How to improve Sonae's processes of suppliers of services' management?

Sonae is one of the greatest retailers in Portugal. As the business got bigger, it centralized operations. Direcção de Serviços Administrativos processes all invoices sent by suppliers. However, there are many which deliver errors and are not processed automatically. As a result, there are lost invoices and suppliers who are not paid, while the company’s accountability becomes less transparent. Such is due to a lack of proactive attitude towards suppliers as well as to a lack of incentives for employees to perform well. Great savings may be achieved with little effort, if the right things are measured so that the right tools may be applied.NSBE - UN

Numerical evaluation of pin-bearing strength for the design of bolted connections of pultruded FRP material

This paper presents finite-element predictions for the strength of a pultruded fiber-reinforced polymer (FRP) material subjected to pin-bearing loading with hole clearance. One of the distinct modes of failure in steel bolted connections is bearing. It is caused by the compression action from the shaft pressing into the laminate, and when there is no lateral restraint the mechanism observed at maximum load shows brooming for delamination failure. Each lamina in the glass fiber polyester matrix material is modeled as a homogeneous, anisotropic continuum and a relatively very thin resin layer is assumed to contain any delamination cracking between stacked layers. A cohesive zone model is implemented to predict the size and location of the initial delamination, as well as the load-carrying capacity in a pin-bearing specimen. Finite-element simulations (as virtual tests) are performed at the mesoscale level to validate the modeling methodology against experimental strength test results with delamination failure, and to show how pin-bearing strength varies with parameter changes. For an example of the knowledge to be gained for the design of bolted connections, the parameteric study in which the mat reinforcement is either continuous strand or triaxial (+45°/90°/−45°/chopped+45°/90°/−45°/chopped strand) shows the latter does not provide an increase in pin-bearing strength

Finite element guidelines for simulation of fibre-tension dominated failures in composite materials validated by case studies

This paper presents a finite element modelling methodology to predict the initiation and damage progression in notched composite laminated plates subjected to increasing in-plane tension load. An important feature of the methodology is it does not rely on customized user-subroutines but solely on the analysis capabilities of the general purpose software Abaqus; thus ensuring that the numerical results can be universally reproduced. The methodology presented copes with intralaminar failure modes and uses the Hashin failure criterion to predict the onset of failure (cracking). To account for damage progression after crack initiation there is a fracture energy calculated for each of four failure modes. Four open-hole laminated plates taken from the literature are used for benchmark examples. The predicted ultimate strength based on the analytically-obtained stress-displacement curve was found to be within 10% of the experimental observations. To study the influence of the interaction of having two or three holes across the mid-plane of a pultruded open-hole tension specimen, a parametric study was carried out. The paper ends giving guidelines for the generalized modelling methodology using Abaqus without user-subroutines

Bolted connections of pultruded GFRP : implications of geometric characteristics on net section failure

The results of a three-dimensional finite element study of the net section dominated failure behaviour of pultruded open-hole specimens are presented. Computer models are developed using the general-purpose software Abaqus. Several issues are addressed in the study with respect to the notched plate geometry: (i) thickness of plate, (ii) transverse centre-to-centre spacing of holes (gauge), and (iii) distance from the centre of the hole to the nearest edge. The analytical results provide information on basic performance and the effects of these parameters on strength and damage tolerance performance, thereby furthering the current understanding of pultruded plate-to-plate connection behaviour under static loading. Based on the results, design recommendations for minimum edge distance and gauge spacing for bolts are given

Virtual characterization of delamination failures in pultruded GFRP angles

This paper deals with the application of cohesive zone models to study delamination failures in leg-angles of pultruded glass fibre reinforced polymer material using the general-purpose finite element software Abaqus. The objective of the study is present a finite element modelling methodology that can, for example, help to fill-in knowledge gaps in the available experimental data pertaining to the tying force resistance of angle-cleated jointing in frame construction. It may be used to optimize cleat shape and laminate lay-up (dependent on composite processing method) for the strongest cleat against a minimum cost requirement. A benchmark example taken from literature is used to show that the numerical predictions from the authors’ simulations are reliable. The approach is next used to analyse an equal leg-angle component where one leg is fixed and the other orthogonal leg is being deformed by a tensile force applied over the free end surface. Numerical results from Abaqus are used to show that a lamination produced by the pultrusion processing method fails unstably by delamination cracks radiating around the curved region and extending into the leg panels. As a preliminary study to show the potential of the new modelling methodology it is used to show the influence of the radius of curvature at the junction between the legs on the tying force resistance; based on the load at delamination onset a smaller radius reduces the cleat’s strength

