<p>Compared to other actuators, the Shape Memory Alloy-based actuator has the advantage of being compact for the same actuation force. This advantage has a significant impact on actuators integrated with compliant mechanisms. One can optimize the influencing design parameters to utilize such actuator performance effectively. This work focuses on modeling and numerically simulating an SMA-embedded deformable structure. In this regard, a thermodynamically consistent constitutive model for SMA to capture an arbitrary thermomechanical loading is considered. The actuator performance has been computed by solving the constitutive model of SMA along with the kinematic and equilibrium constraints obtained from the deformable structure. In the analysis, the actuation strain has been studied under various operating conditions, such as the prestress value of the SMA actuator, operating temperatures, and the structural properties of the mechanism. Along with the simulation results, illustrations have been given regarding the influence of these parameters. All these results are compiled into a set of level curves for actuator design. Finally, a design procedure along with the analysis of actuator performance for electrical input has been provided to demonstrate the utilization of the simulation results.</p>