Relevant bibliographies by topics / Study Plaster Models

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Study Plaster Models'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Study Plaster Models"

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Orozco, Odell Ali Chávez, Olivia Hernández Molina, and Cristóbal Landa Román. "Alginate Brand Comparison: A Study on Measurement and Hydration." EAS Journal of Dentistry and Oral Medicine 6, no. 06 (2024): 111–16. http://dx.doi.org/10.36349/easjdom.2024.v06i06.004.

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Alginate, discovered in 1881 by British chemist E.C.C. Stanford, is a polysaccharide isolated from seaweed. Since its introduction into dentistry in 1940, it has been used as an impression material due to its hydrophilic and hydrophobic properties, which allow dimensional changes during impression and solidification. For optimal impression, type 3 plaster is recommended, which presents lower expansion and longer setting time, ensuring dimensional accuracy. In addition, the stability of the dental model is crucial, including mechanical and dimensional strength. Plastic and metal trays offer dif
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Reuschl, Ralph Philip, Wieland Heuer, Meike Stiesch, Daniela Wenzel, and Marc Philipp Dittmer. "Reliability and validity of measurements on digital study models and plaster models." European Journal of Orthodontics 38, no. 1 (2015): 22–26. http://dx.doi.org/10.1093/ejo/cjv001.

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Shafaee, Hooman, Fahimeh Farzanegan, Bahareh Yaloodbardan, Seyed Hosein Hoseini Zarch, and Abdolrasoul Rangrazi. "Comparison of dental dimensions in models developed with digital procedures and plaster models." Journal of Oral Research 13, no. 1 (2024): 15–25. http://dx.doi.org/10.17126/joralres.2024.002.

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Aim: This study aimed to collect evidence on the validity and reliability of measurements obtained from digital impression techniques. Materials and Methods: This comparative study was conducted on 31 patients. Intraoral scanner was applied to all patients. For each patient, an alginate impression of the upper maxilla was taken and later the 3D digital model was extracted by dental cone-beam computed tomography (CBCT). For preparation of plaster models, alginate impressions were taken and immediately poured with dental stone. In the next stage, a comparison was performed among the intraoral sc
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Fleming, PS, V. Marinho, and A. Johal. "Orthodontic measurements on digital study models compared with plaster models: a systematic review." Orthodontics & Craniofacial Research 14, no. 1 (2010): 1–16. http://dx.doi.org/10.1111/j.1601-6343.2010.01503.x.

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Rebong, Raymund E., Kelton T. Stewart, Achint Utreja, and Ahmed A. Ghoneima. "Accuracy of three-dimensional dental resin models created by fused deposition modeling, stereolithography, and Polyjet prototype technologies: A comparative study." Angle Orthodontist 88, no. 3 (2018): 363–69. http://dx.doi.org/10.2319/071117-460.1.

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ABSTRACT Objectives: The aim of this study was to assess the dimensional accuracy of fused deposition modeling (FDM)–, Polyjet-, and stereolithography (SLA)–produced models by comparing them to traditional plaster casts. Materials and A total of 12 maxillary and mandibular posttreatment orthodontic plaster casts were selected from the archives of the Orthodontic Department at the Indiana University School of Dentistry. Plaster models were scanned, saved as stereolithography files, and printed as physical models using three different three-dimensional (3D) printers: Makerbot Replicator (FDM), 3
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Bedi, Prince, Divya Shetty, Bhupender Singh, Ayushi Nagar, and Payal Sharma. "Orthodontics in 3D: Unveiling the precision of printed models vs plaster traditions." Journal of Contemporary Orthodontics 9, no. 1 (2025): 111–16. https://doi.org/10.18231/j.jco.2025.015.

