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Relevant bibliographies by topics / Mechanical erosion

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Academic literature on the topic 'Mechanical erosion'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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Journal articles on the topic "Mechanical erosion"

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Du, Jun, Ping Zhang, Xiao Ying Zhu, and Zhi Hai Cai. "The Microstructure and Mechanical Properties of ZrAlN/Cu Coating." Advanced Materials Research 284-286 (July 2011): 884–88. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.884.

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ZrAlN/Cu coating has been deposited onto Ti-6Al-4V substrates by reactive magnetron sputtering. The morphology of films was investigated by FESEM, the microstructure was studied by XRD, XPS and TEM. The plastic deformation characteristic of thin films were analysised from loading/unloading curves measured by nano-indentation method. Erosion tests were conducted to evaluate anti-erosion ability. Erosion rates were measured and characteristic damage features were identified on the surface of eroded specimens. The mechanisms of erosion are discussed in order to explain the promising performance of materials in erosive conditions. It was found that there is an significant increase of erosion resistance because of the increase of hardness and toughness.

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Levy, C., M. Perl, and Q. Ma. "The Influence of Finite Three-Dimensional Multiple Axial Erosions on the Fatigue Life of Partially Autofrettaged Pressurized Cylinders." Journal of Pressure Vessel Technology 125, no. 4 (November 1, 2003): 379–84. http://dx.doi.org/10.1115/1.1616582.

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Erosion geometry effects on the mode I stress intensity factor (SIF) for a crack emanating from the farthest erosion’s deepest point in a multiply, finite-length or full-length eroded, partially autofrettaged, pressurized, thick-walled cylinder is investigated. The problem is solved via the FEM method. Autofrettage, based on von Mises’ yield criterion, is simulated by thermal loading and SIFs are determined by the nodal displacement method. SIFs were evaluated for a variety of relative crack depths, a/t=0.01-0.30 and crack ellipticities, a/c=0.5-1.5 emanating from the tip of the erosion of various geometries, namely, (a) semi-circular erosions of relative depths of 1–10% of the cylinder’s wall thickness, t; (b) arc erosions for several dimensionless radii of curvature, r′/t=0.05-0.3; and (c) semi-elliptical erosions with ellipticities of d/h=0.5-1.5. In the cases of finite erosions, the semi-erosion length to the semi-crack length, Le/c, was between two and ten, erosion angular spacing, α, was between 7 and 120 degrees, whereas percent autofrettage investigated included 30%, 60%, and 100%. The normalized SIFs and the normalized effective SIFs of a crack emanating from the farthest finite erosion are found to rise sharply for values of Le/c<3. Both the normalized SIF and normalized effective SIF values are mitigated as the amount of partial autofrettage increases with the most rapid decrease occurring between 0–60% autofrettage. The purpose of this study is to detail these findings.

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MUIR WOOD, D., K. MAEDA, and E. NUKUDANI. "Modelling mechanical consequences of erosion." Géotechnique 60, no. 6 (June 2010): 447–57. http://dx.doi.org/10.1680/geot.2010.60.6.447.

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Siewert, Jens, and Carmelo Ferlito. "Mechanical erosion by flowing lava." Contemporary Physics 49, no. 1 (January 2008): 43–54. http://dx.doi.org/10.1080/00107510802077388.

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Perl, M., C. Levy, and H. Fang. "Cracks Emanating From an Erosion in a Pressurized Autofrettaged Thick-Walled Cylinder—Part II: Erosion Depth and Ellipticity Effects." Journal of Pressure Vessel Technology 120, no. 4 (November 1, 1998): 354–58. http://dx.doi.org/10.1115/1.2842343.

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In Part I of this paper, the effects of constant depth erosion on the mode I stress intensity factor (SIF) were determined for a crack emanating from the erosion deepest point in a pressurized, autofrettaged, thick-walled cylinder. The erosion geometries investigated included semi-circular erosions and several arc erosions of various radii of curvature. Due to the trends found in that portion of the study, erosion depth and ellipticity are believed to have equally important impact on the SIFs. The present paper delves further into these two parameters using the following configurations: (a) semi-circular erosions of relative depths of 1–10 percent of the cylinder’s wall thickness, W; and (b) semi-elliptical erosions with ellipticities of d/h = 0.3 – 2.0. Deep cracks are found to be practically unaffected by the erosion, similar to the results presented in Part I of the paper. The effective SIF for relatively short cracks is found to be dramatically enhanced by the stress concentration factor (SCF), which encompasses the depth of the erosion as well as its radius of curvature at the tip. As a result of the increased effective SIF, a significant decrease in the vessel’s fatigue life of up to an order of magnitude may occur.

