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Dissertations / Theses on the topic 'Linear FEM analyse'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

VIALE, NICOLA. "A new flat jack test for evaluating shear properties on unreinforced masonry." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2846617.

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2

Lofink, Paul [Verfasser], Wolfgang H. [Akademischer Betreuer] Müller, Wolfgang H. [Gutachter] Müller, and Nikolai D. [Gutachter] Tutyshkin. "FEM-gestützte Analyse der linear-elastischen und hyperelastischen eigengravitierenden Erde unter dem Aspekt geometrischer und physikalischer Nichtlinearitäten / Paul Lofink ; Gutachter: Wolfgang H. Müller, Nikolai D. Tutyshkin ; Betreuer: Wolfgang H. Müller." Berlin : Technische Universität Berlin, 2018. http://d-nb.info/1156276659/34.

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3

Jakel, Roland. "Lineare und nichtlineare Analyse hochdynamischer Einschlagvorgänge mit Creo Simulate und Abaqus/Explicit." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-171812.

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Der Vortrag beschreibt wie sich mittels der unterschiedlichen Berechnungsverfahren zur Lösung dynamischer Strukturpobleme der Einschlag eines idealisierten Bruchstücks in eine Schutzwand berechnen lässt. Dies wird mittels zweier kommerzieller FEM-Programme beschrieben: a.) Creo Simulate nutzt zur Lösung die Methode der modalen Superposition, d.h., es können nur lineare dynamische Systeme mit rein modaler Dämpfung berechnet werden. Kontakt zwischen zwei Bauteilen lässt sich damit nicht erfassen. Die unbekannte Kraft-Zeit-Funktion des Einschlagvorganges muss also geeignet abgeschätzt und als äuß

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4

Teklemariam, Daniel Mekonnen, and Bennie Hamunzala. "Design of Thick Concrete Beams : Using Non-Linear FEM." Thesis, KTH, Bro- och stålbyggnad, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189141.

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The experimental studies performed on the behaviour of very thick concrete beams subjected to static loads have revealed that the shear mechanisms play an important role in the overall response and failure behaviour. The aim of this thesis is to recommend suitable design methods for thick concrete beams subjected to off-centre static concentrated load according Eurocode 2 by using non-linear finite element analysis (NLFEA). To achieve this task, Abaqus/Explicit has been used by employing constitutive material models to capture the material non-linearity and stiffness degradation of concrete. C

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Denimal, Enora. "Prédiction des instabilités de frottement par méta-modélisation et approches fréquentielles : Application au crissement de frein automobile." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEC039/document.

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Le crissement de frein est une nuisance sonore qui représente des coûts importants pour l'industrie automobile. Il tire son origine dans des phénomènes complexes à l'interface frottante entre les plaquettes de frein et le disque. L'analyse de stabilité reste aujourd'hui la méthode privilégiée dans l'industrie pour prédire la stabilité d'un système de frein malgré ses aspects sur- et sous-prédictifs.Afin de construire un système de frein robuste, il est nécessaire de trouver la technologie qui permette de limiter les instabilités malgré certains paramètres incertains présents dans le système. A

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6

Dettmann, Aaron. "Loosely coupled, modular framework for linear static aeroelastic analyses." Thesis, KTH, Lättkonstruktioner, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262047.

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A computational framework for linear static aeroelastic analyses is presented. The overall aeroelasticity model is applicable to conceptual aircraft design studies and other low-fidelity aero-structural analyses. A partitioned approach is used, i. e. separate solvers for aerodynamics and structure analyses are coupled in a suitable way, together forming a model for aeroelastic simulations. Aerodynamics are modelled using the vortexlattice method (VLM), a simple computational fluid dynamics (CFD) model based on potential flow. The structure is represented by a three-dimensional (3D) Euler-Berno

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7

Makhlouf, Heba. "Essais virtuels pour l'industrie du meuble." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1164.