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Orthodontic treatment relies heavily on accurate diagnosis and treatment planning. Traditionally, study casts obtained from plaster models have been an essential component of orthodontic records. However, advancements in three-dimensional imaging and modeling have introduced digital alternatives, offering ease of access, storage, and transfer of patient information. To compare the accuracy of linear measurements obtained from 3D printed models with those taken from plaster study models and identify the most reliable type of printed model. The study was conducted on ten patients requiring fixed
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Tran, Vo Huyen Bao, Tran Hung Lam, Truong Nhut Khue, Tran Ngoc Quang Phi, and Hoang Viet. "Accuracy and Reliability of Digital Dental Models Obtained by Intraoral Scans Compared with Plaster Models." Applied Sciences 15, no. 6 (2025): 2927. https://doi.org/10.3390/app15062927.

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Introduction: In orthodontics, determining the parameters of tooth size and dental arch and conducting Bolton analysis is crucial for diagnosis, treatment planning, and patient outcomes. This study evaluates the accuracy and reliability of measuring dental-arch dimensions on digital models created using the CEREC Primescan intraoral scanner, compared to measurements taken from plaster models. Methods: The study included two types of dental models (plaster and intraoral scan) from sixty-three subjects. Impressions were taken to create plaster models, and the subjects’ mouths were scanned with t
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Murugesan, Arathi, and Arvind Sivakumar. "Comparison of accuracy of mesiodistal tooth measurements made in conventional study models and digital models obtained from intraoral scan and desktop scan of study models." Journal of Orthodontics 47, no. 2 (2020): 149–55. http://dx.doi.org/10.1177/1465312520910755.

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Objective: To compare the measured values obtained from the plaster model, digital models created by scanning the plaster models and direct intraoral scanning with the values obtained from direct intraoral measurements. Design: This was a prospective clinical study. Setting: The study was conducted in Department of Orthodontics, Saveetha Dental College and Hospital, Tamil Nadu, India. Participants: Ten patients before the start of orthodontic treatment were selected for the study. Methods: A computer-aided design and manufacturing (CAD-CAM) system is an advanced technology that is being adopte
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Abizadeh, Neilufar, David R. Moles, Julian O’Neill, and Joseph H. Noar. "Digital versus plaster study models: How accurate and reproducible are they?" Journal of Orthodontics 39, no. 3 (2012): 151–59. http://dx.doi.org/10.1179/1465312512z.00000000023.

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Kardach, Hubert, Anna Szponar-Żurowska, and Barbara Biedziak. "A Comparison of Teeth Measurements on Plaster and Digital Models." Journal of Clinical Medicine 12, no. 3 (2023): 943. http://dx.doi.org/10.3390/jcm12030943.

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(1) Background: Modern imaging methods and constantly developing technologies extend the range of diagnostic tools in medicine and in orthodontics. Thanks to them, scientists and doctors can use devices designed to diagnose 3D structures of the human body. The aim of the study was to assess the usefulness of digital orthodontic models as a diagnostic tool in the work of an orthodontist through a comparative analysis of the value of orthodontic measurements made on traditional plaster models and virtual models. (2) Methods: A total of 80 sets of models were made, including 40 sets of plaster mo
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Dissertations / Theses on the topic "Study Plaster Models"

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Madhoo, Amika. "A comparison of three types of orthodontic study models." University of the Western Cape, 2020. http://hdl.handle.net/11394/8126.

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Magister Scientiae Dentium - MSc(Dent)<br>The aim of this present study was to compare the accuracy of digital and printed study models with plaster study models, that are considered the gold standard. The objectives were to compare the accuracy of measurements obtained from digital and printed study models with those of plaster study models, to establish which type of study model yielded the most accurate measurements in comparison to plaster study models and to identify possible disadvantages and errors that can be made using any of the three types of study models.
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Morse, Evan. "Objectified : a sculptural study /." Norton, Mass. : Wheaton College, 2009. http://hdl.handle.net/10090/8397.

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Konakovic, Damir. "Orthodontic diagnostics and measurements on digital study models made with an intraoral scanner." Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19970.

