Hem Bahadur Motra | Rock Mechanics | Applied Engineering Award

Dr. Hem Bahadur Motra | Rock Mechanics | Applied Engineering Award

Lecturer, Christian Albrecht University of Kiel, Germany

Dr. Hem Bahadur Motra is a distinguished geomechanics expert and academic leader with a German nationality and South Asian roots. He currently serves as the Head of the Geomechanics Experimental Laboratory at Christian-Albrechts-Universität zu Kiel and holds lecturing positions at both Kiel University and the University of Applied Sciences Kiel. His interdisciplinary expertise spans rock mechanics, structural engineering, and geotechnical testing. Renowned for his international collaborations and practical research applications, Dr. Motra has been affiliated with premier institutions across Europe, Asia, and North America. His scientific work integrates multiscale experimental modeling, anisotropic behavior of rocks, and geotechnical system responses under complex stress conditions. Beyond academia, he consults for engineering firms in Germany, Nepal, and the U.S., translating complex research into applied solutions. Dr. Motra is a forward-thinking researcher committed to developing sustainable subsurface engineering practices through innovation, data integration, and high-fidelity experimental validation.

Professional Profile

Scopus

Education

Dr. Hem Bahadur Motra has pursued a progressive academic trajectory in civil engineering, specializing in geomechanics and structural engineering. He earned his Doctorate in Engineering (Dr.-Ing.) from Bauhaus-Universität Weimar with the highest distinction, focusing on quality assessment of structural experimental models. His Master’s degree in Civil Engineering with a focus on Geotechnics and Infrastructure was awarded by Gottfried Wilhelm Leibniz Universität Hannover, with excellent academic performance. He completed his Bachelor’s degree in Civil Engineering at Tribhuvan University, Nepal, graduating with distinction. Dr. Motra is currently finalizing his Habilitation at Christian-Albrechts-Universität zu Kiel, focusing on the multiscale and multipurpose integration of rock physics and geomechanics. His education is enriched by fellowships and scholarships from prestigious organizations, including DAAD and national academic institutions. His academic foundation blends strong analytical theory with a practical, problem-solving approach, making him a leader in both scientific inquiry and real-world application.

Experience

Dr. Motra brings extensive professional and academic experience across universities, research institutes, and engineering consultancies. He leads the Geomechanics Experimental Laboratory at Christian-Albrechts-Universität zu Kiel, where he also teaches courses in marine and terrestrial geotechnics. He lectures at the University of Applied Sciences Kiel in civil engineering, and formerly contributed to the Bauhaus-Universität Weimar as a research assistant. Internationally, he has completed multiple research stays across Europe, North America, and Asia, working with leading experts in rock physics, shale hydrocarbon exploration, and underground construction. Additionally, he co-founded Geocom International Pvt. Ltd. in Nepal, focusing on geotechnical investigation, tunneling, and subsoil surveys. His consulting experience includes collaborations with Babendererde Engineers (Germany), Engineering and Testing Service Inc. (USA), and Kastamandap Associate Pvt Ltd (Nepal). His work integrates research, teaching, consulting, and experimentation—making him an applied engineering professional with global influence and technical depth.

Research Focus

Dr. Hem Bahadur Motra’s research bridges the gap between theoretical rock mechanics and applied geotechnical engineering. His central focus is on the multiscale behavior of anisotropic rocks under true-triaxial and thermal stress environments. He investigates micromechanical properties of kerogen-rich formations, deformation in high-rank coals, and the behavior of shale under varying lithological and stress conditions. His approach emphasizes experimental validation using advanced triaxial apparatus, with applications in deep tunneling, underground energy storage, and hydrocarbon recovery. Dr. Motra also explores quality control techniques for structural experimental models and integrates numerical modeling to simulate real-world geotechnical behavior. His work has strong implications in sustainable infrastructure design, underground construction, and the geotechnical challenges of climate-resilient development. By combining laboratory precision, field knowledge, and modeling expertise, Dr. Motra contributes to safer and more efficient engineering solutions in both marine and terrestrial environments.

