‐order system by introducing additional independent variables, and then formulating the least‐squares model based on the lower‐order system. For RIP Galerkin model, the penalty function method is used to reformulate the original problem as a variational problem subjected to a constraint that is satisfied in a least‐squares (i.e. approximate) sense. The advantage of the constrained problem is that the pressure variable does not appear in the formulation.

The non‐Newtonian fluids require higher‐order polynomial approximation functions and higher‐order Gaussian quadrature compared to Newtonian fluids. There is some tangible effect of linearization before and after minimization on the accuracy of the solution, which is more pronounced for lower power‐law indices compared to higher power‐law indices. The case of linearization before minimization converges at a faster rate compared to the case of linearization after minimization. There is slight locking that causes the matrices to be ill‐conditioned especially for lower values of power‐law indices. Also, the results obtained with RIP penalty model are equally good at higher values of penalty parameters.

Vorticity‐based least‐squares finite element models are developed for power‐law fluids and effects of linearizations are explored. Also, the weak‐form RIP Galerkin model is developed.

A new laminated composite plate finite element is proposed that is numerically stable and accurate in displacements and stresses, including transverse shear stress. The formulation is based on the Hellinger—Reissner principle with Mindlin kinematics. All stress components are given independent approximations and do not satisfy equilibrium conditions a priori. A novel feature of the formulation is the additive decomposition of the displacement field into two parts corresponding to nodal interpolations and independent local basis functions. The additional basis functions and their associated parameters play an important role in characterizing the accuracy of the element. These functions eliminate shear locking in the lower order elements and provide additional variational constraints on the stresses, leading to very accurate results. A 4‐node and a 9‐node version are developed and it is shown that both elements pass the patch test suggested by Zienkiewicz et al. and are stable in the sense of the Babuška—Brezzi condition. The special structure of the element flexibility matrix provides computational efficiency approaching that of displacement based formulations.

The aim of this paper is to analyze the influence of intangible assets and similarity of resources on the choice between acquisitions and joint ventures and whether it is different in domestic and European operations. In order to test these relations, a sample of domestic and European growth deals was selected (563 deals, of which 449 are acquisitions and 114 are joint ventures). Results demonstrate that it is more probable that firms will choose acquisitions if there is a close similarity between the resources of the firms. Also, if the operation is domestic, companies with higher proportions of intangible resources prefer acquisitions.

This conceptual chapter aims to understand the role of artificial intelligence (AI) in value co-creation phenomena in a healthcare service ecosystem, through a literature review and the definition of a conceptual framework. AI, as an operant resource, can stimulate a completely patient-centered, adaptive and resilient healthcare system, and governance models in healthcare based on data-driven decision-making (DDDM), ensuring faster choices, more timely diagnosis and more personalized treatment paths. However, the full implementation of AI in healthcare is inhibited by some frictions, mainly related to the risk that the AI black box may generate an inadequate automatic decision, also due to the quality of data used, often partial and unstructured given the reluctance to share them by patients concerned by privacy threats. The co-design (multi-part and multi-level) of a predictive decision model based on the functional transparency of the AI algorithm would allow for augmented decision as result of an effective human–machine interaction. Healthcare actors could thus make decisions using the information detected by the software (based on clear cause-and-effect correlations and modifiable variables in case of mistakes), integrated with their professional knowledge. This would also help to strengthen the patient’s perception of the decision’s reliability and accuracy and the safety of the tool (factors that can affect his/her trust). AI may be considered as a driver for value co-creation in healthcare, thanks to transparency. It would allow the promotion of collaborative behaviors involving actors by generating new institutions and new resource integration practices among them.

In this chapter, we aim to shed more light on the role of formal institutional distance in firms’ foreign entry mode choices by accounting for the direction of that distance. Specifically, we distinguish between foreign entries where the host country is institutionally less developed than the investing firm’s home country (negative institutional distance) and those where the host country’s institutions are comparatively more developed (positive institutional distance), and explore whether these different types of entries are implemented through different equity-based modes. We take an information economics perspective to develop hypotheses on the effects of positive and negative formal institutional distance on firms’ choices between greenfields and acquisitions, and between full and partial ownership of greenfield and acquired subsidiaries. We test our hypotheses on a sample of 1,070 foreign entries made by 796 emerging market multinationals originating from 14 countries. Controlling for the host country’s formal institutional quality and other factors, we find that negative institutional distance increases the likelihood that a foreign entry takes the form of a greenfield investment rather than an acquisition and that positive institutional distance decreases that likelihood. We also find that negative institutional distance increases the chances that firms choose greenfield joint ventures over wholly owned greenfields and full over partial acquisitions. Finally, we find that positive institutional distance does not affect firms’ ownership stake choices, neither for greenfields nor for acquisitions. Overall, these findings argue for a nuanced, contingency view of the role of formal institutional distance in foreign entry mode choices. To the best of our knowledge, this study is the first to use information economics to construct a holistic picture of firms’ equity-based entry mode choices, taking into account both establishment and ownership modes.