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Introduktion:Modellanalys har traditionellt gjorts på fysiska gipsmodeller. Idag finns ny teknik som möjliggör framställning av digitala modeller utan behov av konventionella avtryck. Syftet med den här studien är att undersöka tillförlitligheten hos digitala modeller framställda med en intraoral scanner, patientupplevelsen och olika tidsaspekter förenade med tekniken.Metod:På ett urval av 20 vuxna personer gjordes både konventionell avtryckstagning och en intraoral scanning (TRIOS, 3Shape) av bettet för framställning av gipsmodeller och digitala modeller. Den kliniska tidsåtgången mättes och
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Thelusmond, Jean-Rene. "The Use of Plastic Media in a Movable Bed Model to Study Sedimentary Processes in Rivers." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/770.

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Gurrutxaga, Lerma Beñat. "A dynamic discrete dislocation plasticity model for the study of plastic relaxation under shock loading." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/42360.

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This thesis concerns with Dynamic Discrete Dislocation Plasticity (D3P), a planar method of discrete dis- location dynamics aimed at the study of plastic relaxation processes in crystalline materials subjected to weak shock loading and high strain rates. Traditionally, the study of plasticity under these condi- tions was based on experimental measurement of the macroscopic response of the material. Using these data, well-known macroscopic constitutive laws and equations of state have been formulated. However, direct simulation of dislocations as the dynamic agents of plasticity in those circum
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Moberg, Pontus, and Filip Svensson. "Cost Optimisation through Statistical Quality Control : A case study on the plastic industry." Thesis, Blekinge Tekniska Högskola, Institutionen för industriell ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-21922.

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Background. Shewhart was the first to describe the possibilities that come with having a statistically robust process in 1924. Since his discovery, the importance of a robust process became more apparent and together with the consequences of an unstable process. A firm with a manufacturing process that is out of statistical control tends to waste money, increase risks, and provide an uncertain quality to its customers. The framework of Statistical Quality Control has been developed since its founding, and today it is a well-established tool used in several industries with successful results. W
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Ambard, Marie-Hélène. "Etude par simulation numerique d'un modele tridimensionnel de nacn." Paris 6, 1987. http://www.theses.fr/1987PA066237.

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Les phases sont caracterisees par desordre d'orientation des molecules, mouvements de reorientation d'un puits de potentiel a un autre et des librations. La dynamique rotationnelle des molecules a ete etudiee par l'intermediaire de fonctions de correlation rotationnelles et de spectres de phonons. Une etude qualitative de ces fonctions a permis d'expliquer les largeurs variees des spectres
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Khosravi, Rahmani Ramin. "THREE-DIMENSIONAL NUMERICAL SIMULATION AND PERFORMANCE STUDY OF AN INDUSTRIAL HELICAL STATIC MIXER." See Full Text at OhioLINK ETD Center (Requires Adobe Acrobat Reader for viewing), 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1103149825.

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Dissertation (Ph.D.)--University of Toledo, 2004.<br>Typescript. "A dissertation [submitted] as partial fulfillment of the requirements of the Doctor of Philosophy degree in Engineering." Bibliography: leaves 323-340.
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Chieragatti, Rémy. "Influence de l'orientation cristallographique sur le comportement en fatigue oligocyclique du mar-m200 monocristallin." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0024.

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Etude experimentale sur le superalliage soumis a une charge cyclique uniaxiale suivant la direction de croissance 001 et les orientations 111, 011 et 123 a 650 c et 900c. Analyse des courbes d'ecrouissage cyclique. Caracterisation des systemes de glisement associes aux grandes deformations plastiques. Description par un modele de l'influence quantitative de l'orientation sur les courbes, d'ecrouissage cyclique. Mise en evidence du role preponderant de la periode de propagation des fissures sur l'endommagement. Prevision theorique de la duree de vie en fatigue en utilisant des donnees de fissur
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Klein, Holger. "Ordre local dans des phases quasicristallines, approximantes et liquides Al-Pd-Mn." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0138.

