Aritz Esnaola

Aritz Esnaola
Mondragon University | Mu · Department of Mechanical Engineering and Industrial Production

PhD

About

42
Publications
11,419
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
995
Citations

Publications

Publications (42)
Chapter
This paper presents the application of an advanced quality management tool, the design of experiments (DOE), in order to characterise a new material (carbon fibre-reinforced polyamide) used in the 3D printing process. The study focuses on the definition of optimal 3D printing parameters, such as nozzle size, temperature, print speed, layer height a...
Article
Full-text available
Polymeric materials, renowned for their lightweight attributes and design adaptability, play a pivotal role in augmenting fuel efficiency and cost-effectiveness in railway vehicle development. The tailored formulation of compounds, specifically designed for additive manufacturing, holds significant promise in expanding the use of these materials. T...
Article
Fiberglass reinforced polymeric composites are ideal for various applications due to their mechanical properties and lightweight. However, nowadays many fiberglass reinforced composite manufacturing processes are manual, which makes it complicated for them to meet industrial requirements regarding the quality and reliability of the manufactured par...
Article
Using 3D printing, continuous fibre can be steered in high curvature paths to create variable-stiffness (VS) laminates for applications such as notched laminates. In the present study, VS 3D printed continuous carbon fibre-reinforced thermoplastic laminates were designed, manufactured, and tested, to improve open-hole tensile behaviour. The design...
Chapter
This study presents an analysis of implementation and assessment of a frame of reference to adapt and execute an evolutionary continuous improvement process (CIP) in a mature small- and medium-sized enterprise (SME) that works in the capital goods sector. For this, the research team developed a continuous improvement model (CIM) to implement improv...
Article
The present paper investigates the suitability of cFF printed material and technologies for crashworthiness applications. To this end, the quasi-static and dynamic crush behaviour of 3D printed thin-walled hollow profiles reinforced with continuous carbon (cCF/PA) and glass fibres (cGF/PA), in axial and radial loading were analysed. Despite the spe...
Article
The present study has analysed the effect of cross-section geometry and the printing pattern of continuous carbon reinforced polyamide on the axial and radial crushing behaviour. Each geometry and printing pattern generated singular defects, but the most relevant microstructural aspect resulted the fibre orientation. The geometry with the re-entran...
Article
Full-text available
p> Purpose: This document describes a continuous improvement process assessment system (CIPAS). A continuous improvement process (CIP) was developed to progress through the levels of continuous improvement (CI) defined by Bessant, Caffyn and Gallagher (2001), and the CIPAS was developed to measure this evolution. The CIP and the CIPAS were tested i...
Article
Abstract Purpose – In this study, a frame of reference was developed to adapt and execute a continuous improvement process (CIP) for reinforcing a continuous improvement (CI) culture in an organisation. The study was undertaken in a mature capital goods company that did not succeed in institutionalising CI despite deploying many CI tools over the y...
Article
Full-text available
p> Purpose: The implementation of additive manufacturing (AM) or 3D-printer manufacturing for technical prototyping, preproduction series and short production series can bring benefits in terms of reducing cost and time to market in product development. These technologies are beginning to be applied in different industrial sectors and have a great...
Article
Full-text available
Taking advantage of an extended design and manufacturing space for composites, the technology of fused filament fabrication (FFF) of continuous fibre-reinforced thermoplastics shows great potential for the production of the next generation of lightweight structural parts. This process still has room for development. Moreover, knowledge of the mecha...
Conference Paper
Fused Filament Fabrication (FFF), or 3D printing, of continuous fibre reinforced composites allows getting advanced materials (steered-fibres, dispersed stacking sequence laminates or functionally graded composites), as well as complex geometries (cellular structures or metamaterials). However, FFF presents several drawbacks, especially when large-...
Article
The present study describes a methodology to apply the DOE (Design of Experiment) techniques. To show its application, a simple case was prepared that can be used as a training in industrial environments. In this case, fractional factorial designs were applied and the effects and interactions that influence the analyzed response were determined. Th...
Article
The present paper analyses the feasibility of designing a honeycomb-like crash-box, as a cellular structure, based on data obtained from the characterisation of the building block. In order to generalise the conclusions of the study, different thicknesses and testing velocities have been analysed. The main conclusion is that, if the same thickness...
Article
Quasi-unidirectional E-glass/polyester semi-hexagonal composite structures manufactured by different processes (vacuum assisted infusion, hand lay-up and ultraviolet (UV) cured pultrusion) have been studied for automotive crash applications. In order to evaluate the effect of the manufacturing process in energy absorption capability of the material...
Article
The development and validation of a modular composite impact structure is presented in the present paper. Quasi-static and dynamic impact tests of the composite components and a full frontal crash test of a vehicle prototype with composite impact structures manufactured by a new UV-pultrusion process have been performed. The results have demonstrat...
Thesis
Full-text available
La preocupación medio-ambiental va en aumento en diversos sectores de la industria, en especial en la industria automovilística. Por un lado se está trabajando en la reducción de emisiones de CO2 mediante el desarrollo de motores más eficientes. Por otra parte, en el desarrollo de vehículos eléctricos que contaminen el medio ambiente en menor medid...
Article
In this paper the out of die ultraviolet (UV) cured pultrusion for manufacturing impact automotive energy absorbing parts has been analysed. Aspects such as the UV source, pultrusion process variables and final mechanical and physical properties of the pultruted parts have been studied. The measured maximum pulling force in the die was approximatel...
Article
Feasibility of basalt fibre composites for automotive crash applications has been analysed and compared with E-glass fibre composites in the present study. Semi-hexagonal composite structures with different stacking sequences of E-glass and basalt fibres have been tested in quasi-static crush conditions and specific energy absorption (SEA) capabili...
Article
Considering additive manufacturing (AM) as a field of major interest, this paper is focused on the study of the mechanical properties and their variability with manufacturing orientation (anisotropy) for a metallic alloy manufactured by AM, using the technology of selective laser melting (SLM). This study has been performed on an austenitic stainle...

Network

Cited By