How to crack BARC exam mechanical?
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| Papers (10) | Insight |
|---|---|
125 Citations | The main novel aspect of this work is that neither crack geometries nor crack sizes need to be measured post test. |
15 Citations | The yielding of the crack front could ease the stress concentration at the crack front. |
15 Citations | Also, this model for the crack spacing can be utilized to predict the value of crack width for various loading stages. |
| The results obtained from the crack propagation examinations show that the crack angle has an important effect on the crack initiation angle. | |
18 Citations | The case studies show how the crack initiation angle can be reasonably estimated with this methodology and how this approach provides realistic values of fracture toughness KIC and fracture energy Gf. |
19 Citations | Application of the method to a specimen with a real fatigue crack shows a systematical error possibly due to the inclined crack profile. |
15 Citations | The results showed that the flaw inclination angle affected the mechanical properties of the specimen as well as the initiation and propagation of the first crack. |
| It was demonstrated that: (i) LEFM concepts are applicable to the problem under study; (ii) the crack closure phenomenon has a great influence on crack tip parameters decreasing their values; (iii) the Δ K eff concept is able to explain the variations of crack tip parameters produced by the contact of crack flanks; and (iv) the analysis of remote compliance is the best numerical parameter to quantify the crack opening level. | |
18 Citations | The developed procedures simplify the analysis of the description of mechanical fields at a greater distance from the crack tip considerably. |
16 Citations | The authors identify high applied stress levels in combination with potential multiple crack initiation as the probable root of the problem and propose a scheme how the model can be extended for taking into account crack initiation. |
Related Questions
What is mechanical test?3 answersMechanical testing is a process used to evaluate the properties and behavior of materials under various conditions. It involves subjecting a material to external forces or loads to measure its response and determine its mechanical characteristics. The testing is regulated by standards that specify requirements for samples, equipment, testing conditions, and result analysis. Mechanical testing can be applied in various fields, including biomechanics, where it is used to assess the mechanical properties of bone, evaluate fracture fixation procedures, and test implants and biomaterials for clinical purposes. It can also be used in electrical construction to quantitatively test the connecting strength of components. Additionally, mechanical testing instruments have been developed for soil and structure surfaces to measure deformations and stresses on interfaces. Overall, mechanical testing plays a crucial role in understanding the behavior and performance of materials in different applications.
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