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Il existe, dans le systeme al-pd-mn, deux phases quasicristallines stables de structures icosaedrique et decagonale ainsi que deux familles de phases approximantes orthorhombiques. Par une etude de ce diagramme de phases nous avons precise les conditions de fabrication de monocristaux de phases approximantes ou quasicristallines. Les domaines d'equilibres entre les differentes phases solides et le liquide ont ete determines. Des structures atomiques de deux phases approximantes ont ete resolues par diffraction de rayons x sur monocristaux. Des clusters icosaedriques centres sur un mn definisse
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Books on the topic "Study Plaster Models"

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DiGiacomo, Ellen G. Alginate impression and diagnostic study model techniques. American Dental Assistants Association, 1997.

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Tamin, Mohd Nasir. Elasto-plastic finite element program and numerical study of a compact specimen. 1987.

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Amaro Pérez, Andrea, Adrián Suárez Zapata, Pedro A. Martínez Delgado, Abraham Menéndez Márquez, Jorge Victoria Ahuir, and José Torres País. Shielding effectiveness of plastic materials for 5G applications. Editorial Científica 3Ciencias, 2022. http://dx.doi.org/10.17993/ingytec.2022.79.

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The study and modelling of EMC are becoming more critical than ever due to the ubiquitous presence of electronic circuits in all aspects of our lives. Specifically, it is crucial to extend these studies to the new frequencies that, in a few years, will be a reality in modern telecommunications systems, such as 5G and its derived technologies. A specific critical field where the proper EMI shielding has been ensured to avoid EMC problems is the electric autonomous vehicles (EAVs). The huge number of electronics systems in new vehicles will dramatically extend the demands on the EMI shielding so
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Barrett, Louise, Robin Dunbar, and John Lycett. Human Evolutionary Psychology. Bloomsbury Academic, 2001. http://dx.doi.org/10.5040/9781350363366.

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Why do people resort to plastic surgery to look young? Why are stepchildren at greatest risk of fatal abuse? Why do we prefer gossip to algebra? Why must Dogon wives live alone in a dark hut for five days a month? Why are young children good at learning language but not sharing? Over the past decade, psychologists and behavioral ecologists have been finding answers to such seemingly unrelated questions by applying an evolutionary perspective to the study of human behavior and psychology. Human Evolutionary Psychology is a comprehensive, balanced, and readable introduction to this burgeoning fi
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Book chapters on the topic "Study Plaster Models"

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Ee, Ooi Chin, Mohammadreza Vafaei, and Sophia C. Alih. "Lumped Plasticity Model’s Accuracy in Estimating the Cyclic Response of Low and High-Ductile Reinforced Concrete Frames." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4355-1_57.

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AbstractThe lumped plasticity model has been widely used for the nonlinear analysis of structures due to its simplicity, established guideline in seismic design codes, and less computational effort. However, it has been shown that the accuracy of the lumped plasticity model depends significantly on the plastic hinges’ properties. In this study, the nonlinear behaviors of two similar RC frames but with two different reinforcing detailing were simulated using the lumped plasticity model and the results were compared with those obtained from the conducted experiments on the frames. The effects of
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Al Ahmed, Sardar Wasi Uddin, Richard Glavee-Geo, Siv Marina Flø Grimstad, and Markus Andre Hånes Engeseth. "Circular Business Models for SMEs in the Fishing Gear Industry." In Marine Plastics: Innovative Solutions to Tackling Waste. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-31058-4_4.

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AbstractRecycling plastic materials including fishing nets, ropes, and components (FNRCs) through the business models of SMEs and microenterprises can ensure both economic and environmental benefits. The aim of this chapter is to explore how a circular business model for SMEs in the fishing gear industry can be realised and to provide increased understanding of the circular business model processes. The study examined the development of circular business models and practices of circularity by companies in the fishing gear industry. We applied a qualitative research design and developed framewo
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Teng, Hao, Hailang Wan, and Junying Min. "Experimental Study on the Cohesive Model of Steel-Carbon Fiber Reinforced Plastic Interface by Laser Treatment." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_67.

