3 documents found, page 1 of 1
VForm-xSteels: virtual materials database
Andrade-Campos, António; Campos, Afonso; Henriques, João; Filho, Lucius; Túlio, Marcos; Conde, Mariana; Gonçalves, Mafalda; Prates, PedroNowadays, most of the product designs rely on the aid of simulation software, particularly Finite Element Analysis (FEA) programs. However, an accurate simulation requires a proper virtual/numerical material behavior reproduction, meaning a precise material characterization through constitutive models and their parameters. To numerically characterize a material, particularly a metal, (i) experimental tests, (ii...
Design of heterogeneous interior notched specimens for material mechanical char...
Conde, Mariana; Andrade-Campos, António; Oliveira, Miguel Guimarães; Martins, João Miguel PeixotoNowadays, virtual predictions are essential in the design and development of new engineering parts. A critical aspect for virtual predictions is the accuracy of the constitutive model to simulate the material behavior. A state-of-the-art constitutive model generally involves a large number of parameters, and according to classical procedures, this requires many mechanical experiments for its accurate identifica...
Comparative Study of the Efficacy and Safety Between Two Bipolar Instruments (E...
Cordeiro, Agostinho; Conde, Mariana; Torres, João; Morais, Nuno; Mota, Paulo; Rocha, Ana; Grimaldi, Giovanni; Botelho, Francisco; Nogueira, Vitor H.Introduction: Hemostasis is a central issue in laparoscopic surgery. There are no clear guidelines when it comes to the choice of what energy scissor to use. This study compares the efficiency and security between EnSeal® and LigasureTM in the sealing of arteries and veins in an ex-vivo porcine model. Methods: The instruments were compared with each other with respect to cutting speed and burst pressure (BP) af...