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Le travail s’inscrit dans le cadre d’une collaboration entre le Pôle Ameublement FCBA et le Laboratoire MSME de l’UPEM. L’objectif était de mettre au point un outil de simulation permettant à FCBA de mener une étude de validation (tenue aux tests normalisés) avant la fabrication du meuble. Ce travail était supporté par les fonds collectifs de la profession ameublement. Il a donné lieu à des développements dans le domaine de l’identification du comportement anisotrope du bois par analyse d’images couplée à la méthode des éléments finis, d’une approche multi-échelle pour identifier le comporteme

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8

Pablos, Rabano Alejandro. "Modeling of a PMSynRel stator with concentrated windings using FEM and non-linear reluctance networks." Thesis, KTH, Elektrisk energiomvandling, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-124543.

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Permanent magnets synchronous reluctance (PMSynRel) motors are attractive due to their high torque density and because a lower quantity of permanent magnets is necessary in comparison with other permanent magnet machines. This thesis deals with the analysis of PMSynRel machines using a finite element method (FEM) and reluctance networks. First, a PMSynRel machine model is built in order to carry out simulations using a finite element method package. The effect of different design parameters such as the combination of the number of poles and slots, the number of flux barriers or the number of m

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9

Alagbada, Adefemi Samuel. "Thermo-Mechanical Fatigue Assessment of Marine Boiler : Using linear Finite Element Analyses." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95439.

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This thesis is on fatigue crack growth assessments of a thermomechanical loaded Marine Boiler- Sunrod CPDB12. The installation position of the marine boiler in the ship in relation to its fatigue life under mode 1 loading is investigated. Thermomechanical loading embodies pressures, temperatures, RAO, subjected to the rigid body dynamic of ship in the marine environment. Linear elastic fracture mechanics (LEFM) method was used is predicting the growth rates of the welding flaws at the joint based on stress range of the Paris law relationship. FEA Numerical simulation delivered better crack g

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10

Selli, Nicola. "Static and seismic analysis of a historic masonry building in San Pio delle Camere." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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In February 2021, in San Pio delle Camere, on the Navelli plateau south-east of L'Aquila, a masonry building collapsed suddenly, after repair work had just begun on the damage caused by the 2009 earthquake. The current study, after a detailed examination of all the design documentation and the comparison of the post-earthquake damage with the results of the analysis on the model, finding an excellent correspondence, went to research the possible causes of the structural collapse, which occurred in static conditions. The masonry texture was then analysed, consisting of unworked natural stones o

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11

Polidori, Andrea. "Analisi numerica non lineare di un nodo trave colonna in conglomerato cementizio." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2623/.

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12

Amin, Handren. "A comparative study of 2 CAD-integrated FE-programs using the linear static analysis." Thesis, Halmstad University, School of Business and Engineering (SET), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2355.

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<p>This Master’s thesis is summery of a comparative study of 2 commercial CAD-integrated</p><p>FE-programs. These FE-programs were CATIA v5 and ABAQUS 6.3-7. The primary</p><p>objective of this study is to investigate the basic FEA capabilities of CATIA and</p><p>ABAQUS 6.7-3 in performing the linear static analysis and to identify whether there are</p><p>any differences and similarities between results the both Finite Element FE codes give.</p><p>The overall research question in the present thesis is: Do different FE programs, here</p><p>CATIA and ABAQUS, give the same results for FE analysis

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13

Desai, D. A. "Comparative non-linear simulation of temperature profiles induced in an exhaust manifold during cold-starting." Journal for New Generation Sciences, Vol 8, Issue 1: Central University of Technology, Free State, Bloemfontein, 2010. http://hdl.handle.net/11462/549.

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Published Article<br>The simulation of an exhaust manifold's thermal behaviour is an important concern for various reasons. Amongst them is the need to minimise catalyst light-offtime as significant exhaust emissions are generated within this period. Modelling such behaviour is not simplistic as it is governed by complex interactions between exhaust gas flow and the manifold itself. Computational fluid dynamics (CFD) is a powerful tool for such simulations. However its applicability for transient simulations is limited by high central processing unit (CPU) demands. The present study proposes a

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Yan, Charlotte. "Vaildation of nonlinear FE-simulation for design improvement." Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-114592.