Publication Top Notes

Title: Elastic properties of anisotropic rocks using a stepwise loading framework in a true triaxial testing apparatus
Journal: Geoenergy Science and Engineering
Authors: Hem Bahadur Motra et al.
Summary: This study investigates the elastic response of anisotropic rocks under multiaxial loading. A custom true-triaxial apparatus was used to capture stiffness variations and directional dependency in rock specimens. Results help improve geomechanical models for underground construction and energy extraction.

Title: Influence of lithological contrast on elastic anisotropy of shales under true-triaxial stress and thermal conditions
Journal: International Journal of Rock Mechanics and Mining Sciences
Authors: Hem Bahadur Motra et al.
Summary: This paper examines how lithological heterogeneity affects shale behavior under combined stress and temperature conditions. Findings aid in optimizing hydraulic fracturing and subsurface fluid flow simulations.

Title: Elastic anisotropy and deformation characteristics of Pennsylvania anthracite
Journal: International Journal of Coal Geology
Authors: Hem Bahadur Motra et al.
Summary: Focuses on deformation and elastic responses of high-rank coals. The study provides insight into coal seam stability and gas extraction efficiency, with implications for mine safety.

Title: Micromechanical variation of organic matter (kerogen type I) under controlled thermal maturity progression
Journal: Journal of Rock Mechanics and Geotechnical Engineering
Authors: Hem Bahadur Motra et al.
Summary: Analyzes the microstructural and mechanical evolution of kerogen under simulated thermal aging. Results assist in understanding source rock maturation and improving petroleum system models.

Conclusion

Dr. Motra exemplifies the spirit of applied engineering through his blend of academic excellence, international collaboration, and field-relevant innovation. His contributions directly address challenges in geotechnical and subsurface engineering, making his candidacy highly suitable and compelling for the Research for Applied Engineering Award.

Huidong Tong | Structural Engineering | Best Researcher Award

Dr. Huidong Tong | Structural Engineering | Best Researcher Award

Doctor student, Tongji university, China

Dr. Huidong Tong is currently a doctoral student at Tongji University, China, specializing in geotechnical and rock mechanics engineering. His research is centered around the mechanical behavior of rocks under multifactorial conditions, particularly the effects of thermal coupling, chemical corrosion, and long-term creep. With a keen interest in constitutive modeling, Dr. Tong has contributed to the development of innovative elastic-plastic and creep models that have advanced the understanding of rock deformation and failure mechanisms. He has published several peer-reviewed articles in prestigious journals such as Energy, Powder Technology, and Materials. In addition to his academic research, he is a named inventor on a patent involving intelligent digital building systems based on 6G digital twins. Dr. Tong’s work not only deepens theoretical knowledge but also supports practical engineering applications, particularly in underground construction, energy extraction, and hazard prevention. His dedication positions him as an emerging expert in his field.

Professional Profile

🔹 Education

Dr. Huidong Tong is currently pursuing his Doctor of Philosophy (PhD) in Civil Engineering at Tongji University, one of China’s leading institutions for science and engineering. His doctoral research focuses on rock mechanics, with a particular emphasis on the environmental factors—such as temperature and chemical corrosion—that influence the strength and deformation properties of rock materials. Prior to his PhD studies, Dr. Tong completed his Bachelor’s and Master’s degrees in Civil or Geological Engineering (institutional details not provided), where he laid the foundation in mechanics, materials science, and geotechnical analysis. During his academic journey, he has consistently demonstrated academic excellence and a strong aptitude for both theoretical modeling and experimental work. He has also received support from nationally funded projects like those under the National Natural Science Foundation of China, underscoring his academic promise and potential. His education is complemented by interdisciplinary exposure to materials science and computational mechanics.

🔹 Experience

Dr. Huidong Tong’s experience is rooted in both academic research and applied engineering science. As a doctoral researcher at Tongji University, he has been deeply involved in high-level scientific investigations into rock behavior under thermal-mechanical-chemical conditions. He has served as a principal or co-investigator in projects funded by the National Natural Science Foundation of China (Grant Nos. 51978401, 42107168), which has allowed him to explore damage modeling, true triaxial testing, and digital simulation of geo-materials. In parallel, Dr. Tong has collaborated with international scholars and contributed to several joint publications, showing his ability to work across disciplinary and institutional boundaries. His experience also extends to innovation, where he co-authored a patent on digital twin systems for intelligent buildings. His skills include constitutive modeling, finite element analysis, high-temperature testing, and multiphysical coupling analysis. With several SCI-indexed publications, he has built a strong profile as a researcher bridging theoretical advances with real-world geotechnical challenges.

