Foreign object damage (FOD) occurs when hard, millimeter-sized objects such as gravel or sand are ingested into aircraft jet engines. Particles impacting turbine blades at velocities up to about 300 m=s produce small indentation craters which can become sites for fatigue crack initiation, severely limiting the lifetime of the blade. A framework for analyzing FOD and its e5ect on fatigue crackin...

Heavy duty riveted gratings are a good alternative for applications that often employ other deck systems, if they carefully analyzed under static and fatigue loads. Understanding the behavior of steel tire patch loads will aid in establishing design model based on an effective beam width. In addition, use system avoids welded details may lead to cracking, thereby improving life. this study, ana...

This research work focuses on investigating the fatigue and thermal cracking resistance of asphalt binder with different percentages styrene-butadiene-styrene (SBS) utilizing rheological testing methods. The laboratory experimental program includes Dynamic Shear Rheometer (DSR) test at intermediate temperature for Bending Beam (BBR) low to assess cracking. polymer-modified binders were prepared...

Wear and fatigue are important factors in determining the reliability of microelectromechanical systems (MEMS). While the reliability of MEMS has received extensive attention, the physical mechanisms responsible for these failure modes have yet to be conclusively determined. In our work, we use a combination of on-chip testing methodologies and electron microscopy observations to investigate th...

This paper presents an experimental study and theoretical analyses on the monotonic and fatigue performance in bending of a polyvinyl alcohol (PVA) fiber-reinforced engineered cementitious composite (ECC) overlay system. The influence of the interfacial characteristics between overlay and old concrete substrate on the overall bending performance is investigated. The experimental results show th...

Abstract The use of magnesium and its alloys as temporary implants has gained interest in the last two decades due to their good mechanical properties bio-degradability in-vivo conditions. However, issues higher corrosion rate stress cracking persist, which are responsible for implants’ early failure. This review paper focuses on challenges involved magnesium-based advancements mitigating corro...