The logic of consequences and the logic of appropriateness have long been central to understanding behavior in organizations. However, scholarly work on the logic of appropriateness has consisted mostly of conceptual clarification and ex post explanation of observed behavior. In an effort to facilitate the study of the logic of appropriateness through experimental methods, this paper introduces an experimental paradigm that allows for the manipulation of decision logic as an independent variable. Using this paradigm, 710 participants played four iconic behavioral games in which profitability and ethics are both at play and, sometimes, at odds: Prisoners’ Dilemma, Dictator Game, Ultimatum Game, and Trust Game. The manipulation generated behavioral data, as well as qualitative data about participants’ considerations while deciding according to each logic. The behavioral data show that, compared to participants employing a logic of consequences, participants employing a logic of appropriateness rejected more unfair offers in an Ultimatum Game and were more generous when reciprocating trusting behavior in a Trust Game. In all other cases, behavior between the two logics was not significantly different. An analysis of the qualitative data suggests that a logic of consequences increased participants’ focus on monetary concerns, whereas a logic of appropriateness increased participants’ focus on moral concerns. Taken together, these data provide new insights into when, how, and why the two logics result in behavioral and cognitive differences. The authors conclude by considering directions for future research that they see as particularly amenable to study using the experimental manipulation presented here.

The present paper concerns the domestic and international accreditations of business schools to find the commonalities in various accreditation standards. The study also addresses cost involvement and comparisons between various accreditations.

The research examined the requirements, methods and preparations for many national and international accrediting authorities. The accreditation criteria, history and guidelines were collected from secondary data sources. The content analysis was used to draw conclusions about the similarities and differences between the data sources and identify any differences and similarities between various accreditations.

The study found commonalities across accreditation standards and cost analyses, helping institutions achieve suitable accreditations. To unify the administrative procedure at the institutional level and reduce duplicates for schools seeking multiple accreditations, similarities in all accreditation requirements are analysed. The comparison helps organisations determine which accreditation standard best suits their needs and goals. Schools with limited budgets might compare accreditation costs to determine which are worth pursuing.

This study is limited to comparing a few accreditation bodies related to management education. In future research, the study may be extended to other areas. The use of the approach developed in this study for evaluating accreditation agencies of different streams, such as engineering, science and medicine, will be the study's future implications.

The research indicates that schools can streamline accreditation by identifying commonalities, aligning procedures, comparing standards and conducting cost assessments. These insights aid efficient accreditation and inform accrediting bodies' framework enhancements. Standards facilitate global performance comparisons.

This is likely the first study to compare Indian and international accreditations using the accreditation frameworks and cost analyses using comparative analysis. The study recommends strategies for achieving academic benchmarks through continuous improvement activities and success in international competition.

A C° continuous finite element higher‐order displacement model is developed for the dynamic analysis of laminated composite plates. The displacement model accounts for non‐linear distribution of inplane displacement components through the plate thickness and the theory requires no shear correction coefficients. Explicit time marching schemes are adopted for integration of the dynamic equilibrium equation and a diagonal ‘lumped’ mass matrix is employed with a special procedure applicable to Lagrangian parabolic isoparametric elements. The parametric effects of the time step, finite element mesh, lamination scheme and orthotropy on the transient response are investigated. The effect of the coupling on the transient response is also investigated. Numerical results for deflections and stresses are presented for rectangular plates under various boundary conditions and loadings and compared with results from other sources.

This paper attempts to evaluate the transverse stresses that are generated within the interface between two layers of laminated composite and sandwich laminates by using Cℴ finite element formulation of higher‐order theories. These theories do not require the use of a fictitious shear correction coefficient which is usually associated with the first‐order Reissner‐Mindlin theory. The in‐plane stresses are evaluated by using constitutive relations. The transverse stresses are evaluated through the use of equilibrium equations. The integration of the equilibrium equations is attempted through forward and central direct finite difference techniques and a new approach, named as, an exact surface fitting method. Sixteen and nine‐noded quadrilateral Lagrangian elements are used. The numerical results obtained by the present approaches in general and the exact surface fitting method in particular, show excellent agreement with available elasticity solutions. New results for symmetric sandwich laminates are also presented for future comparisons.