Log in

Relevant bibliographies by topics / Constitutive Model / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Constitutive Model.

Dissertations / Theses on the topic 'Constitutive Model'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Constitutive Model.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Adi, Riyono Winarputro. "CJS-RE : a hierarchical constitutive model for rammed earth." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEC036/document.

Full text

Abstract:

Le pisé est une technique constructive vernaculaire consistant à compacter successivement des couches de terre humide entre des coffrages. Cette technique, présente dans le monde entier, l'est en particulier en France dans la région Auvergne-Rhône-Alpes. Comme il n'existe pas de réglementation attachée à cette technique constructive, il est très difficile pour des propriétaires de réparer leur bien. Le développement de cette technique pour de nouveaux projets souffre aussi de cette absence alors qu'elle répond à certains enjeux posés par le Développement Durable. Le travail présenté ici fait p

APA, Harvard, Vancouver, ISO, and other styles

2

Kelln, Curtis Gerald. "An elastic-viscoplastic constitutive model for soil." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491999.

Full text

Abstract:

The concepts of elasticity and viscoplasticity were used to develop an elastic-viscoplastic (EVP) constitutive model for soil. The mathematical description of viscoplastic straining includes a measure of both effective stress and the corresponding volumetric packing of the soil particles. The model is able capture the dependence of stress-strain relationships and undrained shear strength on strain rate, the development of irrecoverable plastic strains at constant stress, which is creep, and the relaxation of stresses at constant strain. A Newton-Raphson solution scheme with a stress point algo

APA, Harvard, Vancouver, ISO, and other styles

3

SIMOES, LEONARDO CRAVEIRO. "A CONSTITUTIVE MODEL FOR FIBER REINFORCED CONCRETE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1998. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=1511@1.

Full text

Abstract:

COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Nos últimos 40 anos, tem-se observado um crescente interesse por compósitos formados pela adição de fibras a matrizes de concreto, os chamados concretos reforçados com fibras. Esse interesse é justificado, sobretudo, pelo significativo ganho em tenacidade que as fibras proporcionam, atenuando as características frágeis do concreto. De fato, em virtude do mecanismo de reforço promovido pelas fibras, o concreto com fibras é capaz de absorver muito mais energia de deformação até a ruptura, apresentando, no regime pós-fissura

APA, Harvard, Vancouver, ISO, and other styles

4

Kim, Se-Hyung. "Cyclic Uniaxial Constitutive Model For Steel Reinforcement." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/51241.

Full text

Abstract:

Reinforced Concrete (RC) structures are common in earthquake-prone areas. During an earthquake, the steel reinforcement is subjected to cyclic strain histories which lead to inelastic response. In the case of rare, strong earthquakes, inelastic buckling and even rupture due to low-cycle fatigue can also occur. The understanding and characterization of the performance of RC structures under earthquake hazards requires the accurate simulation of the inelastic hysteretic behavior of steel reinforcement by means of appropriate constitutive models. Several uniaxial material models have been develo

APA, Harvard, Vancouver, ISO, and other styles

5

Babbepalli, Venkata Venu Sai Phani Ram. "Implementation of moisturedependent constitutive model for paperboard." Thesis, KTH, Hållfasthetslära, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284356.

Full text

Abstract:

There has been a considerable increase in the usage of paper products due to its sustainability in the product cycle. Many environmental and process variables can affect the mechanical behavior of paper from its making to finished products. Of these variables, moisture is of particular importance and strongly influences both papermaking, converting, and end-use of the paper products. Experimental investigations at different humidity levels reveals that normalized in-plane constitutive parameters, such as elastic parameters and the linear hardening modulus, in both MD and CD1) follow a linear r

APA, Harvard, Vancouver, ISO, and other styles

6

Chen, Cheng-Wei. "A constitutive model for fiber-reinforced soils." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4768.

Full text

Abstract:

Thesis (Ph. D.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Typescript. Vita. Title from title screen of research.pdf file (viewed on March 6, 2009) Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

7

Mei, Zhu. "Structural hybrid simulation with model updating of material constitutive model." Doctoral thesis, Università degli studi di Trento, 2018. https://hdl.handle.net/11572/368550.

