Deep rock engineering (e.g., the exploitation of the deep resources and energy) is inevitably involved in the assessment of the stability of deep rocks, which are generally subjected to a complex geological environment with high in-situ stress …
Ultra-high molecular weight polyethylene (UHMWPE) composites are fiber based polymer composites which have grown in popularity as bullet and fragment mitigating armor packages [ 1 – 6 ]. While there has been some experimentation conducted to …
Composite pressure vessels are seeing increasing demand in the oil and gas sector due to their excellent corrosion resistance. However, the assessment of the fatigue state of those structures still an open question. The goal of this work is use …
verfasst von:
M.V.L. Pazini, L. de Abreu Corrêa, H. Haan, G. Zanon, T.G.R. Clarke
Measuring the motion of a structure including the static deformation and/or the displacement/acceleration responses etc is a prerequisite for structural control and health monitoring. Traditionally, contact transducers including the linear …
Fatigue is a pervasive issue that affects many industries, including aerospace, automotive, nuclear healthcare, and others [ 1 , 2 ]. Structures, particularly those bearing loads, frequently fail due to fatigue [ 3 , 4 ]. To enhance the service …
verfasst von:
V. Okenyi, S. Afazov, N. Mansfield, P. Siegkas, A. Serjouei, M. Bodaghi
Mechanical elastic parameters are fundamental to the analysis and study of material behavior. While compressive parameters are straightforward to measure via uniaxial compression tests, obtaining tensile parameters presents more of a challenge …
Nearly all mechanical components are subjected to interacting stress fields during service which deteriorate their performance and design life. These interactions could occur between cracks or cracks with nearby discontinuities such as holes …
Shear slip of rock joint is one of the significant factors leading to instability of engineering rock masses [ 1 , 2 ]. Laboratory reproduction of the shear-slip process of rock joint can help to reveal the destabilization mechanism of jointed rock …
Air plasma-sprayed (APS) thermal barrier coatings (TBC) have been widely used in gas turbine engines owing to their exceptional thermal insulation properties and resistance to corrosion [ 1 , 2 ]. Typically, APS TBC comprises multiple layers …
Multiaxial dynamic test development is a crucial issue because such loading situations occur in common industrial cases such as automotive impacts [ 1 ] and high-speed forming or machining [ 2 , 3 ]. Unfortunately, the very reliable Hopkinson bar …
verfasst von:
P. Quillery, B. Durand, M. Huang, K. Seck, H. Zhao
The thermodynamic limitation on solid-solutioning to go beyond the strength-ductility trade-off and continuous demands for multi-functional requirements from a structural material have led to the development of the composites of dissimilar …
Reinforced-concrete (RC) structures represent a significant proportion of both conventional and industrial buildings. One of the main issues with these structures is their mechanical integrity, specifically to know whether the structure can …
Digital image correlation (DIC) has become the standard technique for measuring strain fields in industry and academia. The method has no innate length scale, and its microscopy applications (micro-DIC) have also been predominant among micro-scale …
Auxetic foams are unique cellular structures with a negative Poissons’ ratio, enabling lateral contraction of material upon compressive loading. This extraordinary material behavior results in enhanced indentation resistance [ 1 ], improved …
An unruptured intracranial aneurysm (UIA) is a structural deformation of the cerebral artery wall that affects 2–5 % of the global population, with an annual risk of rupture ranging from 0.8 to 4 % [ 1 , 2 ]. Subarachnoid haemorrhage resulting from …
verfasst von:
J. Raviol, G. Plet, H. Magoariec, C. Pailler-Mattei
Advances in imaging technology over the last few decades have provided a significant opportunity for in-depth investigation of numerous engineering-based challenges. Among others, X-ray computed tomography (XCT) is becoming a conventional imaging …
verfasst von:
C. Paraskevoulakos, S. Ghosh, T. Andriollo, A. Michel
In the last two decades, significant progress has been made on developing new nanoscale mechanical property measurement techniques including instrumented indentation and atomic force microscopy based techniques. The changes in the tip-sample …