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The aim of the project is to develop a model, which is going to be used for mass reduction of a standard profile of aluminium seat rails in Aircraft structure. Using nonlinear analysis including plasticity and material failure laws the effect of changes in geometry vs. ultimate load is analysed (ABAQUS 6.11). First, the non-linear model used is validated with experimental testing: Boundary conditions and material properties are adjusted based on load displacement curves, strain gauges information and failure patterns. Less than 1% deviation is achieved between simulation and testing. An inclus

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15

Jonsson, Karl. "Two Problems in non-linear PDE’s with Phase Transitions." Licentiate thesis, KTH, Matematik (Avd.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223562.

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This thesis is in the field of non-linear partial differential equations (PDE), focusing on problems which show some type of phase-transition. A single phase Hele-Shaw flow models a Newtoninan fluid which is being injected in the space between two narrowly separated parallel planes. The time evolution of the space that the fluid occupies can be modelled by a semi-linear PDE. This is a problem within the field of free boundary problems. In the multi-phase problem we consider the time-evolution of a system of phases which interact according to the principle that the joint boundary which emerges

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16

Di, Fabrizio Vincenzo. "Modellazione e analisi non lineare del degrado artificiale di un prototipo di edificio in muratura in scala reale." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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La tesi pone l’attenzione sulla modellazione di un edificio in muratura da sottoporre a prove di laboratorio. In particolare, sono state eseguite analisi modali e non lineari per determinare l’influenza sugli elementi in muratura di alcune forme di degrado imposte, quali sovraccarichi, grado di ammorsamento della muratura, assenza di tiranti e cedimento differenziale della fondazione. I risultati ottenuti attraverso le analisi modali mostrano una notevole riduzione della rigidezza del sistema. Il cedimento differenziale imposto porta ad una concentrazione dello stato tensionale nelle fasce di

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17

Singh, Subrat, and Shreedhara Sreehari Veditherakal. "CAE modelling of cast aluminium in automotive structures." Thesis, Linköpings universitet, Mekanik och hållfasthetslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-162190.

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In the automobile industry, there is a big push for the automotive car manufacturers to base engineering decisions on the results of Computer Aided Engineering (CAE) solutions, and to transform the prototyping and testing, from a costly iterative process to a final verification and validation step. The variability in components material properties and environmental conditions together with the lack of knowledge about the underlying physics of complex systems often make it impractical to make reliable predictions based on only deterministic CAE models. One such area is the CAE modelling of cast

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18

Ferrari, Rosalba (ORCID:0000-0002-3989-713X). "An elastoplastic finite element formulation for the structural analysis of Truss frames with application to ha historical iron arch bridge." Doctoral thesis, Università degli studi di Bergamo, 2013. http://hdl.handle.net/10446/28959.

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This doctoral thesis presents a structural analysis of the Paderno d’Adda Bridge, an impressive iron arch viaduct built in 1889 and located in Lombardia region (Italy). The thesis falls in the context of a research activity started at University of Bergamo since 2005, that is still ongoing and aims to perform an evaluation of the present state of conservation of the bridge. In fact, the bridge is currently still in service and its important position in the context of transport network will soon lead to questions about its future destination, with particular attention to the evaluation of the

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19

Virgulto, Giorgio. "Valutazione delle potenzialità del BIM per analisi di loss assessment sismico." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Obiettivo del presente lavoro di Tesi sarà quello di integrare e semplificare la valutazione delle perdite sismiche in accordo con la normativa FEMA P-58 con la metodologia del Building Information Modeling. La FEMA P-58 è la normativa di riferimento per la valutazione delle perdite indotte su un edificio da un evento sismico (loss assessment) proponendo una metodologia in grado di quantificare le prestazioni dell’edificio in termini di vittime, costi di riparazione, tempi di riparazione e impatto ambientale. La metodologia BIM consente di generare un modello virtuale contenente le informazion

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20

Ptáček, Petr. "Termálně-strukturální analýza válce čtyřdobého spalovacího motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254374.

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This diploma thesis is focused on creating a finite element method model of a four-stroke engine with a purpose to determine an impact on cylinder bore distortion caused by several types of loading. Introduction of this work covers research of possibilities in modelling thermal-structural analysis of cylinder liner and verifications of the analysis results. An Ansys model was further created and cylinder liner radial deformation caused by head bolts tightening and thermal loading coming from combustion was determined. Finally, a whole engine working cycle was simulated with a gas pressure load

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21

Lonzi, Giuditta. "La cupola del Duomo di Siena: ricerca storica, analisi costruttiva e modellazione strutturale tramite FEA finalizzate alla comprensione del comportamento statico." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16541/.

