WE thank Mecholsky et al. 1 for their intense interest in our paper and their appreciation of the great importance and novelty of our results. We are also grateful for this opportunity to place our findings in a more comprehensive context to better discuss their comments. Orr is normally credited with developing the now commonly used equation relating the strength of brittle materials to the mi...

The SEM is especially useful when combined with Energy Dispersive X-ray spectroscopy (EDX), which can be performed in the microscope, enabling very small areas of the sample to be analyzed for their elemental composition. One disadvantage of the SEM approach is related to its high resolution. Only a very small area can be analyzed and the fracture pattern can rapidly become very complex to inte...

Most times in our life we use products with little understanding of how and why the packaging was selected. We usually don’t think about the design specifications of the container and its crucial role in delivering the contents safely. It is only when a problem occurs that we dig deeper into the selection criteria and science that were used to specify the packaging system. In the pharmaceutical...

The present work demonstrates a micromechanical technique to investigate the low cycle fatigue (LCF) behavior of Ni microbeams under fully reversed bending loadings. extends range measured lives from previously reported for high and very (HCF/VHCF) characterization in same microbeams. results highlight significant differences slope stress strain-life crack propagation rates that differ an avera...

The shaft is a critical component in ESP. In many cases, dismantle analyses cannot identify definitive root cause for failure. Several hypotheses have been studied to explain This paper will review typical failure modes; more specifically, the power source and consequence of be discussed. An analysis premature used an electrical submersible pump (ESP) lifting oil has carried out. During root-ca...

There is an increasing need to assess the service life of components containing defect which operate at high temperature. This paper describes the current fracture mechanics concepts that are employed to predict cracking of engineering materials at high temperatures under static and cyclic loading. The relationship between these concepts and those of high temperature life assessment methods is ...