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Levy, C., M. Perl, and Q. Ma. "Erosions and Their Effect on the Fatigue Life of Thick Walled, Autofrettaged, Pressurized Vessels." Journal of Pressure Vessel Technology 125, no. 3 (August 1, 2003): 242–47. http://dx.doi.org/10.1115/1.1593698.

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This paper summarizes the results that have been found in evaluating the effect of erosions on thick walled, autofrettaged, pressurized, cracked vessels. The problem is solved numerically via the FEM method. Autofrettage, based on von Mises yield criterion, is simulated by thermal loading and stress intensity factors (SIF’s) are determined by the nodal displacement method. SIF’s were evaluated for a variety of relative crack depths a/t and crack ellipticities a/c emanating from the tip of the erosion of various geometries, namely, (a) semi-circular erosions of small relative depths of the cylinder’s wall thickness t; (b) arc erosions for several dimensionless radii of curvature r′/t; and (c) semi-elliptical erosions with ellipticities of d/h. Other parameters evaluated were, in the cases of finite erosions, the semi-erosion length to the semicrack length Le/c, the erosion angular spacing α, and the autofrettage level. First, we summarize the differences found between a vessel with one erosion and one with multiple erosions. We show that for full cylinder length erosions, the erosions tend to make smaller cracks more dangerous than larger cracks in fully autofrettaged vessels and that as the crack grows the stress intensity factor initially decreases. We then show that as the crack grows further, the effect is to increase the effective stress intensity factor (SIF) but also to practically void the existence of the erosion. We show further that lower levels of autofrettage will lead to higher effective SIF’s but that partially eroded cylinders (cylinders where erosions are a fraction of the cylinder length) lead to lower SIF’s. Affecting these values in all cases, of course, are the erosion geometry and depth as well as the crack geometry and depth.

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Sharma, Rohit, Ashish Mehrotra, Vinit K. Sharma, Zafar Iqbal, and Kunal Nigam. "A Retrospective Study of Bony Erosion Patterns in Cases of Fungal Rhinosinusitis." An International Journal Clinical Rhinology 9, no. 2 (2016): 62–64. http://dx.doi.org/10.5005/jp-journals-10013-1269.

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ABSTRACT Erosion of bone with or without extension of disease into adjacent anatomic spaces is observed among some patients with fungal rhinosinusitis (FRS). Preoperative computed tomographies is very important to determine the sites of bony erosion. Patients with bony erosions are classified based on the involved subsite and the extent of erosion. Bony erosions was seen in 37.5% cases. Six patients were having bone erosions on CT scan. 40 % erosions were present in patients belonging to younger age group. Erosion of sinus boundaries were more common in male patients (60%). The ethmoid sinus complex was most commonly involved (46.6%). This was followed in frequency of involvement by the maxillary sinus (26.6%), the sphenoid sinus (20%) and the frontal sinus (6.6%). The most common site of erosion was the lamina papyracea (33.3%), followed by the medial maxillary wall (20%). Bony erosions due to FRS were mainly due to long-term mechanical compression by the fungal mass. A case of chronic rhinosinusitis with bony erosions in CT scan may indicate a fungal etiology. How to cite this article Sharma VK, Sharma R, Mehrotra A, Iqbal Z, Nigam K. A Retrospective Study of Bony Erosion Patterns in Cases of Fungal Rhinosinusitis. Clin Rhinol An Int J 2016;9(2):62-64.

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KRUPICZ, Bazyli, Mariusz LISZEWSKI, and Wojciech TARASIUK. "MECHANICAL PROPERTIES OF MATERIALS AND THEIR EROSIVE WEAR." Tribologia 269, no. 5 (October 31, 2016): 85–94. http://dx.doi.org/10.5604/01.3001.0010.6602.