Full text

Abstract:

When hybrid simulation (HS) with substructures is employed for assessing the seismic behavior of a large complex structure, it is unrealistic to test all the components that may exhibit strong nonlinearity. Hence, the accuracy of the numerical substructure (NS) faces an increased challenge. To this end, this paper will emphasize on improving the accuracy of the NS in hybrid simulation based on the model updating approach. Most hybrid simulations with model updating (UHS) focus on updating the parameters of the component constitutive model (story shear model) leading to large modeling errors an

APA, Harvard, Vancouver, ISO, and other styles

8

Mei, Zhu. "Structural hybrid simulation with model updating of material constitutive model." Doctoral thesis, University of Trento, 2018. http://eprints-phd.biblio.unitn.it/2959/1/TESI_ZHU_MEI.pdf.

Full text

Abstract:

When hybrid simulation (HS) with substructures is employed for assessing the seismic behavior of a large complex structure, it is unrealistic to test all the components that may exhibit strong nonlinearity. Hence, the accuracy of the numerical substructure (NS) faces an increased challenge. To this end, this paper will emphasize on improving the accuracy of the NS in hybrid simulation based on the model updating approach. Most hybrid simulations with model updating (UHS) focus on updating the parameters of the component constitutive model (story shear model) leading to large modeling errors an

APA, Harvard, Vancouver, ISO, and other styles

9

Junior, Wanderley Camargo Russo. "Desenvolvimento de um modelo hipoplástico que represente efeitos do sobreadensamento." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3145/tde-19092006-170548/.

Full text

Abstract:

São propostas modificações em um modelo hipoplástico buscando representar o comportamento mecânico de argilas sobreadensadas. São introduzidos no modelo a razão de sobreadensamento, o intercepto de coesão e índices que representam características do trecho sobreadensado, resultando em parâmetros com claro sentido físico e de fácil determinação. A equação constitutiva é então calibrada com parâmetros de solos sobreadensados e a capacidade dos modelos de representar o comportamento de dois solos em particular é verificada, confrontando as previsões teóricas com resultados experimentais em divers

APA, Harvard, Vancouver, ISO, and other styles

10

Pisoni, Attilio C. (Attilio Carlo). "A constitutive model for friction in metal-working." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12620.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Su, Cheng Ph D. Massachusetts Institute of Technology. "A continuum constitutive model for amorphous metallic materials." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/38928.

Full text

Abstract:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.<br>Includes bibliographical references (leaves 153-161).<br>A finite-deformation, Coulomb-Mohr type constitutive theory for the elastic-viscoplastic response of pressure-sensitive and plastically-dilatant isotropic materials has been developed. The constitutive model has been implemented in a finite element program, and the numerical capability is used to study the deformation response of amorphous nietallic glasses. Specifically, the response of an amorphous metallic glass in tension, compression, s

APA, Harvard, Vancouver, ISO, and other styles

12

Pestana-Nascimento, Juan Manuel. "A unified constitutive model for clays and sands." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/11724.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Reed, Philip Edward 1959. "A variable moduli probabilistic constitutive model for soils." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276754.

Full text

Abstract:

Measurement of stress - strain relationships in soil systems usually incorporate varying degrees of uncertainty. These uncertainties arise from laboratory testing mechanisms, sampling disturbances, errors performed by operators or technicians performing the tests, etc. Currently, deformation analyses have been modeled using several deterministic techniques. However, because of the uncertainties involved, there is a need to adapt these numerical methods into probabilistic models. This thesis develops a probabilistic constitutive model based on a variable moduli deterministic technique. First-or

APA, Harvard, Vancouver, ISO, and other styles

14

James, Christopher James. "AN ANISOTROPIC CONSTITUTIVE MODEL FOR NUCLEAR GRADE GRAPHITE." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1544027689571583.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Shafieian, Mehdi. "Toward a Universal Constitutive Model for Brain Tissue." Diss., Temple University Libraries, 2012. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/204511.