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AbstractThe interfacial bonding performance between steel and CFRP significantly influences the mechanical properties of steel-CFRP hybrid structures. Surface treatment is commonly employed to enhance the bonding interface of steel-CFRP. Laser surface treatment is particularly advantageous due to its high efficiency, automatic production capabilities, and widespread use in enhancing interfacial bonding performance. However, little attention has been given to the impact of laser surface treatment on the property parameters that describe the cohesive mode's mechanical behavior at the steel-CFRP
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Buccelli, Dalton Oswaldo, and Pedro Luiz de Oliveira Costa Neto. "Cleaner Production Evaluation Model: Multiple Case Study in the Plastic Industry." In Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-662-44736-9_1.

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Simoncelli, A., L. Buglioni, G. Abate, P. Gayol, A. J. Sánchez Egea, and D. Martínez Krahmer. "Effects of Drill Point Geometry on Cutting Forces and Torque When Drilling AA1050." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-77429-4_74.

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AbstractReducing energy consumption in drilling operations is crucial for achieving sustainability goals. A study examined 36 drill bits with different geometries and conditions on AA1050. It assessed thrust forces and torque in two machining conditions (Cmin and Cmax) while considering mesh density, tool geometry, and boundary conditions. The results show that finer mesh models exhibit lower thrust forces, while mass scaling primarily influences torque. The pilot hole configuration decreases force, consistent with experiments. Torque decreases by increasing mesh density, matching with the exp
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Wang, Qiuping, Wanli Li, and Daozhi Wang. "Simulation Research on Cutting of Shield Machine Cutter Tool Based on Anisotropic Composite Materials." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_58.

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AbstractIn order to study the cutting force and variation of anisotropic composite materials such as plastic vertical drainage board left in soft soil foundation by the cutter on the cutterhead of shield machine. Finite element model of orthogonal cutting theory based on macroscopic anisotropic composite materials was established by numerical simulation. Based on the above model, the finite element analysis software LS-DYNA was used to numerically simulate the cutting of plastic vertical drainage board by shield machine cutter in a project in Singapore. Meanwhile, the single cutter test device
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Wu, Song, Ming Zhang, and Yunbo Zhou. "Study on Blast Resistance of Armored Steel Welded Joint Structures." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_68.

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AbstractIn order to study the anti-detonation performance of welded joint structure of armored steel, the finite element analysis of welded joint structure under explosion impact was carried out by using material assignment method and structured ALE algorithm (S-ALE), and the accuracy of the model was verified by explosion impact test. The central deformation and failure form of each weld structure under different equivalent loads of a single explosion are studied. Repeated explosive loading of weld structure based on complete restart technology; The cumulative analysis of plastic deformation
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Lavayen-Farfán, Daniel, José Antonio Butenegro-García, María Jesús López-Boada, Miguel Ángel Martínez-Casanova, and Jorge Antonio Rodriguez-Hernandez. "On the Use of Carbon Fiber Composites for the Enhancement of the Rollover Resistance of Steel Buses." In Proceedings of the XV Ibero-American Congress of Mechanical Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-38563-6_25.

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AbstractThe increasing use of composites in vehicles in recent years is one of the current trends in the automotive industry. In particular, fiber composites are being used as reinforcements for the main structural elements of vehicles, due to their outstanding specific mechanical properties and low weight. When combined with metal parts, fiber composites can significantly enhance the crashworthiness of vehicle structures, by increasing their energy absorption capabilities and resistance to plastic deformations and permanent damage. This work presents CFRP reinforcements as a case study for en
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González-Herrera, A., J. Garcia-Manrique, A. Cordero, and J. Zapatero. "Plastic Zone Study by Means of Tri-Dimensional Finite Element Models on Fatigue Crack Closure." In Fracture and Damage Mechanics V. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-413-8.555.

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Prabhakar, Srijan, D. Ravi Kumar, and S. Aravindan. "Numerical and Experimental Investigation of Multi-axial Forging of AA6082 Alloy." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58006-2_3.

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AbstractMulti-axial forging is a useful technique for producing ultrafine-grained structures in bulk materials by means of severe plastic deformation. The workpiece is subjected to a specific plastic strain in the multi-axial forging process by repeatedly upsetting along all three axes by rotating the sample by 90° between the two passes; this leads to the accumulation of a large plastic strain in the material. The shape of the product does not change, as equal compressive strain is applied in all directions. Severe plastic deformation methods such as multi-axial forging can be used for produc
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Conference papers on the topic "Study Plaster Models"

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Fujikawa, Yasunori, Ryota Matsui, and Taichiro Okazaki. "Influence of hysteretic models on viscous damping in nonlinear response history analysis of buildings." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.3303.