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In this paper, the authors analyse the impact of selected mechanical properties of materials on their erosive wear caused by a steady stream of solid particles. A wear process is a function of the material properties of two materials that interact with each other in a given environment, i.e. the construction material and the particles that cause erosion. Erosive losses occur upon reaching a critical condition of damaging an element of the material’s surface under the influence of kinetic energy that result from incident particles of an abrasive material. It is proposed that the critical condition that accompanies the formation of erosion losses should be represented by the toughness (U) and the specific work of the deformation of the sample in the tensile strength test (W). The study involved the following materials: NC6, 42CrMo4, 20MnCr5, and S235JR.

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Duan, Long Chen, Anne Neville, and Yu Yan. "Experimental Research on Erosion and Corrosion of WC-Base Matrix Materials for Drill Bits under Impingement of Drilling Muds." Key Engineering Materials 359-360 (November 2007): 171–75. http://dx.doi.org/10.4028/www.scientific.net/kem.359-360.171.

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In oil drilling the failures of PDC drill bits are exhibited as erosive wear, dropping and breaking of cutters, so the erosion and corrosion resistance of the matrix is one of the key factors affecting the quality of PDC bits. In order to understand the degradation mechanism of matrix materials for drill bits, a kind of loop recirculation rig is adopted to measure total mass loss TML, mass loss E by pure mechanical erosion, and then through calculation the mass loss C+S by corrosion and synergy is obtained. The tested and calculated results show that TML of matrix materials is not only caused by pure mechanical erosion, but also by corrosion and their synergy of mechanical erosion and corrosion. In the discussed scope of this paper the volume loss produced by corrosion and synergy is 24.16% of the total volume loss (TVL) at most, which tells us that the corrosion resistance of matrix materials should be considered carefully besides their erosive resistance in the design and selection of PDC drill bits used in the corrosive drilling muds.

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Ke, Lin, and Akihiro Takahashi. "Triaxial Erosion Test for Evaluation of Mechanical Consequences of Internal Erosion." Geotechnical Testing Journal 37, no. 2 (January 20, 2014): 20130049. http://dx.doi.org/10.1520/gtj20130049.

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Dissertations / Theses on the topic "Mechanical erosion"

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Welch, Eric J. (Eric Jack). "Quantitative prediction of high-speed erosion." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14528.

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Vassiliou, George E. "The erosion-corrosion behaviour of copper-nickel alloys." Thesis, University of Glasgow, 2001. http://theses.gla.ac.uk/2458/.

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The research focuses on an investigation of the erosion-corrosion behaviour of Cu-Ni-base alloys in aqueous environments. The principal objectives of the research were to examine the fundamental mechanisms of the erosion-corrosion attack. The work was focused on a standard Cu-10%Ni alloy that is used extensively in a variety of marine industries and on Marinel alloy, which is a high strength precipitation-hardened copper-nickel alloy. Erosion-corrosion tests were carried out for exposure times up to 72 hours, in a solid free 3.5% NaCl solution impinging at velocities of 2.38-86 m/sec, (Re=4500-86000), at temperatures of 19°C and 35°C. The overall erosion-corrosion behaviour and the direct corrosion component were monitored using gravimetric and electrochemical-monitoring techniques. Contributes from mechanical erosions were assessed by cathodically protecting specimens under impingement conditions. The research also considered the influence of various parameters such as temperature, time, velocity, salinity variations, and impingement angle. The extent and morphology of material deterioration and protective film formation under various environmental conditions were assessed, utilizing surface profiling equipment and light optical and scanning electron microscopy. The work has quantified the complex contributions of corrosion, erosion and synergy to the overall erosion-corrosion material loss. An important finding was the substantial superior erosion-corrosion resistance of Marinel compared to the standard Cu-10%Ni, with interesting effects of impinging velocity and time of exposure being observed. Also this work provided some clear evidence of significant potential benefits in terms of erosion-corrosion resistance, obtained by the exposure of Marinel at the elevated temperature.

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Perry, Joan M. "Erosion-corrosion of WC-Co-Cr cermet coatings." Thesis, University of Glasgow, 2001. http://theses.gla.ac.uk/2845/.

