...Jingyao Dai; Jogender Singh; Namiko Yamamoto Because of the advantage of simple preparation of small-sized samples, micro-indentation has been widely adapted to evaluate the fracture toughness of materials including brittle ceramic composites. However, fracture toughness results measured by micro...

...Tristan Yount; William Collins; Sebastian Lindqvist; Kim Wallin The master curve methodology is used to define the scatter and temperature dependence of ferritic steel fracture toughness in the ductile-to-brittle transition region, described by a single parameter, the reference temperature, T o...

... of this study is to verify the effectiveness of the Master Curve methodology in providing a reliable estimate of the reference temperature ( T 0 ) derived from fracture toughness data sets measured in the ductile-to-brittle transition (DBT) region of an ultrahigh strength, low alloy martensitic steel. Fracture...

...L. Sirkiä; J. Kuutti; I. Virkkunen This paper focuses on the quality criteria for miniature compact tension (C(T)) specimens. The continuously diminishing volume of reference materials for fracture toughness surveillance testing encourages research on the usability of miniature-sized test specimens...

... mixtures at 0°C and 25°C. A total of 28 asphalt mixtures, including 27 AR-Gap mixtures and 1 conventional dense-graded (DG) mix, covering over 220 data points were utilized for evaluation. The outcome parameter, fracture toughness, K IC , calculated from the SCB test was used to compare and contrast...

...Milad Mohamadzadeh; Daniel Hindman Currently, there is no standard test methodology for the evaluation of Mode II fracture toughness, G II , for wood and wood composite materials. This article measured the Mode II fracture toughness of solid wood, laminated veneer lumber (LVL), and oriented strand...

... contributions of (1) relevant sources of uncertainty namely, caliper, tolerance of specimen dimensions, load cell and displacement sensor, and (2) individual parameters like load, specimen dimensions, and material constants included in the formulae, towards the uncertainty in fracture toughness measures...

...J. Schuurmans; M. Scibetta The evolution in the ASTM standards toward more stringent precracking requirements and the large amount of fracture-toughness tests annually performed at SCK•CEN, were the motivations to search for novel techniques to gain more control over the precracking process...

... in close agreement with the few data provided by the manufacturer ( E and σ f ), while fracture data was also provided with a good agreement between data reduction schemes. 10 08 2015 01 12 2015 02 02 2016 structural adhesive ductility fracture toughness bulk thick adherend shear...

...Kaikai Shi; Lixun Cai; Yunming Hu; David Salmon; Chen Bao Fracture toughness of ductile materials is often characterized by J resistance curves. It is generally required to adopt load line crack mouth opening displacement (CMOD) records in load line compact tension (LLCT) specimens to calculate...

... ). In this work, an experimental procedure is undertaken to evaluate the effect of low temperatures on the adhesive strength and mode I fracture toughness of a room temperature vulcanizing silicone (RTV) adhesive. Firstly, the temperature at which the glass transition of the RTV occurs was obtained by means...

... fracture toughness (critical energy release rate obtained using the fracture load) was discussed in detail. To the author's knowledge, this work is the first attempt to study the effect of magnetic fields on the fracture behavior of giant magnetostrictive materials. 12 05 2014 21 05 2015 25...

...H. K. Khandelwal; R. N. Singh; J. K. Chakravartty In the present work, fracture-toughness parameters of Zr-2.5Nb alloy were evaluated as per ASTM E1820 and ISO 12135 standards at 25°C and 300°C. To investigate the influence of the material's microstructure on deviation in fracture-toughness values...

... , American Concrete Institute , Farmington Hills, MI , 1987 , pp. l – 25 . ultra-high-performance concrete fracture toughness critical stress-intensity factor fracture energy 25 11 2011 30 11 2012 28 03 2013 This paper has been modified from the original to correct...

...Rogelio Hernández; Jesús Romero; Salvador Vázquez; Manuel Santillán; Marc Scibetta The National Institute for Nuclear Research in Mexico participated in the international research project “Master Curve Approach to Monitor the Fracture Toughness of Reactor Pressure Vessel in Nuclear Power Plants...

... in the existing LLD-based J -integral analysis. Using fracture toughness test data for SE(B) specimens, detailed comparisons and discussions are made between the proposed method and the ASTM E1820 CMOD methods in determination of J-R curves for HY80 steels. As the basis of comparison, the “accurate” solutions...

...Ryan J. Melcher Fracture toughness, in the sense of material resistance to ductile tearing from an initial sharp defect, is a common metric for structural integrity assessments of engineering components. While standardized test methods are well-suited for repeatable estimation of this metric...

... and fracture toughness of sandstone are obvious. And, it is found that a critical transforming temperature is about 150°C for the fracture toughness of sandstone. That is, the fracture toughness value is to increase exponentially when the range of the temperature is from 25 to 150°C, but decreases...

..., however, have better repeatability compared to the DT results. The use of DENT test results to determine the critical cracking temperature in M 320-05 (former MP1a) AASHTO specification is discussed. 02 06 2006 24 10 2006 10 11 2006 asphalt binder fracture test fracture toughness...

...J Džugan; H-W Viehrig The paper deals with the determination of crack initiation for three-point-bend specimens during fracture toughness testing of materials in the upper transition and upper shelf region. In the presented study various published methods such as the Double Clip Gage Method...