Multiscale simulation to predict microstructure dependent effective elastic properties of an injection molded polypropylene component

•Derivation of microstructure dependent elastic properties in injection molded parts via a multiscale approach.•2-level homogenization scheme for semi-crystalline polymers with a revisited 3D radial spherulite model.•Folding of molecular chain, twisting and branch formation integrated in the lamella design.•Impact of both lamella designs with the same crystallization degree on the effective properties.•Both quiescent and shear induced crystallization computed and validated by experimental data.