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The erosion-corrosion characteristics of a WC-Co-Cr coating were assessed under an impinging jet of 3.5% NaCl solution at a velocity of 12 ms-1 both free from solids and containing solids up to 2500 mg/l at a range of impingement angles. The total weight loss increased with increasing solids in the liquid stream and maximum material loss occurred in the area directly under the jet where high impact angles occurred. The material loss tended to reduce as the impingement angle reduced. The mechanism and contribution to the overall material loss in erosions-corrosion processes were studied. Surface profiling revealed the erosions mechanism to be that of solid particles causing craters on the surface of the coating, not associated with any specific microstructural aspect of the coating. The total contribution to overall material loss from corrosion processes was substantial (up to 30%). While the impinging jet increased the corrosion rate, in the absence and presence of solids, these corrosive effects could be inhibited, particularly in the presence of solids, by the application of cathodic protection which reduced overall material loss by up to 50%. The synergistic component of material loss can be referred to as an indirect corrosion effect, and in this work, the synergistic effect was significant (up to 40%). However, more complex direct corrosion effects were found in the form of galvanic currents between the area directly under the impinging jet and the outer area which significantly increase the corrosion rate on the impinged area. This study, which focuses on the interactions between corrosion and erosion, has improved the understanding of erosion-corrosion processes on complex composite materials.

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Noh, Kyungyoon. "Modeling of dielectric erosion and copper dishing in copper chemical-mechanical polishing." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32393.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.
Includes bibliographical references.
The phenomenal success in the manufacture of multi-layer, Ultra-Large-Scale-Integrated (ULSI) semiconductor devices is in part due to the local and global planarization capabilities of the chemical-mechanical polishing (CMP) process. At present, copper is widely used as the interconnect material in the ULSI technology. The greatest challenge in Cu CMP now is the control of wafer surface non-uniformity-primarily due to dielectric erosion and copper dishing at various scales--to within the ever stringent industry specifications. In this thesis, an integrated non-uniformity model is developed by combining wafer-, die- and feature-scale non-uniformities. A feature-scale pressure calculation scheme based on surface step-height is adopted, and the evolution of the surface in each polishing stage is modeled in terms of geometric, material and process parameters. Various pad/wafer contact mechanics regimes have been considered to model oxide erosion and Cu dishing, from submicron device level to the global wiring level. The plausible causes of erosion and dishing at wafer-, die- and feature-scales were identified and integrated into the feature-scale step-height models. Such parameters include: initial pattern geometry, wafer-scale uniformity, and Cu-to-oxide slurry selectivity, material properties, and surface topography of the pad. Based on the developed erosion and dishing models, the effects of model parameters on the wafer-surface non-uniformity in Cu CMP are discussed, and parameter sets to satisfy both dishing and erosion specifications are obtained.
(cont.) In single-step polishing, for example, the Cu deposition factor should be less than 0.1 and the wafer-scale uniformity factor needs to be greater than 0.95 to maintain both erosion and dishing within 5% of interconnect thickness across the wafer if the polishing slurry has a selectivity of 15. Results of polishing experiments on 100 mm patterned Cu wafers validated both the step- height models and the integrated non-uniformity model. Based on the present models, erosion and dishing across the wafer was bounded by predefined parameters. Additionally, as predicted by the models, it was observed that the step-heights of the slowest and the fastest dies evolve in the ratio of the wafer-scale uniformity factor.
by Kyungyoon Noh.
Ph.D.

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Hufnagel, Max [Verfasser]. "Nondimensional Erosion Model Considering Aerodynamic and Mechanical Particle Size Effects / Max Hufnagel." München : Verlag Dr. Hut, 2020. http://d-nb.info/1219321648/34.

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Reyes, de Villarreal Myrna Elia. "Examining mechanical and electrochemical degradation mechanisms on materials used in subsea drilling." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/499.

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Li, Tianyu. "Synthesis and Characterization of Photoresponsive Polyesters for Improved Mechanical Properties and Erosion Properties." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460381096.

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Whaley, Erica Lee. "The Interaction Between Cavitation and Wear in Enclosed Spaces with Oscillating Boundaries." Miami University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1558435589443526.

