JunHwa Song
Korea Advanced Institute of Science and Technology · 材料科学
研究室紹介
Professor JunHwa Song's research lab specializes in fracture mechanics and fatigue behavior of engineering materials, with a focus on crack growth and closure phenomena in metallic alloys under variable-amplitude and random loading conditions. The lab investigates the mechanical response of both physically short and conventionally long cracks, particularly in high-strength materials like 2024-T351 aluminum alloy, using advanced experimental techniques and innovative data analysis methods. A key research direction involves developing reliable, cost-effective methods for determining crack opening load under complex loading histories, enhancing the accuracy of fatigue life prediction. The lab also emphasizes the application of fracture mechanics principles to improve structural integrity and reliability in aerospace and transportation industries.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
8Abstract Crack growth and closure behavior of physically short and conventionally long cracks under random loading are extensively investigated, utilizing test results of 2024-T351 aluminum alloy obtained by performing narrow- and wide-band random loading tests for various stress ratios and random loading block lengths. A noise reduction method is developed to determine the crack opening load under random loading more easily, precisely, and economically. Crack growth rates are analyzed mainly in