🔹 Research Focus 

Dr. Huidong Tong’s research primarily investigates the transient and time-dependent mechanical properties of rocks under the influence of multi-physical environmental conditions, including thermal effects, chemical corrosion, and mechanical loading. His work emphasizes understanding both macroscopic mechanical behavior and microscopic damage evolution, enabling the development of sophisticated constitutive models. His current projects focus on modeling true triaxial creep behavior and coupled thermo-mechanical damage mechanisms, which are essential for underground energy storage, deep excavation stability, and geothermal systems. He integrates experimental testing with advanced numerical simulation, using models such as elasto-plastic and viscoelastic frameworks to characterize rock deformation. Another facet of his work includes hydrate-bearing and cemented sand behavior, essential for applications in offshore geotechnics and gas hydrate exploitation. Dr. Tong’s research aims to enhance predictive accuracy for rock mass behavior, contributing to engineering safety, design resilience, and infrastructure longevity under challenging environmental conditions.

🔍 Publication Top Notes

1. Chen, S., Tong, H.*, Du, X., & Chen, Q. (2025).

Title: A new elastic-plastic constitutive model for the coupled thermo-mechanical damaged rock considering dilatancy equation
Journal: Powder Technology
DOI: 10.1016/j.powtec.2025.121415
ISSN: 0032-5910

Summary:
This study introduces an elastic-plastic constitutive model that captures the effects of thermal-mechanical coupling in rocks, incorporating a novel dilatancy equation. The model accounts for damage evolution under elevated temperatures and triaxial loading, providing more accurate predictions of post-peak behavior. The theoretical framework was validated against experimental data and shown to enhance the simulation of deep underground rock deformation scenarios, improving the understanding of stress redistribution in rock masses.

2. Tong, H., Chen, Y., Du, X., Chen, S., Pan, Y., Wang, S., … & Fernandez-Steeger, T. M. (2024).

Title: A state-dependent elasto-plastic model for hydrate-bearing cemented sand considering damage and cementation effects
Journal: Materials, 17(5), 972
DOI: 10.3390/ma17050972

Summary:
This paper presents a state-dependent constitutive model for hydrate-bearing cemented sands, factoring in cementation degradation and particle interaction effects. The research is critical for offshore and arctic engineering, where hydrate dissociation and mechanical disturbance can destabilize foundations. The model was verified using lab tests and implemented numerically, highlighting its utility for risk assessment and ground response prediction during gas hydrate extraction or thermal stimulation.

3. Tong, H., Chen, Y., Du, X., Xiao, P., Wang, S., Dong, Y., … & Long, Z. (2023).

Title: A true triaxial creep constitutive model of rock considering the coupled thermo-mechanical damage
Journal: Energy, 285, 129397
DOI: 10.1016/j.energy.2023.129397

Summary:
In this publication, Dr. Tong develops a true triaxial creep model for rock under thermo-mechanical loading, considering anisotropic damage and long-term deformation behavior. This model improves the understanding of rock mechanics in high-temperature environments such as geothermal reservoirs, deep tunnels, and nuclear waste storage sites. The results showed high agreement with experimental data, making it suitable for engineering applications involving sustained thermal and stress exposure.

🏁 Conclusion

The Best Researcher Award in Structural Engineering serves as a prestigious platform to recognize individuals whose scholarly work has made significant advancements in understanding, modeling, and improving structural systems. In an era where infrastructure faces multifaceted challenges from environmental degradation, climate change, and evolving societal needs, the role of innovative research in structural engineering becomes more vital than ever. By honoring researchers like Dr. Huidong Tong—who exemplify excellence in experimental and theoretical modeling under complex environmental conditions—this award not only celebrates individual brilliance but also inspires a culture of academic and professional innovation. Through contributions such as damage constitutive modeling, thermo-mechanical coupling, and true triaxial testing, awardees influence the future of construction safety, sustainability, and resilience. This recognition is more than an accolade; it is an affirmation of dedication, impact, and forward-thinking vision in the engineering world. We welcome applications from global researchers committed to shaping the structural future.