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Moraes, Graziela Meneghel de. "Características hidrogeoquímicas das bacias de drenagem dos rios Capivari e Jundiaí, SP: aspectos das influências antrópicas." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-23032016-102438/.

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Os rios Jundiaí e Capivari são importantes efluentes do rio Tietê, e estão localizados em regiões que possuem municípios de grande potencial sócio/econômico, para o estado se São Paulo, por esse motivo estão sobre constantes pressões antrópicas causando deteriorização de suas águas, que são usadas para abastecimento humano. O presente estudo teve por objetivo realizar o levantamento das características hidrogeoquímicas das bacias de drenagem dos rios Jundiaí e Capivari, buscando caracterizar os aspectos das influências antrópicas nas cargas dissolvidas e particuladas transportadas fluvialmente nas referidas bacias de drenagem. Para tal foram determinadas quatro estações de amostragem, JUN0 e JUN1 para o rio Jundiaí, e CAP0 e CAP1 para o rio Capivari, sendo coletadas amostras fluviais no período de abril de 2011 a dezembro de 2012, distribuídas em 15 excursões. Os estudos das dinâmicas das cargas fluviais particuladas, representadas pelos sedimentos finos em suspensão (FSS), evidenciaram para ambos os rios, a influência da sazonalidade, com significativo transporte de sedimentos, principalmente nos períodos chuvosos. O rio Jundiaí apresentou uma erosão média e o rio Capivari uma erosão considerada alta. As relações estabelecidas entre os COP (carbono orgânico particulado), NOP (nitrogênio orgânico particulado), COD (carbono orgânico dissolvido), NOD (nitrogênio orgânico dissolvido) e respectivas assinaturas isotópicas (?13C e ?15N) para os rios Jundiaí e Capivari, revelaram que a origem da matéria orgânica esteve associada ao material erosivo (solos da bacia) nos períodos chuvosos e aos efluentes domésticos no período de estiagem. A caracterização hidroquímica fluvial revelou que para a maioria das espécies químicas presentes na carga dissolvida dos rios Jundiaí e Capivari sofreram os processos de diluição em consonância com o aumento da vazão. Quando comparadas às respectivas curvas de diluição teórica, as curvas dos íons Na+ e Cl-, se mostraram oriundos de uma única fonte ou origem de entrada nas bacias, nas regiões de foz, relativas ao lançamento de esgotos domésticos. O modelo geoquímico conceitual simples de alteração química de rochas permitiu de modo satisfatório avaliar a alteração de rochas dos rios Jundiaí e Capivari, evidenciando a contribuição dos aportes antrópicos na química das águas dos rios estudados
The Jundiaí and Capivari River are important Tietê river tributaries, and are located in regions with potential social/economic cities of São Paulo state, for this reason they are on influence of countless water impacts that is used for human supply. This study has the main objective survey the hidrogeochemical characteristic of the Capivari and Jundiaí rivers basins drainage, looking for describing anthropogenic influence in dissolved and suspended sediment transported in the basins. Four local were determined, JUN0 and JUN1 for Jundiaí river, and CAP0 and CAP1 for Capivari river where fluvial water samples were collected from April of 2011 to December of 2012, divided in 15 sampling. The suspended sediments dynamics studies, represented by the fine sediments in suspension (FSS), proved for both rivers the seasonality influence with expressive suspended sediment transport mainly during rainy periods. Jundiaí river showed medium erosion and Capivari river a considered high erosion. The relation established among COP (particulate organic carbon), NOP (particulate organic nitrogen), COD (dissolved organic carbon), NOD (dissolved organic nitrogen) and isotopic signature (?13C e ?15N) for Jundiaí and Capivari rivers indicated that the organic matter has been associated with erosive materials (basins soils) during rainy periods and sewage during dry season. The fluvial hydrochemical characterization appeared that for the majority of chemical species presents are dissolved in the Jundiaí and Capivari rivers where the dilution happened according to the water flow increase. Comparing with corresponding theoretical dilution curves, both Na and Cl ions curves have shown to be from a single or input source in the mount basins for the sewage release. The geochemical simple model of chemical of rocks allowed consider Jundiaí and Capivari rocks alteration showing the anthropic rivers water influence

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Shrestha, Suman Kumar. "Corrosion and erosion-corrosion of High Velocity Oxy-Fuel (HVOF) sprayed NiCrSiB coatings." Thesis, University of Glasgow, 2000. http://theses.gla.ac.uk/2866/.

