An improved meshless method for finite deformation problem in compressible hyperelastic media

Hyperelastic materials are considered as special category of elastic solid because their nonlinear complicated constitutive laws. Due to large strain state, the behaviour such is often in finite deformation analysis. The behavior important. In this study, a novel meshless radial point interpolation method (RPIM) enhanced by Cartesian transformation (CTM), an effective numerical integration, presented for hyperelastic media under state with total Lagrange formulation. Unlike mesh-based approaches, methods have shown advantages analysis problems. developed CTM-based RPIM thus free from need background cells, which used integration many conventional meshfree approaches. owns some desirable features technique solving deformation, will be illustrated through experiments our computed results validated against reference solutions derived other