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&lt;p&gt;In time-history response analysis of elastic-plastic systems, common viscous damping models yield unintended spurious damping forces. A previous study exhibited thirteen different damping models resulted in different elastic-plastic response of a 5-degree-of-freedom system assigning a bi-linear hysteresis model. This paper expands on that work by analyzing the impact of these damping models on the elastic-plastic response of systems incorporating five distinct hysteresis models. The number of rapid stiffness changes significantly increases the potential of generating large spurious da
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Jadoon, Usman Khan, Ismael D�az, and Manuel Rodr�guez. "A Comparative Study of Aspen Plus and Machine Learning Models for Syngas Prediction in Biomass-Plastic Waste Co-gasification." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.174749.

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The co-gasification of biomass and plastic waste offers a promising pathway for sustainable syngas production, necessitating precise prediction of its composition to optimize efficiency. This study compares the performance of Aspen Plus models, including the thermodynamic equilibrium model (TEM) and restricted thermodynamic equilibrium model (RTM), with machine learning (ML) techniques, focusing on the support vector regression (SVR) for syngas prediction during steam and air co-gasification. Aspen Plus simulations provided valuable mechanistic insights, while the ML model demonstrated superio
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Nabeshima, Kunihiko, and Yoichi Mukai. "A Fundamental Study on Initial Assessment of Damage based on Physical Parameter Identification using SISO-ARX Model." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.0491.

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&lt;p&gt;In this paper, a new physical parameter identification method in the time domain utilizing the Single- Input-Single-Output Auto Regressive eXogenous (SISO-ARX) model has been developed for an initial assessment of damage, and its fundamental characteristics are discussed. The theoretical validity of the proposed method is demonstrated through numerical examples for the linear SDOF/MDOF shear building model. Furthermore, we have confirmed that the presence/degree of plasticization is roughly detected story-by-story, and introducing a forgetting factor improves the detection sensitivity
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Mullick, Divya, Rashmin Damle, Nikhil Bhesaniya, Yash Shukla, and Rajan Rawal. "Influence of hygroscopic property of lime and cement plaster on building energy consumption for different climate zones of India." In Comfort at The Extremes 2023. CEPT University Press, 2024. http://dx.doi.org/10.62744/cate.45273.1126-102-110.

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Lime and cement are the commonly used walling materials in India. They are used as wall mortar and wall finish materials. Lime is a sustainable material with qualities such as breathability and better moisture transfer properties. Though it is a natural material, in contemporary construction practices, lime mortar or lime plaster has been replaced by cement mortar and cement plaster. To predict the impact of the moisture-buffering ability of building materials, hygrothermal simulations are carried out. It is a simulation-based study where the two numerical models of EnergyPlus are studied: Con
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Charvat, Pavel, Lubomir Klimes, Milan Ostry, and Josef Stetina. "A Validated TRNSYS Model of Thermally Activated Layer With Phase Change Material." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51705.

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Simulations of building performance or HVAC systems performance usually cover a time period of several weeks, months or even a year. Therefore, the computational demand of simulation models of buildings or HVAC systems can be quite constraining for their practical application. A substantial simplification of the simulated problem is usually necessary to reduce the computational demand. The paper reports the development of a quasi 1D model of a thermally activated layer with phase change material. The model was developed in MATLAB and subsequently implemented as a TRNSYS type. The model was val
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Jackson, Robert L., and Itzhak Green. "A Finite Element Study of Elasto-Plastic Hemispherical Contact." In STLE/ASME 2003 International Joint Tribology Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/2003-trib-0268.

