fracture assessment of inclined double keyhole notches in

Theoretical and Applied Fracture Mechanics

Fracture assessment of sharp V-notched components under Mode II loading: a comparison among some recent criteria A. Campagnolo F. Berto F. Berto Dominique Leguillon Dominique Leguillon Assessment of root failures in tube-to-flange steel welded joints under torsional loading according to the Peak Stress Method

Isostatic Graphite

Fracture Assessment of Blunt V-Notched Graphite Specimens by Means of the Strain Energy Density As a non-conventional fracture study, brittle fracture of isostatic graphite subjected to compression has been also studied experimentally by means of prismatic specimens weakened by sharp and rounded-tip V-notches

Fracture of Engineering Materials and Structures

Recent advances in the field of fracture of engineering materials and structures have increasingly indicated its multidisciplinary nature. This area of research now involves scientists and engineers who work in materials science, applied mathematics and mechanics

State‐of‐the‐art review on extended stress intensity factor

In a recent paper dealing with brittle failure at inclined keyhole notches (and U‐notches) in graphite specimens, the local strain energy density criterion is used for taking K 1ρ ‐K 2ρ mixed‐mode loading conditions into account. 40 Stress field at blunt V‐notches

A concise review about fracture assessments of brittle

A concise review of recent studies about the fracture assessments of elastic brittle solid materials containing V-notches is presented. In this preliminary and brief survey, elastic stress distributions in V-notched solids are discussed first.

Effect of notch depth and radius on the critical fracture

34. Berto F., Barati E. Fracture assessment of U-notches under three point bending by means of local energy density // Mater. Design. -2011. - V. 32. - P. 822-830. 35. Berto F., Ayatollahi M.R. Fracture assessment of Brazilian disc specimens weakened by blunt

Mechanical Testing

The appearance of a fracture surface gives information about the type of fracture that has occurred - a brittle fracture is bright and crystalline, a ductile fracture is dull and fibrous. Percentage crystallinity is therefore a measure of the amount of brittle fracture, determined by making a judgement of the amount of crystalline or brittle fracture on the surface of the broken specimen.

Scaling effects on notch fracture toughness of graphite

2020/8/1Salavati et al. assessed the fracture of inclined double keyhole notches in isostatic graphite by using the strain energy density (SED) criterion. Torabi et al. [2] investigated the fracture of notched graphite specimens subjected to mixed mode I/II loading by means of the extended finite element method (XFEM) based on the cohesive zone model (CZM).

Effect of notch depth and radius on the critical fracture

34. Berto F., Barati E. Fracture assessment of U-notches under three point bending by means of local energy density // Mater. Design. -2011. - V. 32. - P. 822-830. 35. Berto F., Ayatollahi M.R. Fracture assessment of Brazilian disc specimens weakened by blunt

Fracture of Engineering Materials and Structures

Recent advances in the field of fracture of engineering materials and structures have increasingly indicated its multidisciplinary nature. This area of research now involves scientists and engineers who work in materials science, applied mathematics and mechanics

Problems of Fracture Mechanics and Fatigue: A Solution

Problem 71: Critical Stress in Mixed Mode Fracture.- Problem 72: Critical Stress for an Interface Crack.- Problem 73: Failure of a Pressure Vessel with an Inclined Crack.- Problem 74: Failure of a Cylindrical bar with a Circular Crack.- Problem 75: Failure of a

Induced out‐of‐plane mode at the tip of blunt lateral

Saeed Soltaninezhad, Ataallah Soltani Goharrizi, Hadi Salavati, Ductile Fracture Assessment of High-Density Polyethylene (HDPE-PE100) Weakened by an Inclined Double Keyhole Notch, Theoretical and Applied Fracture Mechanics, 10.1016/j.tafmec.2019

Free Full

Apart from these, the fracture process of triaxially-braided composite for straight-sided coupon specimens also can be simulated by means of the mesoscale FE model [23,24]. However, there is no reported work applying the mesoscale FE model to the analysis of specimens with more complicated shapes, e.g., notched specimen, tube specimen, and specimen with hole.

