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The stress singularity exists at the crack tip and the weld toe. The stress singularities are expressed by a term of −1/2 power of distance r from the singular point for the crack tip, and ͨ...
The stress concentration factor in complex structure is important in the estimation of fatigue life and strength of the structure where nominal stresses are available in design stage. Extensive finite...
As a recent tendency to take high interest in the environmental problem, the time has come to reconsider the present working conditions. The thermal environment at an exposed working place in a hot se...
Corrosion of structural members of ships is one of the main problems for ship safety. In this report effect of grooving on static strength of corroded fillet welded joints for ship structure is inves...
The authors have established an accurate good analysis technique for presuming the experimental value of the stress and the deformation caused by phase transformation through the finite element method...
In a hot season with skylight, the storage of body heat during an operation at an exposed working place causes the deteriorating work efficiency and the physiological defect. Therefore, it is necessa...
This paper studies the method for estimating the welding residual stress effect on brittle fracture of structural steel based on the Weibull stress criterion. Using wide plate (WP) specimens with and ...
In order to simulate mechanical fatigue phenomena represented by cyclic plasticity such as ratcheting and hysterisis loop, the plastic stretching within a yield surface has to be described, whilst the...
A method for the estimation of the CTOD fracture toughness δc from toughness results of bend specimens with a machined notch has been studied. The Weibull stress criterion is adopted as a brittle frac...
The factor that influences the residual stress distribution generated by a quenching process was clarified and an analysis technique for estimating the residual stress distribution was established acc...
This paper studies the method for estimating the residual stress effect on brittle fracture of structural steel based on the Weibull stress criterion. Using 4-point bend specimens, tensile residual st...
Recently, plate thickness in mega container ships has reached the very heavy thickness range, exceeding 70mm, not common in shipbuilding. The most important requirement for ensuring structural
At the design stage of the large-scale steel structure, displacement and stress are generally analyzed by using the FEM.
The correlation between the quenching crack and the tensile stress was clarified and the quantitative evaluation method of the quenching crack generated by quenching was established. First of all, the...
It is well known that the buckling strength of spherical shell and cylindrical shell is reduced by initial shape imperfections and the reduction rate is much influenced by stress conditions. This redu...

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