A dedicated strain gage has been developed to measure the stress intensity factor of cracks. Conventional strain gages dedicated to stress intensity factor analysis have been made by combining multiple elements into a single gage. Therefore, it took time
Shigeru KUROSAKI+4 more
doaj +1 more source
Hypocycloidal Inclusions in Nonuniform Out-of-Plane Elasticity: Stress Singularity vs. Stress Reduction [PDF]
Stress field solutions and Stress Intensity Factors (SIFs) are found for $n$-cusped hypocycloidal shaped voids and rigid inclusions in an infinite linear elastic plane subject to nonuniform remote antiplane loading, using complex potential and conformal mapping. It is shown that a void with hypocycloidal shape can lead to a higher SIF than that induced
arxiv +1 more source
Review on Classification Techniques used in Biophysiological Stress Monitoring [PDF]
Cardiovascular activities are directly related to the response of a body in a stressed condition. Stress, based on its intensity, can be divided into two types i.e. Acute stress (short-term stress) and Chronic stress (long-term stress). Repeated acute stress and continuous chronic stress may play a vital role in inflammation in the circulatory system ...
arxiv
Experimental Study on the Caustics of Moving Cracks and Elliptical Curvature under Impact Loading
A dynamic caustics test system was used, and different moving cracks were analysed to study the interaction between the crack growth rate, stress intensity factor, and curvature of the elliptical end of a moving crack under impact loading.
Haohao Luo+6 more
doaj +1 more source
Development of strain gages to analyze the stress intensity factor of a crack tip
There are currently one or two kinds of strain gages to measure the stress intensity factor. It might not be sometimes easy to analyze the stress intensity factor with those gages.
Shigeru KUROSAKI+5 more
doaj +1 more source
THE CALCULATION OF STRESS INTENSITY FACTOR STEEL OF RAILWAY WHEELS [PDF]
From an analysis of the dependence complex of carbon steel properties on structural parameters, it was found that for an isostructural state, the influence of austenite grain size on impact strength exceeds the dependence on carbon content.
Igor VAKULENKO+2 more
doaj +1 more source
Review of recent advances in local approaches applied to pre-stressed components under fatigue loading [PDF]
Fatigue strength of mechanical components in the high cycle regime depends on both the applied loading and the intensity of any residual stress field induced by either non-homogeneous plastic deformation or the solidification of a local portion of ...
Berto, Filippo+3 more
core +1 more source
Resolving stress state at crack tip to elucidate nature of elastomeric fracture [PDF]
Based on spatial-temporal resolved measurements of the stress field at crack tip based on polarized optical microscopy (str-POM), the stress analysis approach to elastomeric fracture uncovers new insights. We show new phenomenology in contrast to the standard description of linear elastic fracture mechanics (LEFM).
arxiv
Branching Instabilities in Rapid Fracture: Dynamics and Geometry [PDF]
We propose a theoretical model for branching instabilities in 2-dimensional fracture, offering predictions for when crack branching occurs, how multiple cracks develop, and what is the geometry of multiple branches. The model is based on equations of motion for crack tips which depend only on the time dependent stress intensity factors.
arxiv +1 more source
A novel weight function for RMS stress intensity factor determination in surface cracks [PDF]
This paper discusses the problem of stress intensity factor determination in surface cracks. In particular, the concept of root mean square stress intensity factors (RMS SIF) is discussed for the general class of semi-elliptical surface cracks.
Brennan, Feargal P.+1 more
core +1 more source