Ação do enfermeiro perante a ideação suicida no adolescente e jovem adulto

Introduction: Suicidal ideation, suicide and self-injurious behaviors constitute an unavoidable public health problem, with suicide being one of the main causes of death in adolescence. These are very complex phenomena, which do not result from just one cause, but from multiple interactions between biological, psychological, social, and even cultural factors. Objective: To systematize knowledge about the nurse's action in the face of suicidal ideation in adolescents and young adults. Method: This is an integrative literature review, carried out from November 25th, 2021, to January 26th, 2022, in the following databases: VHL (Virtual Health Library), Google Academic and Scielo (Scientific Electronic Library Online), with the following descriptors: “suicidal ideation”, “young adult”, “nurse’s action”, combined with the Boolean operator “AND”. Results: Six articles were selected, the most evident of which refers to risk and protective factors and that the nurse's action, despite being verbalized as necessary in the prevention of suicidal ideation and behaviors, is still not fully demonstrated. Conclusion: The selected articles revealed flaws in the work performed by nurses in caring for adolescents with suicidal ideation. The lack of knowledge and lack of training on the part of nurses, as well as the taboos and consequent prejudices are also evident. Thus, nursing must be qualified to provide ethical and effective care, physically establishing the patient as it provides psychological support, prioritizing qualified listening and carefree from prejudice or value judgments.Introdução: A ideação suicida, suicídio e comportamentos autolesivos constituem um incontornável problema de saúde pública, sendo o suicídio uma das principais causas de morte na adolescência. Estes são fenómenos muito complexos, que não resultam apenas de uma só causa, mas sim, de múltiplas interações entre fatores, biológicos, psicológicos, sociais e até mesmo culturais. Objetivo: Sistematizar o conhecimento sobre a ação do enfermeiro perante a ideação suicida no adolescente e jovem adulto. Método: Trata-se de uma revisão integrativa da literatura, realizada no período de 25 de novembro de 2021 a 26 de janeiro de 2022, nas bases de dados: BVS (Biblioteca Virtual de Saúde), Google Académico e Scielo (Scientific Eletronic Library Online), com os seguintes descritores: “ideação suicida”, “jovem adulto”, “ação do enfermeiro”, combinados com o operador booleano “AND”. Resultados: Foram selecionados seis artigos, sendo que o que é mais evidenciado nos remete para os fatores de risco e de proteção e que a ação do enfermeiro apesar de ser verbalizada como necessária na prevenção de ideação e comportamentos suicidas, o mesmo ainda não se encontra totalmente demonstrado. Conclusão: Os artigos selecionados revelaram lacunas no trabalho que é exercido pelos enfermeiros no cuidado a adolescentes com ideação suicida. A falta de conhecimento e a não formação por parte dos enfermeiros, bem como os tabus e consequentes preconceitos são também evidentes. Assim, a enfermagem deve estar qualificada para prestar um atendimento ético e eficaz ao doente fornecendo apoio psicológico priorizando a escuta qualificada e um cuidado livre de preconceitos ou julgamentos de valor

INFLUENCE OF SPLICES ON THE STABILITY BEHAVIOUR OF COLUMNS AND FRAMES

Abstract. The paper presents a study on the influence of splice connections on the stability behaviour of compressed steel columns. The column is modelled as two independent prismatic parts connected by a rotational spring at the splice location and rotational and extensional springs at the column ends to represent the effect of the adjacent structure. The general behaviour is characterized using a polynomial Rayleigh-Ritz approximation substituted into the potential energy function, in combination with the Lagrange's method of undetermined multipliers, and based on this model the critical load is found. The load-carrying capacity is analysed with respect to the following variables: (i) location and rotational stiffness of the splice, (ii) change in the column section serial size and (iii) column end-restraints stiffness coefficients. A nonlinear regression model is developed to predict simple relationships between the critical load and the relevant column characteristics

INFLUENCE OF SPLICES ON THE STABILITY BEHAVIOUR OF COLUMNS AND FRAMES

Abstract. The paper presents a study on the influence of splice connections on the stability behaviour of compressed steel columns. The column is modelled as two independent prismatic parts connected by a rotational spring at the splice location and rotational and extensional springs at the column ends to represent the effect of the adjacent structure. The general behaviour is characterized using a polynomial Rayleigh-Ritz approximation substituted into the potential energy function, in combination with the Lagrange's method of undetermined multipliers, and based on this model the critical load is found. The load-carrying capacity is analysed with respect to the following variables: (i) location and rotational stiffness of the splice, (ii) change in the column section serial size and (iii) column end-restraints stiffness coefficients. A nonlinear regression model is developed to predict simple relationships between the critical load and the relevant column characteristics