재료비선형 해석(Material Nonlinear Analysis)
* Tension Only / Compression Only / Gap / Nonlinear Elastic
* Linear Orthotropic Elastic c.f) Linear Isotropic Elastic
* Bilinear/Multilinear Elastic-Plastic 모델 : Isotropic/Kinematic Hardening
* Temperature 모델(Thermal Elastic), Creep 모델(Thermal Elastic Platic and Creep)