Fracture of Structural Steel Elements: High-Temperature Creep and Hydrogen Influence

Fracture of Steel in Energy Machine Parts: High-Temperature Creep and Hydrogen Influence presents advanced mathematical modeling approaches for evaluating the effects of high-temperature creep, hydrogen diffusion, damage accumulation, and creep development in steam pipelines, steam turbine discs, heat exchanger tubes, and steam boiler drums. The book discusses the strength and durability of metallic materials and structural elements at the stage of volumetric damage, then at local damage, and, finally, at the end of their residual life. It introduces models and algorithms for simulating these complex processes (high-temperature creep, hydrogen diffusion, damage accumulation, and creep development) that evolve at different rates in different areas of a structure. The various types of cracks are addressed, including through-thickness cracks, internal cracks, surface cracks, and elliptical cracks.

• Presents computational models for evaluating the effects of creep, hydrogen, and high temperature on the steel components of energy systems
• Describes the kinetics of damage accumulation and crack growth
• Covers through-thickness, internal, surface, and elliptical cracks
• Explores the durability and residual life of structural steel elements under a combined creep and hydrogen influence

Maciej Dutkiewicz is a Professor at Bydgoszcz University of Science and Technology, Poland, with a Doctor of Technical Sciences and a PhD in Civil Engineering. His extensive scientific interests revolve around various areas such as damage identification, Structural Health Monitoring, fracture resistance of elements and structures, durability, loading in hydrogen-containing media, vibration control, metamaterials, dynamic systems, smart technologies for vibration control, the efficiency of vibration dampers, guide waves, machine learning applications, computational, numerical, and experimental fields, Data Science, and exploring inverse and physic-informed machine-learning techniques, as well as probabilistic analysis. He has authored over 150 scientific works and maintains a collaborative network with researchers from Ukraine, USA, Turkey, Brazil, France, Italy, Poland, Ethiopia, Czech Republic, and Romania.

Oleksandr Andreykiv is a corresponding member of the National Academy of Sciences of Ukraine, Professor, and Doctor of Technical Sciences. He serves as the Head of the Department at the Ivan Franko National University of Lviv, and also holds the position of Leading Researcher at the Karpenko Physico-mechanical Institute of the National Academy of Sciences of Ukraine. With a prolific career, he has authored over 600 scientific works, including 17 monographs and a textbook, and holds 31 patents for inventions. His primary focus in scientific research lies in the field of physico-chemical mechanics, specifically studying the destruction of structural materials, the mechanics of delayed destruction in structural materials and elements under the influence of force and physico-chemical factors, as well as material and structural element diagnostics.

Oksana Hembara is a highly accomplished professional with the title of Professor and Doctor of Technical Sciences. She holds positions as a Professor at Lviv Polytechnic National University and as a Leading Research Scientist at the Karpenko Institute of Physics and Mechanics of the National Academy of Sciences of Ukraine. With a strong academic background, she has authored over 100 scientific papers, including a monograph. Her primary area of expertise lies in the mechanics of deformable solids, with a specific focus on the strength and durability of structural elements under complex loading conditions in hydrogen-containing media.

Iryna Dolinska is an accomplished Senior Researcher and holds a Doctor of Technical Sciences degree. She serves as a Leading Researcher at the Karpenko Physico-mechanical Institute of the National Academy of Sciences of Ukraine, as well as a Professor at Bydgoszcz University of Science and Technology. With a strong research background, she has authored over 100 scientific papers, including three monographs and one textbook. Her primary area of expertise lies in the mechanics of deformable solids, particularly focusing on the strength and durability of structural elements under the influence of force and physicochemical factors. Additionally, she specializes in the diagnosis of materials and structural elements using the acoustic emission method.

Olha Chepil is a highly accomplished Senior Researcher with a PhD in Engineering. She is a Senior Research Scientist at the Karpenko Institute of Physics and Mechanics of the National Academy of Sciences of Ukraine and also serves as an adjunct at the Bydgoszcz University of Science and Technology. With a strong research background, she has authored over 50 articles. Her primary area of scientific activity lies in studying the strength and durability of structural elements under complex loading conditions in hydrogen-containing media, as well as the mechanics of deformable solids.