This paper discusses the strength mis-match effect on cleavage fracture of notched materials based on the local approach. The aim of the study is to verify the independence of the critical Weibull stress at fracture on the strength mis-match condition. Diffusion bonded joints were made with two materials S and H different in strength level. Two types of 3-point bend specimen were extracted. One...

Background: Diet quality indices address the diet’s complexity and are calculated by a combination of foods and/ or nutrients which together represent a dietary pattern. The current study analysed the relationship between the common carotid artery intima media thickness (cIMT), the presence of plaque and the carotid target organ damage (cTOD) with the diet quality assessed through the Diet Qual...

The fatigue crack growth-rate test of rail head, waist, and bottom material for U71Mn welded was carried out. Digital image correlation (DIC) used to capture the full-field displacement. crack-tip position accurately obtained based on displacement data, an accurate opening (CTOD) measurement point found. CTOD values head under overloaded unloaded condition were extracted, area size elastic plas...

This work established the fracture probability equation for JIS SM490A steel using computational model supported by local approach and standard Crack Tip Opening Displacement (CTOD) toughness experiments. As experiments were conducted at a low temperature providing conditions brittle fracture, specimen suffers small plastic deformation until its failure. The tries to represent experiment result...

In this paper, the fatigue and fracture properties of bovine dentin are evaluated using in vitro experimental analyses. Double cantilever beam (DCB) specimens were prepared from bovine maxillary molars and subjected to zeroto-tension cyclic loads. The fatigue crack growth rate was evaluated as a function of the dentin tubule orientation using the Paris law. Wedge-loaded DCB specimens were also ...

The work described here has led to a simple criterion that defines the boundary of small-scale yielding, SSY, regime avoid invalid use LEFM parameter, ?K, as characterising parameter for fatigue crack growth rate. approach proposed is based on analysis tip opening displacement, CTOD, and its separation into elastic plastic components. SSY conditions are shown dominate when component CTOD >75% t...

A plasticity-induced crack-closure model was used to study fatigue crack growth and closure in thin 2024-T3 aluminum alloy under constant-R and constant-Kmax threshold testing procedures. Two methods of calculating crack-opening stresses were compared. One method was based on contact-K analyses and the other on contact crack-openingdisplacement (COD) analyses. These methods gave nearly identica...