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Books on the topic "Mechanical erosion"

1

Raask, Erich. Erosion wear in coal utilization. Washington [D.C.]: Hemisphere Pub. Corp., 1988.

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Burnett, Anthony John. The use of laboratory erosion tests for the prediction of wear in pnuematic conveyor bends. Boston Spa, West Yorkshire: British Thesis Service, 1996.

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Budinski, Kenneth G. MNL 56 guide to friction, wear and erosion testing. West Conshohocken, PA: ASTM International, 2007.

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MNL 56 guide to friction, wear and erosion testing. West Conshohocken, PA: ASTM International, 2007.

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O'Flynn, Damian John. The influence of the mechanical properties of heat treated carbon steels on their solid particle erosion behaviour. Boston Spa, West Yorkshire: British Thesis Service, 1998.

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Riley, S. J. Investigation of the erosional stability of waste rock dumps under simulated rainfall: A proposal. Canberra: Australian Govt. Pub. Service, 1990.

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A, Arndt Roger E., Billet M. L, Blake William K, American Society of Mechanical Engineers. Winter Meeting, and American Society of Mechanical Engineers. Multiphase Flow Committee., eds. International Symposium on Cavitation Noise and Erosion in Fluid Systems, 1989: Presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, San Francisco, December 10-15, 1989. New York, N.Y: The Society, 1989.

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International Symposium on Cavitation Inception (1989 San Francisco, Calif.). International Symposium on Cavitation Inception, 1989: Presented at the winter annual meeting of the American Society of Mechanical Engineers, San Francisco, California, December 10-15, 1989. New York, N.Y: ASME, 1989.

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Lansdown, A. R. Materials to resist wear. Oxford [Oxfordshire]: Pergamon Press, 1986.

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Gray, Donald H. Biotechnical slope protection and erosion control. Malabar, Fla: R.E. Krieger Pub. Co., 1989.

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Book chapters on the topic "Mechanical erosion"

1

Basu, Prabir, Cen Kefa, and Louis Jestin. "Erosion Prevention in Boilers." In Mechanical Engineering Series, 426–56. New York, NY: Springer New York, 2000. http://dx.doi.org/10.1007/978-1-4612-1250-8_15.

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Sharma, Chinmaya, and Shiv Ranjan Kumar. "Erosion Analysis of Aramid Fiber–Epoxy Composite." In Lecture Notes in Mechanical Engineering, 469–74. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6469-3_43.

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Labed, Zohra, and Djamel Ghechi. "Study of Erosion Phenomenon in the CFM56-7B Turbojet." In Lecture Notes in Mechanical Engineering, 281–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37143-1_34.

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Mohanta, Niharika, and S. K. Acharya. "Solid Particle Erosion of Luffa cylindrica Fiber Reinforced Polymer Composite." In Lecture Notes in Mechanical Engineering, 411–20. New Delhi: Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1656-8_37.

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Khan, Rehan, H. H. Ya, William Pao, T. V. V. L. N. Rao, Azad Alam, and M. Azeem. "Investigation of Maximum Erosion Zone in the Horizontal 90° Elbow." In Lecture Notes in Mechanical Engineering, 223–30. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5753-8_21.

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Mangal, Gyanesh, Vinod Kumar, and Siddhartha. "Air Jet Erosion Behavior of AA 6082 T6 Aluminum Alloy." In Lecture Notes in Mechanical Engineering, 43–51. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8704-7_5.

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Poloprudský, Jakub, Alice Chlupová, Tomáš Kruml, Sergej Hloch, Petr Hlaváček, and Josef Foldyna. "Effect of Standoff Distance on the Erosion of Various Materials." In Lecture Notes in Mechanical Engineering, 164–71. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53491-2_18.

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Kumar, Kaushal, Ajay Kumar, and Vinay Singh. "Optimization of Process Parameters for Erosion Wear in Slurry Pipeline." In Lecture Notes in Mechanical Engineering, 131–40. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6469-3_12.

