Search results for "JOINT"

Algorithmic modeling and prototyping of a structural joint for freeform surfaces

2016

This paper describes a parametric approach in architectural design through the elaboration of a process for generating non-standard structural joints particularly suitable for the arrangement of freeform surfaces in which maximum adaptability of the system is required to join a different number of members converging in a node from generic directions. The algorithmic definitions, developed using the graphical editor Grasshopper integrated with Rhinoceros, allow the management of an integrated workflow from the conceptual design of freeform surface to the prototyping of a structural joint with 3D printing techniques.

Experimental evaluation of the reliability of the adhesive joint in a 3rd-generation-solar-cell-integrated glass block

2017

Glass block is a building product that has been widely used since the mid-1800s for the construction of natural light capturing technical elements and, in the last decades, of translucent building envelopes. In a framework of increased quality requirements in terms of energy saving and environmental sustainability, innovations have been introduced to its standard configuration, including the integration of 3rd generation solar cells within the glass block, in order to improve its performance and make it capable of producing clean energy. Indeed, one of the two constituting glass shells has been integrated with a pre-assembled photovoltaic module and then bonded to a plastic “thermal belt” a…

Analysys and optimization of an end double-lap bonded joint for GFRP composite sandwich panels

2022

Although the best configuration of the joints used to connect a common GFRP sandwich panel with the main structures is the adhesively bonded one, that permit high static and fatigue performances as well as to avoid stress concentrations, mechanical or hybrid joints are still widely used in the industrial field. After a preliminary theoretical design, the optimal configuration of an end adhesively bonded double-lap joint constituted by a simple insert as internal adherent and the same face sheets as external adherent, has been researched. In detail, several experimental tests and successive numerical simulations under tensile and bending loading, performed by varying the main influence para…

Influence of parameters in a hybrid joint (SPR/bonded) GFRP-aluminum

2013

Fatigue characterization of hybrid joints CFRP-aluminum obtained by Self-Pierce Riveting (SPR)

2012

An optimization procedure for the friction stir welding FEM model of corner fillet joints

2012

Friction stir welding (FSW) is an energy efficient and environmentally "friendly" (no fumes, noise, or sparks) welding process, during which the sheets are welded together in a solid-state joining process. FSW is mature for simple configurations but a significant lack of knowledge is found when dealing with different designs such as T-sections, box sections and corner welds. Although the latter joint morphology has traditionally been considered unfeasible for the process, it seems to have a great potential to be used also for T-joint configurations, a recurrent design pattern in transport applications. A specific tool has been developed and a set of experimental welds has been produced with…

Environmentally Friendly Composites and Surface Treatments for Metal-to-Composite Hybrid Joints for Marine Application

2022

In this study, the use of natural fibres (flax and basalt) in combination with a recyclable epoxy matrix based on cleavable amines is suggested for improving the sustainability of marine industry. In addition, a new and eco-friendly anodizing process based on tartaric sulfuric acid solution (TSA) and a pore widening step in a NaOH aqueous solution was carried out on aluminium alloy (AA5083) to evaluate its effect on the adhesion strength and damage tolerance after low velocity impact of co-cured adhesive joints with a basalt fibre reinforced and recyclable laminate. The durability in marine environment was simulated by exposing samples to salt-fog spray conditions over a period of 90 days. …

3D skeleton-based human action classification: A survey

2016

In recent years, there has been a proliferation of works on human action classification from depth sequences. These works generally present methods and/or feature representations for the classification of actions from sequences of 3D locations of human body joints and/or other sources of data, such as depth maps and RGB videos.This survey highlights motivations and challenges of this very recent research area by presenting technologies and approaches for 3D skeleton-based action classification. The work focuses on aspects such as data pre-processing, publicly available benchmarks and commonly used accuracy measurements. Furthermore, this survey introduces a categorization of the most recent…

Imprese collegate e joint ventures

2019

The evolution and functioning of economic and financial markets have influenced the development of various forms of aggregation and entrepreneurial collaboration, aimed at offering goods and services petitive and to face the rules of competition in the comune. In particular, in the discipline of public contracts, the phenomenon of collaboration and the legal flexibility that distinguishes it is peculiar relief: over time, even European law has marked - in national laws - the introduction of disciplines aimed at regulating some forms of collaboration. In this context, moreover, new boundaries related to the scope of application of the principles and the discipline of the entrustments public …

¿Hay algo que los planes puedan hacer por la teoría del derecho?

2017

What can plans In his book, Legality (2011), Scott Shapiro puts forward what he claims to be "a new, and hopefully better" (better, namely, than the ones given so far) answer to "the overarching question of ‘What is law?’ - The central claim of this new account - the "Planning Thesis" - is that "legal activity is a form of social planning" -. "Legal institutions plan for the communities over which they claim authority, both by telling members what they may or may not do, and by identifying those who are entitled to affect what others may or may not do. Following this claim, legal rules are themselves generalized plans, or planlike norms, issued by those who are authorized to plan for others…