1. Professor, School of Engineering of São Carlos, Univ. of Sao Paulo, Av. Trabalhador Saocarlense, 400, 13566-590 Sao Carlos, São Paulo, Brazil (corresponding author).
2. Professor, School of Engineering of São Carlos, Univ. of Sao Paulo, Av. Trabalhador Saocarlense, 400, 13566-590 Sao Carlos, São Paulo, Brazil.
3. Undergraduate Student, School of Engineering of São Carlos, Univ. of Sao Paulo, Av. Trabalhador Saocarlense, 400, 13566-590 Sao Carlos, São Paulo, Brazil.