With the strong support of country for bridge construction and increase in supervision safety old bridges, visual-based crack target detection has a problem incomplete framing due to characteristics target, reflecting current algorithm model's poor ability accurately identify targets. In this paper, YOLO V5 was used address issue accuracy detection, relevant dataset created. Three attention mec...

Annually, millions of dollars are spent to carry out defect detection in key infrastructure including roads, bridges, and buildings. The aftermath natural disasters like floods earthquakes leads severe damage the urban infrastructure. Maintenance operations that follow for damaged often involve a visual inspection assessment their state ensure functional physical integrity. Such may appear form...

In the aerospace industry, composite materials are becoming more common. The presence of a crack in an aircraft makes it weaker and dangerous, can lead to complete fracture catastrophic failure. To predict position depth crack, various methods have been developed. For repair, diagnosis is extremely important. Even then, due uncertainties arising from sources such as environmental conditions, pa...

the prevalent method of irrigation in paddy fields in iran is continuous ponding, which changes to intermittent method at the time of water shortage. soil cracks are the main problem in intermittent irrigation. in this study, effects of adding rice straw on some soil physical characteristics and cracks were studied in paddy soils of the guilan province of iran. the experiment was performed as s...

Reliable and quantitative non-destructive evaluation for small fatigue cracks, in particular those in hard-to-inspect locations, is a challenging problem. Guided waves are advantageous for structural health monitoring due to their slow geometrical decay of amplitude with propagating distance, which is ideal for rapid wide-area inspection. This paper presents a 3D laser vibrometry experimental a...