Full text

Abstract:

Mechanical Engineering<br>Ph.D.<br>Several efforts have been made in the past half century to characterize the behavior of brain tissue under different modes of loading and deformation rates; however each developed model has been associated with limitations. This dissertation aims at addressing the non-linear and rate dependent behavior of brain tissue specially in high strain rates (above 100 s-1) that represents the loading conditions occurring in blast induced neurotrauma (BINT) and development of a universal constitutive model for brain tissue that describes the tissue mechanical behavior

APA, Harvard, Vancouver, ISO, and other styles

16

Liu, Rui. "A unified constitutive material model with application to machining." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53097.

Full text

Abstract:

Finite element simulation of metal cutting processes offers a cost-effective method to optimize the cutting conditions and to select the right tool material and geometry. A key input to such simulations is a constitutive model that describes material behavior during severe plastic deformation. However, the vast majority of material models used in prior work are phenomenological in nature and are usually obtained by fitting a non-physically based mathematical equation to the macro-scale stress-strain response of the material. Moreover, the deformation range covered by the stress-strain response

APA, Harvard, Vancouver, ISO, and other styles

17

Laranjeira, de Oliveira Filipe. "Design-oriented constitutive model for steel fiber reinforced concrete." Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/6174.

Full text

Abstract:

En los últimos años la industria viene exigiendo el empleo del hormigón reforzado con fibras de acero (HRFA) en aplicaciones estructurales. Debido al hecho de que la resistencia pos-fisuración del material es relevante, la capacidad de coser fisuras concedida por las fibras puede permitir la sustitución, parcial o total, de la armadura de acero convencional. Por consiguiente, una adecuada caracterización del comportamiento a tracción uniaxial del HRFA es de gran interés. Sin embargo, a pesar de la amplitud de trabajo de investigación y de la reciente elaboración de normativas, no existe un con

APA, Harvard, Vancouver, ISO, and other styles

18

Kiefer, Bjoern. "A phenomenological constitutive model for magnetic shape memory alloys." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4712.

Full text

Abstract:

A thermodynamics-based constitutive model is derived which predicts the nonlinear strain and magnetization response that magnetic shape memory alloys (MSMAs) exhibit when subjected to mechanical and magnetic loads. The model development is conducted on the basis of an extended thermo-magneto-mechanical framework. A novel free energy function for MSMAs is proposed, from which the constitutive equations are derived in a thermodynamically-consistent manner. The nonlinear and hysteretic nature of the macroscopic material behavior is captured through the evolution of internal state variables which

APA, Harvard, Vancouver, ISO, and other styles

19

Mandel, Ulrich [Verfasser]. "Mechanism Based Constitutive Model for Composite Laminates / Ulrich Mandel." München : Verlag Dr. Hut, 2018. http://d-nb.info/1153254220/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Qiu, Yi. "An investigation into the microplane constitutive model for concrete." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311813.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

GONDHALEKAR, ROHIT H. "A CONSTITUTIVE MODEL FOR NANOSTRUCTURES BASED ON SPATIAL SECANT." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1120144896.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Romero, Ricardo J. "Development of a constitutive model for fiber-reinforced soils /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3115585.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Tenev, Tichomir G. "An Elastic Constitutive Model of Spacetime and Its Applications." Thesis, Mississippi State University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10978458.

Full text

Abstract:

<p> We introduce an elastic constitutive model of gravity that enables the interpretation of cosmological observations in terms of established ideas from Solid Mechanics and multi-scale modeling. The behavior of physical space is identified with that of a material-like medium called "cosmic fabric," which exhibits constitutive behavior. This cosmic fabric is a solid hyperplate that is broad in the three ordinary spatial dimensions and thin in a fourth hyperspatial dimension. Matter in space is treated as fabric inclusions that prescribe in-plane (three-dimensional) strain causing the transvers

APA, Harvard, Vancouver, ISO, and other styles

24

Holmes, David William. "Aspects of finite strain constitutive model for semicrystalline polymers." Thesis, James Cook University, 2007. https://eprints.qut.edu.au/109545/1/HolmesPhDThesis.pdf.