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This work presents a finite element study of elasto-plastic hemispherical contact. The results are normalized such that they are valid for macro contacts (e.g., rolling element bearings) and micro contacts (e.g., asperity contact). The material is modeled as elastic-perfectly plastic. The numerical results are compared to other existing models of spherical contact, including the fully plastic case (known as the Abbott and Firestone model) and the perfectly elastic case (known as the Hertz contact). At the same interference, the area of contact is shown to be larger for the elasto-plastic model
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Yazawa, Takanori, Tatsuki Otsubo, Yasuhiko Ougiya, et al. "Study on high-speed contactless 3D measurement for tooth plaster model." In 2012 International Symposium on Optomechatronic Technologies (ISOT 2012). IEEE, 2012. http://dx.doi.org/10.1109/isot.2012.6403265.

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Wijeyeratne, Navindra, Firat Irmak, and Ali P. Gordon. "A Comparative Study of Crystal Visco-Plastic Modeling of Directionally Solidified Nickel-Base Superalloys." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-82230.

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Abstract Nickel-base superalloys (NBSAs) are a group of materials that are used in high-temperature applications such as gas turbine components. These materials are renowned for their superior strength and fatigue properties at high temperatures. This work primarily focuses on Directionally solidified (DS) NBSAs. Directionally solidified materials are comprised of columnar grains which are parallel to the &amp;lt;001&amp;gt; direction. The alignment of the grain boundaries in the direction of the stress axis enhances the strength properties of these materials at elevated temperatures. To impro
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Lu, Wensheng, Xiaoling Li, Meng Li, and Xilin Lu. "Study on Elasto-Plastic Similitude Relationship of Steel Pier Models." In 7th International Conference on Tall Buildings. Research Publishing Services, 2009. http://dx.doi.org/10.3850/9789628014194_0028.

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Wadwalkar, Saurabh S., Robert L. Jackson, Lewis Payton, and Lior Kogut. "A Study of Plastic Deformation of Heavily Loaded Spherical Surfaces." In STLE/ASME 2008 International Joint Tribology Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ijtc2008-71286.

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There is a need to develop our understanding of fully plastic contact between spheres and a flat surfaces that results in the spheres heavily deforming and eventually flattening out. Most work conducted in this area has been for relatively lightly loaded spherical contacts that deform elastically and elasto-plastically. The case considered here is also the reverse case of a rigid spherical indenter penetrating a deformable surface. The work builds on past theoretical models that used volume conservation to consider plastic deformation. The results provide relationships which may be used to mod
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Reports on the topic "Study Plaster Models"

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McIntee, Olivia. Study of Anisotropic Elastic-Plastic Model Calibration. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1470821.

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Kinikles, Dellena, and John McCartney. Hyperbolic Hydro-mechanical Model for Seismic Compression Prediction of Unsaturated Soils in the Funicular Regime. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2022. http://dx.doi.org/10.55461/yunw7668.

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A semi-empirical elasto-plastic constitutive model with a hyperbolic stress-strain curve was developed with the goal of predicting the seismic compression of unsaturated sands in the funicular regime of the soil-water retention curve (SWRC) during undrained cyclic shearing. Using a flow rule derived from energy considerations, the evolution in plastic volumetric strain (seismic compression) was predicted from the plastic shear strains of the hysteretic hyperbolic stress-strain curve. The plastic volumetric strains are used to predict the changes in degree of saturation from phase relationships
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Zhou. L52286 Limit State Function Development for the Application of RBD and Assessment to Onshore Pipelines. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0010253.

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For pipelines that utilize high design factors, excessive plastic deformation may occur in the hoop direction under internal pressure applied during field hydrostatic testing. Excessive plastic deformation can lead to coating damage and subsequent corrosion. Therefore, a limit state function for excessive plastic deformation was established to address this condition. The limit state function was established as the allowable plastic strain minus the accumulated plastic hoop strain induced by hydrostatic test pressure. The objective of this study was to expand the limit state function library to
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Clausen, Jay, Michael Musty, Anna Wagner, Susan Frankenstein, and Jason Dorvee. Modeling of a multi-month thermal IR study. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41060.

