Masahiro Sakano

TL;DR: In this article, a cyclic loading test was carried out by using box-sectioned beam-column joint specimens with or without a web-corner fillet, and column-base joint specimens without triangular ribs, respectively, and it was demonstrated that the ELC fatigue crack initiation life of both steel pier beam and column joints could be estimated by Manson-Coffin's law and the plastic-strain range at the crack initiation point.

TL;DR: In this paper, an experimental approach for corrosion fatigue behavior of welded structures subjected to simultaneous biaxial, rotating-bending and torsional loading, results of which could be used in railway bridges, ship, offshore structures, ground vehicles etc.

TL;DR: For example, this paper reported ±10.8δyの繰返し載荷を受けた最も短寿命の試験体では3サイクル目に表面長ささ数mm程度の亀裂が発見され, 21サイークルでフランジが破断した.

TL;DR: In this article, it has been observed that fatigue crack propagation in the corrosive medium is strongly influenced by weld-geometry parameter (weld-toe undercut) which played a significant role in reducing the fatigue life and fatigue strength of butt-welded structures, and accelerated the time to propagate to failure.

TL;DR: In this article, the authors studied the fatigue crack growth behavior in the visinity of ΔKth under computer simulated variable amplitude loads of highway bridge and evaluated it by using the linear damaged rule with paris law and Δ Kth including the influence of stress cycles below Δ kth with adequate accuracy.