This research examines the static push-out behavior of underslung Short Shear Headed (SHS) studs within Engineered Cementitious Composites (ECC) using a three-dimensional finite element model constructed in ANSYS. The model considers material nonlinearity, interfacial and geometric complexity, as well as multi-physical phenomena to estimate the load-slip response, associated failure modes, and the shear capacity of the studs. The model prediction was validated with experimental data and was found to be accurate. The results show how ECC greatly outperformed conventional concrete in enhancing the ductility and load-bearing capacity of shear connectors. This study contributes with knowledge on the design and optimization of composite structures incorporating ECC. The model accounts for the non-linear behavior of materials under load, which is essential for accurate predictions. The model considers the intricate interactions at the interface between the studs and the ECC, as well as the geometric details of the setup. This aspect indicates that the model takes into account various physical effects that may influence the performance of the shear studs.