Nuno Peixinho

Prof. Dr. Nuno Peixinho


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2015 in Mechanism and Machine Theory
Verified
Journal Article
Closed access
JAJanete Alves
Janete Alves
NPNuno Peixinho
Nuno Peixinho
MSMiguel Tavares da Silva
Miguel Tavares da Silva
PFPaulo Flores
Paulo Flores
HLHamid M. Lankarani
Hamid M. Lankarani

1 November 2019 in Journal of the Mechanical Behavior of Biomedical Materials
Verified
Journal Article
Closed access
Flavio BartolomeuFlavio Bartolomeu
Flavio Bartolomeu
JFJaime Francisco Cruz Fonseca
Jaime Francisco Cruz Fonseca
NPNuno Peixinho
Nuno Peixinho
Nuno AlvesNuno Alves
Nuno Alves
Michael GasikMichael Gasik
Michael Gasik
GMG. Miranda
G. Miranda

28 March 2024 in Metals
Verified
Journal Article
Open access
PDF file
RPRui Pedro Pereira
Rui Pedro Pereira
NPNuno Peixinho
Nuno Peixinho
SCSérgio L. Costa
Sérgio L. Costa
This paper presents a review on the formability evaluation of AHSS, enhancing necking-based failure criteria limitations. Complementary fracture/damage constitutive modeling approaches specifically tailored to formability evaluation, validated through numerical and experimental methods, are also subjects of research. AHSS are widely processed through sheet metal forming processes. Although an excellent choice when lightweight, high-strength, and ductility are critical factors, their multi-phase microstructure accentuates forming challenges. To accurately model forming behavior, necking-based failure criteria as well as direct fracture models require improvements. As a necking-based failure model, the conventional forming limit diagram/curve (FLD/FLC) presents limitations in estimating direct fracture (surface cracks, edge cracks, shear cracks), as well as deformation histories under non-linear strain paths. Thus, significant research efforts are being made towards the development of advanced fracture constitutive models capable of predicting fracture scenarios without necking, which are more frequently observed in the realm of AHSS. Scientific community research is divided into several directions aiming at improving the forming and fracture behavior accuracy of parts subjected to sheet metal forming operations. In this review paper, a comprehensive overview of ductile fracture modeling is presented. Firstly, the limitations of FLD/FLC in modeling fracture behavior in sheet metal forming operations are studied, followed by recent trends in constitutive material modeling. Afterwards, advancements in material characterization methods to cover a broad range of stress states are discussed. Finally, damage and fracture models predicting failure in AHSS are investigated. This review paper supplies relevant information on the current issues the sheet metal forming community is challenged with due to the trend towards AHSS employment in the automotive industry.

1 March 2019 in Journal of Manufacturing Processes
Verified
Journal Article
Closed access
GMG. Miranda
G. Miranda
Susana FariaSusana Faria
Susana Faria
Flavio BartolomeuFlavio Bartolomeu
Flavio Bartolomeu
EPE. Pinto
E. Pinto
Nuno AlvesNuno Alves
Nuno Alves
Filipe SilvaFilipe Silva
Filipe Silva

1 March 2014 in Journal of Materials Processing Technology
Verified
Journal Article
Closed access
PPP. Pinto
P. Pinto
NPNuno Peixinho
Nuno Peixinho
Filipe SilvaFilipe Silva
Filipe Silva
DSDelfim Fernandes Soares
Delfim Fernandes Soares

1 February 2015 in International Journal of Impact Engineering
Verified
Journal Article
Closed access
SRS. Hashemi Rafsanjani
S. Hashemi Rafsanjani
PLPaulo B. Lourenço
Paulo B. Lourenço
NPNuno Peixinho
Nuno Peixinho