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Inconsistent and unacceptable probability of detection (PD) and false alarm rates (FAR) due to varying environmental conditions hamper buried object detection. A 4-month study evaluated the environmental parameters impacting standoff thermal infra-red(IR) detection of buried objects. Field observations were integrated into a model depicting the temporal and spatial thermal changes through a 1-week period utilizing a 15-minute time-step interval. The model illustrates the surface thermal observations obtained with a thermal IR camera contemporaneously with a 3-d presentation of subsurface soil
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He, Rui, Na (Luna) Lu, and Jan Olek. Development of In-Situ Sensing Method for the Monitoring of Water-Cement (w/c) Values and the Effectiveness of Curing Concrete. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317377.

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As the most widely used construction material, concrete is very durable and can provide long service life without extensive maintenance. The strength and durability of concrete are primarily influenced by the initial water-cement ratio value (w/c), and the curing condition during the hardening process also influences its performance. The w/c value is defined as the total mass of free water that can be consumed by hydration divided by the total mass of cement and any additional pozzolanic material such as fly ash, slag, silica fume. Once placed, field concrete pavements are routinely cured with
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Welch, David, and Gregory Deierlein. Technical Background Report for Structural Analysis and Performance Assessment (PEER-CEA Project). Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2020. http://dx.doi.org/10.55461/yyqh3072.

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This report outlines the development of earthquake damage functions and comparative loss metrics for single-family wood-frame buildings with and without seismic retrofit of vulnerable cripple wall and stem wall conditions. The underlying goal of the study is to quantify the benefits of the seismic retrofit in terms of reduced earthquake damage and repair or reconstruction costs. The earthquake damage and economic losses are evaluated based on the FEMA P-58 methodology, which incorporates detailed building information and analyses to characterize the seismic hazard, structural response, earthqu
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Shin, Boonam, Nitin Tiwari, Peter J. Becker, and Antonio Bobet. Improved Light Weight Deflectometer Test (LWD) and Analysis. Purdue University, 2025. https://doi.org/10.5703/1288284317813.

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This study focused on improving light weight deflectometer (LWD) testing protocols and understanding material and equipment variability. The Indiana Department of Transportation (INDOT) adopted the LWD test for its efficiency and effectiveness in measuring soil stiffness, a crucial parameter for pavement structural layers. However, challenges remain for implementing LWD testing, particularly in small construction areas. There are also challenges with establishing standardized performance-related criteria for various subgrade treatments. To address these obstacles, this research aimed to develo
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Kysar, Jeffrey W. Combined Experimental and Computational Study of Plastic Deformation in Crystals and Bicrystals for the Development of Multi-Length Scale Constitutive Models. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada495430.

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Ramakrishnan, Aravind, Ashraf Alrajhi, Egemen Okte, Hasan Ozer, and Imad Al-Qadi. Truck-Platooning Impacts on Flexible Pavements: Experimental and Mechanistic Approaches. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-038.

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Truck platoons are expected to improve safety and reduce fuel consumption. However, their use is projected to accelerate pavement damage due to channelized-load application (lack of wander) and potentially reduced duration between truck-loading applications (reduced rest period). The effect of wander on pavement damage is well documented, while relatively few studies are available on the effect of rest period on pavement permanent deformation. Therefore, the main objective of this study was to quantify the impact of rest period theoretically, using a numerical method, and experimentally, using
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Committee on Toxicology. New Approach Methodologies (NAMs) In Regulatory Risk Assessment Workshop Report 2020- Exploring Dose Response. Food Standards Agency, 2024. http://dx.doi.org/10.46756/sci.fsa.cha679.

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The UK Food Standards Agency (FSA) and the Committee on Toxicity of Chemicals in Food, Consumer Products and the Environment (COT) held an “Exploring Dose Response” workshop in a multidisciplinary setting inviting regulatory agencies, government bodies, academia and industry. The workshop provided a platform from which to address and enable expert discussions on the latest in silico prediction models, new approach methodologies (NAMs), physiologically based pharmacokinetics (PBPK), future methodologies, integrated approaches to testing and assessment (IATA) as well as methodology validation. U
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