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Il centro storico di Siena, iscritto nella Lista Patrimonio Mondiale dell’UNESCO, è soggetto ad una forte contaminazione ambientale da cui deve essere necessariamente protetto e conservato in funzione del valore storico ed estetico che rappresenta. La vetustà del patrimonio architettonico comporta la necessità di uno studio approfondito del singolo edificio e la comprensione delle particolari tecniche costruttive antiche al fine di una corretta interpretazione del comportamento strutturale per l’elaborazione di efficaci strategie di prevenzione. Questa tesi di laurea vuole approcciarsi nel s

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22

Pham, Anh Tu. "Détermination numérique des propriétés de résistance de roches argileuses." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1237/document.

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Les capacités de résistance de l'argilite Callovo-Oxfordian (COx), qui est une roche hôte potentielle pour le dépôt souterrain profond de déchets radioactifs de haute activité en France, sont étudiées. À une échelle microscopique, des micros pores peuvent être observés dans la matrice. Une première étape d'homogénéisation a été réalisée afin d'évaluer le critère de résistance de la matrice. L'analyse microstructurale de ce matériau à quelques centaines d'échelle, référencée échelle échelle mésoscopique, montre une matrice argileuse et une distribution aléatoire d'inclusions minérales (quartz e

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23

Jindra, Daniel. "Stanovení požární odolnosti konstrukcí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392030.

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Possibilities of modeling non-linear behavior of concrete within standard room temperatures and increased fire-load values using FEM software ANSYS are studied. Temperature dependences of material models are considered. Fire resistance of reinforced concrete and concrete-steel composite construction is analyzed. Fire loads are defined in accordance with relevant standards. Non-linear structural transient analyses are calculated after temperatures were determined by transient thermal analyses. Results obtained from analyses of simple reinforced concrete structure are compared with approach of i

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24

Marchionni, Elianires. "Valutazione del rischio sismico di un edificio strategico destinato a sede della di.coma.c di Parma." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Una delle principali prerogative nell’ambito della protezione civile è lo studio e l’analisi del rischio sismico. Non è possibile prevedere tali eventi né tanto meno evitare che si verifichino, tutto ciò che si può fare e garantire una sicurezza adeguata e ridurre considerevolmente il fattore di rischio. La pianificazione dell’emergenza rappresenta una delle strategie principali per mitigare gli effetti di un evento sismico. Il seguente lavoro svolge un analisi in ambito lineare dinamico e in ambito statico non lineare valutando le zone di criticità e gli indici di rischio sismico di un edif

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25

Pavelka, Roman. "Hydraulické posunovače." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229740.

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This diploma thesis deals with the mechanical proposal of hydraulic puller. Furthermore, it includes the detail design solutions. The project also includes the calculation of the hydraulic puller parameters: maximum pushing force is 60 kN, speed of movement is 0.1 m s-1. This work also contains of stress analysis FEM with I-DEAS software. Following part deals with the design of hydraulic circuit for driving puller. At the end of work there are options for replacements of hydraulic puller by mechanical systems.

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26

Moro, Lorenzo. "Structure borne noise due to marine diesel engines: experimental study and numerical simulation for the prediction of the dynamic behaviour of resilient mounts." Doctoral thesis, Università degli studi di Trieste, 2015. http://hdl.handle.net/10077/11114.

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2013/2014<br>Gli alti livelli di comfort che sono richiesti oggigiorno a bordo di navi da crociera e mega-yachts, portano i progettisti a concentrare la loro attenzione sul problema del rumore strutturale. I motori diesel quattro tempi che sono installati a bordo nave come motori principali o diesel generatori, sono tra le principali sorgenti di rumore strutturale. Per questa ragione, al fine di ridurre l’energia vibrazionale generata da queste sorgenti e trasmessa, tramite le strutture nave, ai locali alloggio, i motori diesel sono sospesi mediante elementi resilienti. Tali elementi resilient

