Wlla Abbad is a PhD candidate in the School of Aerospace, Mechanical and Mechatronic Engineering at The University of Sydney, Australia. Her research focuses on Additive Friction Stir Deposition (AFSD) and solid-state additive manufacturing of metallic and dissimilar material systems, with a strong emphasis on process modelling, thermal–mechanical simulation, and experimental validation. Wlla’s current work combines finite element modelling using COMSOL Multiphysics with experimental studies to investigate heat generation, thermal evolution, and residual stress development in multi-layer AFSD builds. Her research aims to support the transition of AFSD from an empirically driven process to a simulation-supported, industry-ready manufacturing technology, particularly for large-scale and structural applications. She is also interested in integrating modelling frameworks with sustainability considerations and circular manufacturing principles. She is an active member of the Australian Composites Manufacturing Cooperative Research Centre (ACM CRC), collaborating with industry partners and national research facilities, including Australian Nuclear Science and Technology Organisation (ANSTO) and Heavy Engineering Research Association (HERA), where she contributes to both experimental trials and modelling strategy development. Her work involves close interaction with industrial stakeholders to align research outcomes with practical manufacturing challenges. Before commencing her PhD, Wlla worked as a Research and Teaching Assistant in Industrial Engineering at the German Jordanian University and has professional experience in logistics, supply chain management, and engineering project coordination. She holds a Master’s degree in Industrial Engineering Management and has a strong interest in translating advanced manufacturing research into practical engineering solutions. Through her research and conference participation, Wlla aims to contribute to the advancement of solid-state additive manufacturing technologies and to support their broader adoption in sustainable and high-performance engineering applications.