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One of the most important characteristics of the sheet metal is its anisotropy. Asymmetric rolling (ASR) shows to be an adequate process to change the material anisotropy by increasing the normal anisotropy and decreasing the planar anisotropy. In this work, it is analysed the relationship between anisotropy and texture evolution using experimental and numerical approaches. Experimentally, the texture is modified by rolling, involving symmetric (SR), asymmetric rolling continuous (ARC) and asymmetric reverse (ARR) routes and different reductions per pass. The numerical analysis was performed through the visco-plastic self-consistent model where two hardening laws were considered, namely the Voce-type (V) and the dislocation density-based model (DDR). The main objective of the numerical method was to test the performance of the VPSC model for large plastic deformation. The Lankford coefficients decrease in RD and increase in TD with the increase in the total thickness reduction. This trend observed experimentally is well captured by the VPSC model, however, in terms of R-value, an overestimation is observed in both cases with better results for Voce-type law.

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His main research area has been welding and the mechanics of composite materials. He has published 50 papers in SCI journals and has delivered 30 presentations at international conferences. His h-index at scopus is 17 with about 1000 citations.Fábio Fernandes has a PhD in Mechanical Engineering and is a researcher at the University of Aveiro, Portugal. He has experience in material characterisation, Computer-aided Design/Engineering (CAD/CAE) and finite element analyses of real-world nonlinear problems. His research has resulted in several publications, including articles in high impact factor SCI journals. He has received many awards, most recently with the Mário Quartin Graça Scientific award, and has also received several honourable mentions. ContentsPreface XIII Section 1The Importance of Composites in the World Chapter 1 Introductory Chapter: The Importance of Composites in the World by António B. Pereira and Fábio A.O. Fernandes Section 2 Composite Preparation and Analysis Chapter 2 Fiber-Matrix Relationship for Composites Preparation

The welding of dissimilar metals was carried out using a pulsed Nd: YAG laser to join DP1000 steel and an aluminum alloy 1050 H111. Two sheets of each metal, with 30 × 14 × 1 mm 3 , were lap welded, since butt welding proved to be nearly impossible due to the huge thermal conductivity differences and melting temperature differences of these materials. The aim of this research was to find the optimal laser welding parameters based on the mechanical and microstructure investigations. Thus, the welded samples were then subjected to tensile testing to evaluate the quality of the joining operation. The best set of welding parameters was replicated, and the welding joint obtained using these proper parameters was carefully analyzed using optical and scanning electron microscopes. Despite the predicted difficulties of welding two distinct metals, good quality welded joints were achieved. Additionally, some samples performed satisfactorily well in the mechanical tests, reaching tensile strengths close to the original 1050 aluminum alloy. The possibility to effectively join high strength dual-phase steels with a soft, ductile 1XXX aluminum alloy opens a new range of design possibilities and attests the versatility of laser-type welding operations. The authors hope that this study can serve as a sounding base for any other future work in this area.