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27

Baldazzi, Michele. "Modello dinamico di un motore tubolare sincrono a magneti permanenti." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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L’attività di tesi ha riguardato la definizione di un modello dinamico per la rappresentazione del motore tubolare trifase sincrono a magneti permanenti che, in prima approssimazione, è solitamente considerato analogo a quello delle macchine rotanti. Il suo ottenimento è stato raggiunto partendo da un modello matematico per un motore tubolare trifase a magneti permanenti generico. Successivamente, mediante l’utilizzo di FEMM, è stato possibile, con opportune simulazioni, caratterizzare il comportamento elettromagnetico di una macchina tubolare specifica e realistica, realizzata con opportuni

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Pecorella, Daniele. "Methodology for the design and optimization of a morphing wing droop-nose structure for greener aircraft." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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Droop-Nose Leading Edge (DNLE) morphing wings are one of the most promising devices in order to achieve aerodynamic drag and noise reduction during take-off and landing phases. An accurate design of these structures could lead to the decrease of aircraft fuel consumption in the perspective of reaching a greener aviation, following the objectives indicated by Flightpath 2050 issued by the E.U. However, due to the challenges related to the realization of this technology and TRL reached, DNLE are more likely implemented in Unmanned Aerial Systems (UAS) for testing and evaluation purposes. In the

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Baldanza, Chiara. "Modellazione di dettaglio di un sistema innovativo di rinforzo esterno per il miglioramento sismico degli edifici senza interruzione d’uso." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20722/.

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Lo scopo della tesi è quello di ideare e validare un sistema innovativo di rinforzo esterno dei fabbricati basato sull’utilizzo di casseforme coibentanti in polistirene con armature metalliche integrate, getti di calcestruzzo e relativi sistemi di collegamento alle strutture portanti dell’edificio esistente. Il vantaggio nell’utilizzo di queste tecnologie risiede principalmente nella possibilità di messa in opera del rinforzo per fasi successive senza una significativa interruzione d’uso della costruzione e con tempi di messa in opera relativamente ridotti. In particolare, il tema della tesi

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Mussoni, Giacomo. "Progettazione di un sistema innovativo di rinforzo esterno per il miglioramento sismico degli edifici senza interruzione d’uso." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20757/.

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Il presente elaborato di tesi rientra nel progetto regionale TimeSafe,il quale prevede lo sviluppo di tecnologie integrate ed innovative a limitato impatto ed invasività per il miglioramento sismico di edifici senza interruzione d’uso. In particolare, lo scopo dell’elaborato di tesi è quello di studiare l’interazione fra una struttura esistente e un sistema innovativo di rinforzo esterno basato sull'utilizzo di casseforme coibentanti in polistirene con armature metalliche integrate, elementi in calcestruzzo gettato e proiettato e relativi sistemi di collegamento. Si vuole inoltre capire se

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Suárez, Sergio Andrés Pardo. "Análise numérica de barras gerais 3D sob efeitos mecânicos de explosões e ondas de choque." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-07032017-103309/.

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O presente trabalho consiste no uso do Método dos Elementos Finitos (MEF) para a análise de interação fluido-estruturas de barras com foco em problemas transientes envolvendo explosões ou outras ações com propagação de ondas de choque. Para isso é necessário o estudo de três diferentes aspectos: a dinâmica das estruturas computacional, a dinâmica dos fluidos computacional e o problema do acoplamento. No caso da dinâmica das estruturas computacional deve-se identificar em função da cinemática de deformações, quais são os requisitos para que um elemento seja adequado para analisar tais problemas

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32

Bringmann, Philipp. "Adaptive least-squares finite element method with optimal convergence rates." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/22350.

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Die Least-Squares Finite-Elemente-Methoden (LSFEMn) basieren auf der Minimierung des Least-Squares-Funktionals, das aus quadrierten Normen der Residuen eines Systems von partiellen Differentialgleichungen erster Ordnung besteht. Dieses Funktional liefert einen a posteriori Fehlerschätzer und ermöglicht die adaptive Verfeinerung des zugrundeliegenden Netzes. Aus zwei Gründen versagen die gängigen Methoden zum Beweis optimaler Konvergenzraten, wie sie in Carstensen, Feischl, Page und Praetorius (Comp. Math. Appl., 67(6), 2014) zusammengefasst werden. Erstens scheinen fehlende Vorfaktoren proport

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33

Larisch, Lukas. "Three-dimensional Modeling and Simulation of a Tuning Fork." Thesis, 2018. http://hdl.handle.net/10754/628716.