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Singh, Prashant Kumar, and Pallvita Yadav. "Studies on Erosion and Oxidation Behaviour of Cobalt-Based Coatings." In Lecture Notes in Mechanical Engineering, 311–18. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0909-1_31.

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Lyczkowski, Robert W. "METC Starts Erosion R&D Cooperative Venture and MFIX Code Development Using FLUFIX Code." In Mechanical Engineering Series, 175–83. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66502-3_13.

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Conference papers on the topic "Mechanical erosion"

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Acierno, Domenico, Luigi Sanguigno, Gaetano Arena, Klaus Friedrich, Eugen Padenko, and Pietro Russo. "Erosion behavior and mechanical properties of thermoplastic polyurethanes." In TIMES OF POLYMERS (TOP) AND COMPOSITES 2014: Proceedings of the 7th International Conference on Times of Polymers (TOP) and Composites. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4876790.

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Zhang, Liangchi. "Mechanical Erosion of Boiler Tubes: Mechanism and Formulation." In Proceedings of the International Symposium on Plasticity and Impact (ISPI 2001). WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812794536_0017.

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Yamagata, Takayuki, Nobuyuki Fujisawa, Akiharu Ikarashi, Daichi Hama, and Tsuyoshi Takano. "Experiments on Liquid Droplet Impinging Erosion." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37230.

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In the present paper, liquid droplet impinging erosion is studied using a newly developed spray-jet-type apparatus to evaluate the erosion rate of aluminum material due to the droplets having a diameter of tens of micrometers. In order to characterize the droplet properties, such as velocity, diameter and number density, optical measurements have been introduced using PIV, direct imaging and light extinction method, respectively. While, the erosion rate of aluminum material is evaluated using the spray-jet apparatus. The present measurements indicate that the non-dimensional erosion rate agrees closely with the previous result obtained at larger droplet diameters. However, the threshold velocity was estimated to be larger than that of the previous result, suggesting the influence of droplet diameter on the threshold velocity.

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Shwiyhat, Nathan, and Ming Xiao. "Effect of Suffusion on Mechanical Characteristics of Sand." In International Conference on Scour and Erosion (ICSE-5) 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41147(392)36.

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Barbarioli, Juliana, André Tschiptschin, Cherlio Scandian, and Manuelle Curbani Romero. "Cavitation erosion resistance of a Co28Cr22Fe alloy." In 24th ABCM International Congress of Mechanical Engineering. ABCM, 2017. http://dx.doi.org/10.26678/abcm.cobem2017.cob17-2055.

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Zhang, Huayong, and Lu Han. "A Dynamic Relationship Between Vegetation and Erosion." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67983.

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In order to give a comprehensive view about the essential relationship between vegetation and erosion, we employ an analysis of systemic dynamic stability based on vegetation-erosion equation raised by Thornes, and the further simulation about the equilibriums (fixed points) of the dynamic system can be given. We get four different types of the real equilibriums of the system. As well as this, the stability about all equilibriums is determined by systematic differential equation qualitative theory -Jacobi method. As a development of the original work of J.B.Thornes, this theoretical study highlights the insight to the interactive competition between vegetation and erosion.

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Eppes, Martha Cary, and Russell Keanini. "CLIMATE, MECHANICAL WEATHERING, ROCK EROSION AND REGOLITH PRODUCTION: NEW INSIGHTS FROM FRACTURE MECHANICS." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-306113.

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Pease, Leonard F., Judith Ann Bamberger, and Michael J. Minette. "Erosion Front Patterns in Pulse Jet Mixed Vessels." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71133.