Isostatic Graphite

Fracture Assessment of Blunt V-Notched Graphite Specimens by Means of the Strain Energy Density As a non-conventional fracture study, brittle fracture of isostatic graphite subjected to compression has been also studied experimentally by means of prismatic specimens weakened by sharp and rounded-tip V-notches

Problems of Fracture Mechanics and Fatigue

On Fracture Mechanics A major objective of engineering design is the determination of the geometry and dimensions of machine or structural elements and the selection of material in such a way that the elements perform their operating function in an efficient, safe

13th International Conference on Fracture(ICF13)

Date of Publication: 2013-06-16 Conference: 13th International Conference on Fracture(ICF13) Conference Date: 2013-06-16 Editorial Board: Please fill in the following form to complete the subscription information. Please provide your real information and it will be

Joint assessment

1 (SUNA) the joint assessment meeting between the Sudan and the United Nations Children's Fund (UNICEF) held in Al-Salam Rotana Hotel Wednesday, recommended the firm coordination between the partners, facilitate the procedure for the implementation of half year 2014 in term of the political commitment, to easly move the resources and implement the joint activities of the UNICEF, the

Fracture Assessment of Inclined Double Keyhole Notches in

In the present contribution, the static strength of isostatic graphite using keyhole notch specimens under mixed mode loading is investigated. An experimental program was performed and in total, 18 new experimental data are provided. In addition, different loading mode ratios are considered by varying the inclination angle of the notch with respect to the direction of the applied load. The

13th International Conference on Fracture(ICF13)

Date of Publication: 2013-06-16 Conference: 13th International Conference on Fracture(ICF13) Conference Date: 2013-06-16 Editorial Board: Please fill in the following form to complete the subscription information. Please provide your real information and it will be

Local approaches applied to fracture and fatigue

Intentionally designed or accidentally caused, notches, cracks or defects are inevitably present in engineering components and can induce high stress gradients when a far field loading is applied. Then, structural strength assessments are often based on the local

Fracture Study on Key

Notch fracture toughness expressions were developed for predicting tensile fracture in members containing key-hole notches based on the point stress and the mean stress criteria. The criteria were verified by using the experimental results obtained from new fracture tests on the key-hole notched Brazilian disk specimens, made of PMMA.

Joint assessment

1 (SUNA) the joint assessment meeting between the Sudan and the United Nations Children's Fund (UNICEF) held in Al-Salam Rotana Hotel Wednesday, recommended the firm coordination between the partners, facilitate the procedure for the implementation of half year 2014 in term of the political commitment, to easly move the resources and implement the joint activities of the UNICEF, the

A review on coupled modes in V

A recent approach, the strain energy density approach, to fracture assessment of notched components is based on the evaluation of the averaged strain energy density over a control volume. It allows a direct comparison of the strength or failure load of notches with different notch opening angles overcoming the problem of combining the intensity of single and different fracture modes into a

Peterson's Stress Concentration Factors, 4th Edition

2 Notches and Grooves 89 2.1 Notation 89 2.2 Stress Concentration Factors 90 2.3 Notches in Tension 92 2.3.1 Opposite Deep Hyperbolic Notches in an Infinite Thin Element; Shallow Elliptical, Semicircular, U-Shaped, or Keyhole-Shaped Notches in Semi

Fracture of Engineering Materials and Structures

Recent advances in the field of fracture of engineering materials and structures have increasingly indicated its multidisciplinary nature. This area of research now involves scientists and engineers who work in materials science, applied mathematics and mechanics

Fracture Toughness and Weld Defects: Solidification

Some concern has been expressed that the fracture toughness of natural weld defects may be lower than that measured using standard test specimens containing fatigue sharpened notches. This report describes an experimental study which was conducted to compare the fracture toughness of weld solidification cracks with standard fatigue cracked specimens.

Brittle fracture in key

2015/1/1Beside the fracture toughness, the other important parameter in fracture investigation of key-hole notches is the prediction of the fracture initiation angle under mixed mode loading. This importance is due to the fact that the point of crack nucleation on the notch border and the direction of crack growth specify the overall damage to the notched structure.

Table of Contents: Problems of fracture mechanics and

Problem 71. Critical Stress in Mixed Mode Fracture / L. Banks-Sills Problem 72. Critical Stress for an Interface Crack / L. Banks-Sills Problem 73. Failure of a Pressure Vessel with an Inclined Crack / E. E. Gdoutos Problem 74. Failure of a Cylindrical bar with a

Experimental and theoretical investigation of brittle

2015/2/26The Brazilian disk specimen weakened by a central dumbbell-shaped slit with two key-shaped ends and made of PMMA is employed to perform mixed mode I/II brittle fracture experiments on key-hole notches for various notch lengths and radii and, also, different mode mixity ratios. The load-carrying capacity of the specimen resulting from the test machine at the onset of sudden fracture is

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