


Masumi Hasegawa | Last modified date:2023.07.11 |

Assistant Professor /
sustainable bioresource science
Department of Agro-environmental Sciences
Faculty of Agriculture
Department of Agro-environmental Sciences
Faculty of Agriculture
Graduate School
Undergraduate School
E-Mail *Since the e-mail address is not displayed in Internet Explorer, please use another web browser:Google Chrome, safari.
Homepage
https://kyushu-u.pure.elsevier.com/en/persons/masumi-hasegawa
Reseacher Profiling Tool Kyushu University Pure
http://ffpsc.agr.kyushu-u.ac.jp/rigaku/
Evaluation of wood quality are important for a sustainable supply and long-term utilization of wood. The laboratory is studying nondestructive evaluation of physical and mechanical properties in wood and wood based materials using ultrasonic and X-ray CT. .
Academic Degree
Ph.D
Country of degree conferring institution (Overseas)
No
Field of Specialization
Wood Science, Wood Technology
Outline Activities
A wooden construction can sustain static, dynamic, earthquake, and wind loads over its entire life. However, the stress conditions of its structural components must be determined nondestructively in order to prevent its collapse. An ultrasonic technique has been researched in order to apply it to the quality control of sawing timber and to the maintenance of posts and beams in a wooden construction. The ultrasonic velocity is an important parameter in the nondestructive testing of wood.
Research
Research Interests
Membership in Academic Society
- Nondestructive evaluation in fire-retardant wood by air-coupled ultrasonic and X-ray CT
keyword : fire-retardant wood, air-coupled ultrasonic, non-contact, NDT, X-ray CT
2015.04. - Non-contact and nondestructive evaluation in wood by air-coupled ultrasonic
keyword : air-coupled ultrasonic, non-contact, NDT
2011.04. - Nondestructive evaluation in wood by surface wave
keyword : surface wave, ultrasonic, shear wave, nondestructive, wood, moisture content
2010.10Acosutoelasticity is an effect that ultrasonic wave velocity propagating through materials changes due to applied stress. The final objective of this study is to develop a new method for evaluating stress state in wood by the ultrasonic technique. We obtained the existence of acoustoelastic phenomena in wood before. Based on this phenomena, we measured the stress state of wood by the acoustoelastic method. The application of the acoustoelastic effect as a new method for stress measurement in wood is expected.. - Propagation characterization of ultrasonic wave in wood
keyword : ultrasonic wave, wood, longitudinal wave, shear wave, density, moisture content, wood property
2007.04. - Studies on the physical and mechanical properties of fast growing trees
keyword : fast growing tree, wood property, mechanical property, Melia azedarach, Choerospendias axillaris, Acacia
2003.10. - Acoustoelastic effect in wood
keyword : acoustoelasticity, ultrasonic, shear wave, stress analysis, wood
1996.04Acosutoelasticity is an effect that ultrasonic wave velocity propagating through materials changes due to applied stress. The final objective of this study is to develop a new method for evaluating stress state in wood by the ultrasonic technique. We obtained the existence of acoustoelastic phenomena in wood before. Based on this phenomena, we measured the stress state of wood by the acoustoelastic method. The application of the acoustoelastic effect as a new method for stress measurement in wood is expected.. - Nondestructive evaluation of deformation behaviors in pretreated lumber during drying using digital image correlation method
keyword : DIC method, Wood drying, Visualization, NDE
2012.09~2019.03. - Ultrasonic method for determining strength properties of timber joints
keyword : ultrasonic, velocity, stress analysis, timber joint, drift-pin
2006.04~2020.03.
- Recently, there has been an increasing preference for foods and agricultural products with quality and safety assurance guarantees. As a result, interest in developing techniques that evaluate the quality and safety of foods and agricultural products is steadily intensifying. In this project, we investigate the feasibility of using a novel non-contact ultrasonic technique to measure fruit firmness.
- In this project, we attempt to visualize the deformation behaviors of lumber during drying using the digital image correlation (DIC) method.
Papers
Presentations
- Japan Wood Protection Association
- Wood Technological Association of Japan
- The Japan Wood Research Society
- The Japanese Society for Non-Destructive Inspection
Educational


Unauthorized reprint of the contents of this database is prohibited.
