“…,Hu et al (2013),Liu (2010),Tang et al (2013),Simnett (2009),Yuan et al (2010),Kang and Cho (2002a, b),Chittaro and Corvaglia (2003) Using Kawabata test, Ji et al (2006a, b), Charfi et al (2006), Chen et al (2012), Dai et al (2001), Zhang et al (2012), Han et al (2009) Using plate theory Wang and Devarajan (2008), Zhou et al (2008) Surface and volume difference Zhengdong and Shuyuan (2011), Vassilev and Spanlang (2014) Using genetic algorithm for determining of spring stiffness coefficient Louchet et al (1995), Mongus et al (2012) Using non-linear spring Asmaa and Elsayed (2011) Using beam's mechanical behavior Villard and Borouchaki (2005) Using a model based on curvature and change rate of the angle Liu et al (2012a, b),Bridson et al (2003) …”