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The mathematical characterization of the sound of a musical instrument still follows Schumann’s laws [1]. According to this theory, the resonances of the instrument body, “the formants”, filter the oscillations of the sound generator (e.g., strings) and produce the characteristic “timbre” of an instrument. This is a strong simplification of the actual situation. It applies to a point source and does not distinguish between a loudspeaker and a three-dimensional instrument. In this work we investigate Finite-Element-based numerical simulations of eigenfrequencies and eigenmodes of a tuning fork

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34

Dediyagala, Nithila. "Optical Fibre Bragg Grating Analysis Through FEA and its Application to Pressure Sensing." Thesis, 2019. https://vuir.vu.edu.au/39484/.

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The focus of this thesis is developing optical fibre Bragg grating (FBG) pressure sensors with enhanced sensitivity for use in a low (gauge) pressure range (0 - 50 kPa) together with understanding observed non-linear behaviour. To appreciate the behaviour of FBG sensor spectra, it is necessary to understand geometrical and material properties of FBGs. The thesis is an in-depth investigation of the behaviour of FBGs including their manufacturing and fabrication process details. A new computational approach has been introduced to simulate FBG structures based on how the FBG fabrication process p

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Uplekar, Amruta Shrikant. "Structural characterization and analysis of the Castle of Arbeteta, Spain." Master's thesis, 2019. http://hdl.handle.net/1822/62322.

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Dissertação de mestrado em Structural Analysis of Monuments and Historical Construction<br>The Castle of Arbeteta, Guadalajara (Spain) is strategically located on top of the cliff rocks with a drawbridge as its only entrance. The castle has undergone various changes in over the time of centuries. It was once a two storey structure, of which only the ruins of the external walls exist. The castle is in a continuous state of degradation due to abandonment. Currently, there is an ongoing intervention project where a new use is going to be given to the castle. This will inevitably alter the curren

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Allahvirdizadeh, Reza. "Modelling of the seismic behaviour of TRM-strengthened rammed earth walls." Master's thesis, 2017. http://hdl.handle.net/1822/54582.

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Dissertação de mestrado em Structural Analysis of Monuments and Historical Constructions<br>Earthen constructions constitute a considerable part of the existing heritage and a large percentage of the World population is still living or working in buildings built with this structural system. Like other types of masonry structures, rammed earth constructions are acceptably stable under gravity loads, although they are significantly vulnerable to earthquakes. Therefore, a precise understanding of their behavior in case of being subjected to ground motions and the proposing of effective streng

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Azil, chima. "Essai d’élaboration d’une démarche méthodologique de diagnostic sur les coupoles du Souf en Algérie." Doctoral thesis, 2022. http://hdl.handle.net/2158/1256035.

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Nelle oasi della regione di Souf in Algeria si è sviluppata nel corso dei secoli una tecnica costruttiva molto particolare e quasi sconosciuta, che ha consentito la crescita di architetture vernacolari uniche poste nella "Lista tentativi dell'UNESCO", come patrimonio diffuso prezioso. L'architettura di questa zona desertica si basa sull'uso di un materiale da costruzione insolito, la pietra Rosa del deserto, ed è caratterizzato da coperture a cupola, che descrivono un paesaggio urbano unico e sorprendente che merita protezione e valorizzazione. Attualmente, i centri urbani di questa zona sono

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(7847843), Rahul Deshmukh. "Influence of geometry and placement configuration on side forces in compression springs." Thesis, 2019.

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<div>A leading cause of premature failure and excessive wear and tear in mechanical components that rely on compression springs for their operation is the development of unwanted side forces when the spring is compressed.</div><div>These side forces are usually around 10% - 20% of the magnitude of the axial load and point in different directions in the plane perpendicular to the axis of the spring.</div><div>The magnitude and direction of the resultant of side forces varies very non-linearly and unpredictably even though the axial force behavior of the spring is very consistent and predictable

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