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Here we observe the spatial and temporal patterns that erosion fronts driven by pulsed radial wall jets develop in double ring arrays of pulse tubes within slurry mixing vessels with curved bottoms. Although erosion of unbounded particle beds driven by individual steady jets has been studied for decades, the patterns developed within mixing vessels as neighboring transient erosion fronts collide and the subsequent relaxation of the particle bed towards the vessel center when the jets stop (i.e., as the pulse tubes refill within mixing vessels) remain incompletely understood. Relaxation here refers to motion of fluidized particle beds that were driven toward the vessel seam by radial wall jets that subsequently return or relax from the seam toward the center of the vessel when the jets turn off. Relaxation does not refer to downward individual or hindered particle settling. Spatial variations in the particle bed due to these relaxing particle beds comprise an important “initial” condition to the mathematical description of the evolution of the jet driven erosion front, and erosion fronts other than the one that expands radially from the pulse tube axis have only recently been described. For example, Bamberger, et al. (2017) [9], recently evaluated five selected cases of erosion patterns found in vessels 15 and 70 inches in diameter with 2:1 semi-elliptical bottoms. A highlight of that study was the discovery of a second type of erosion front that forms at the plane of symmetry between two adjacent pulse tubes. As neighboring radial wall jets collide they form an upwelling sheet of fluid; this second type of erosion front forms immediately beneath this upwelling flow. However, variations in this type of planar erosion front have not been cataloged previously. In this study, we systematically probe the erosion fronts driven by these upwelling sheets in greater detail and evaluate the relaxation of the particle bed to its “initial” condition after the pulse ceases. Variations in the erosion patterns and particle bed relaxation are evaluated as a function of particle concentration, density, and size. This study specifically focusses on video images collected from the 15 inch vessel because it provides distinctive visualization of erosion pattern behavior. We find the upwelling sheets to be more influential on the erosion patterns at lower particle concentrations, making these findings particularly important to low solids concentration vessels. At lower particle concentrations, flow at the base of the plane of symmetry readily erodes particle beds. At higher particle concentrations, piles of unmobilized solids accumulate beneath colliding jets either because the erosion mechanism vanishes or because erosion at the plane of symmetry is slow compared to radial erosion. We also find that the upwelling sheets introduce a flow that drives erosion patterns from outer ring jets toward the vessel center along the curved vessel floor along the plane of symmetry between nozzles. We further find that the rate of particle bed relaxation back toward the vessel center after the pulse ceases may correlate with concentration, particle density, and size. Higher concentrations and particle densities relax faster. The rate at which the entire bed relaxes toward the vessel center is faster near the vessel seam but slows as the relaxing front approaches the vessel center. This paper discusses competing mechanisms to explain these observations, including particle rolling, bed avalanches, gravity driven fluidized bed motion, and suspended particle sedimentation.

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Zhang, Ning, Zhuang Li, Stanley Klemetson, and Saikiran Yadagiri. "CFD and Acoustical Analyses for Coastal Highway Erosion." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37142.

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Highway 82 is located along the Gulf of Mexico and provides one of the barriers to flood damage from wave action that occurs normally along the coastal shoreline and as a result of wave surges during stormy weather and hurricanes. When the waves break over the top of Highway 82 form the south, significant erosion damage will occur on the north side of the road instead, often resulting in destruction of the shoulder and the roadway that it supports. This results in significant maintenance cost for the State of Louisiana, loss of vital access to the coastline, and destruction of the protective barrier necessary to protect the residences and uses of the land along the Gulf of Mexico. The CFD and acoustical analyses were performed to evaluate the erosion resistance of a design configuration. The CFD simulations were conducted to investigate the weather and wave conditions and the impact on the shoulder erosion. The in-situ pressure data were recorded at several locations on and downstream of the north-side shoulder, and acoustical analyses were conducted to investigate the acoustic characteristics associated with the weather and wave conditions.

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Sosnovskiy, Leonid A., Vladimir V. Vorobyev, Alexei A. Kostyuchenko, and Alexander M. Bordovsky. "Corrosion-Erosion Fatigue of Pipeline Tubes." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63111.

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Reliability and durability of pipeline tubes are mainly affected by repeated alternative pressure, the processes of corrosion and erosion. These phenomena cause degradation of material on the internal surface of the tube. However the traditional methods (experimental and theoretical) of investigation of such damage processes are developed as if these processes acted separately, independently from each other. There are some works in which the joint effect of two phenomena is observed: corrosion-mechanical fatigue and erosive corrosion (or corrosive erosion). Meanwhile in reality the processes of mechanical fatigue, corrosion and hydro erosion act simultaneously and develop in the same part of the tube.

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