About Us


Mechanics & Applied Technology & Research for Innovative Structures

MATRiSeb is a full service structural engineering consulting firm located in Ankara, Turkey. MATRiSeb has wide range of experience from complete structural design of new buildings to peer review of design, rehabilitation of existing facilities, forensic analysis, failure investigation, structural and seismic evaluation and due diligence, condition assessment and vibration analysis. We offer high-end structural engineering services in four sectors; nuclear power industry, wind energy, seismic and structural health monitoring. 




MATRiSeb provides innovative engineering solutions with an emphasis on quality and integrity and commitment to the engineering principles. We thrive to be in the fore-front of advanced research and technology and actively contribute enhancement of our profession.



MATRiSeb aims to become the leading provider of professional engineering services in the field of applied mechanics and to earn the trust of its clients and the respect of its peers.

Meet the Team

Dr. Ömer O. ErbayFounding Partner

Dr. Erbay is a registered professional engineer with over 16 years of research and professional experience. He has worked and managed projects for analysis, design, investigation, repair, and rehabilitation of structural systems using internationally recognized codes, standards, regulations, and guidelines such as AISC, ACI, NRC, AWWA, ASME B&PV, AWEA, IEC, ASTM, and EN. He has strong background and understanding of structural dynamics, earthquake engineering, wind effects on structures, analysis and design of wind turbines, soil-structure-interaction and seismic analysis and design of nuclear structures, analysis, design, and rehabilitation of concrete, steel, and composite pipelines, collapse analysis, failure risk assessment, fragility evaluation, probabilistic analysis, fracture mechanics, fatigue evaluation, finite element modeling with non-linear and temperature-dependent materials, and structural optimization.

Dr. Yalçın BulutFounding Partner

Dr. Bulut is a Structural and Seismic Specialty Engineer with over twelve years of experience in performing structural analysis and design for various types of structures including nuclear power facilities, steel and prefabricated concrete industrial facilities, towers, steel platforms, substructures, retaining walls. He is experienced seismic soil-structure interaction (SSI) analysis, design of nuclear reactor Seismic Category - I structures, and evaluation and retrofit design of nuclear facilities. He has over five years of interdisciplinary research experience in the fields of experimental mechanics, structural health monitoring, model based damage identification, system identification and vibration control. He has worked closely with US Nuclear Regulatory Commission (NRC) and US Department of Energy (DOE) standards for nuclear facilities, including NUREG 0800, NRC Regulatory Guides, ASCE 4, ASCE 43, ACI 349, ACI 318.

External Consultants

Below are the external consultants that mentor us and that we work with.