Full text

Abstract:

In this thesis, the development of a constitutive model for the finite strain deformation of semicrystalline polymers is presented. It reports on the formulation and numerical implementation of the model and the theoretical aspects of the associated experimental testing and parameter estimation. Within both academia and industry to date, there exists no single constitutive model for semicrystalline polymers that is broadly accepted as representing the general case. This is in spite of the relatively complete scientific understanding of the material's response and the increasing use of such

APA, Harvard, Vancouver, ISO, and other styles

25

Tsoi, Wa Yeung. "Constitutive model development for lightly cemented scrap rubber tire chips /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20TSOI.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Wang, Shun-sheng. "Development of constitutive model for AL-2011 in mushy state." Ohio : Ohio University, 1994. http://www.ohiolink.edu/etd/view.cgi?ohiou1174224280.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Sun, Wenxian. "A dual constitutive communication-based model for managerial practice diffusion." Thesis, University of Hull, 2009. http://hydra.hull.ac.uk/resources/hull:2676.

Full text

Abstract:

In the current research of managerial practice diffusion, discussions on how to understand and manage diffusion changes have been made primarily by drawing on institutional, rhetorical and systems theories for the reason that each of them seems to suggest a “mechanism” for diffusion. For instance, institutional theory suggests that diffusion is a changing process during which an organisation will continuously adapt itself to the outside environment in order to keep itself survival. Based on a rhetorical perspective, for which rhetoric plays an important role in diffusion, the achievement of a

APA, Harvard, Vancouver, ISO, and other styles

28

Nikolinakou, Maria-Aikaterini 1976. "A constitutive model for the compression behavior of Old Alluvium." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44291.

Full text

Abstract:

Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2008.<br>Includes bibliographical references.<br>Old Alluvium is classified as a transported, in-situ weathered tropical soil, and represents a class of geomaterials that have a complex microstructure, including cemented aggregates at the meso-scale and groups of clay stacks at the micro-scale. Despite the presence of significant fractions of nontronite (smectite species), the activity of charged clay particles is initially masked by the aggregation of iron oxides. Compression loading breaks t

APA, Harvard, Vancouver, ISO, and other styles

29

Hickman, Randall John. "Formulation and Implementation of a Constitutive Model for Soft Rock." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/29000.

Full text

Abstract:

Petroleum reservoirs located in the Norwegian sector of the North Sea have undergone unexpected subsidence of great magnitude (> 10 m) during more than 30 years of petroleum recovery operations. Historical laboratory investigations have shown that the subsidence is due to the mechanical behavior and mechanical properties of chalk. Chalk behavior is characterized by elastoplasticity, including pore collapse, shear failure, and tensile failure mechanisms; rate-dependence; and pore fluid dependence. The research described in this dissertation was performed with the objectives to formulate a const

APA, Harvard, Vancouver, ISO, and other styles

30

Kacker, Shubhra. "The Role of Constitutive Model in Traumatic Brain Injury Prediction." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1563874757653453.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Saavedra, Flores Erick Isaac. "Computational multi-scale constitutive model for wood cell-wall mechanics." Thesis, Swansea University, 2011. https://cronfa.swan.ac.uk/Record/cronfa43160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Zhang, Bo. "Constitutive modelling of municipal solid waste." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/7984.

Full text

Abstract:

Design of landfills must consider both stability and integrity of the lining system. Therefore, stresses and strains in both mineral and geosynthetic lining materials must be controlled. Interaction between waste and barrier system is of particular importance for assessing the stability and structural integrity of steep non-self supporting barrier systems. The most appropriate approach to assess the interaction is the use of numerical modelling techniques, and therefore an appropriate constitutive model for waste material is required to represent its mechanical behaviour. In a literature revie

APA, Harvard, Vancouver, ISO, and other styles

33

Venkatasubramaniam, Shyam. "Constitutive Modeling of Poly(Ethylene Terephthalate)." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417444300.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Phillips, Peter Louis. "Integrated Multiaxial Experimentation and Constitutive Modeling." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1492598070791388.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

García, Fernández Víctor Gerardo. "Constitutive relations to model the hot flow of commercial purity copper." Doctoral thesis, Universitat Politècnica de Catalunya, 2004. http://hdl.handle.net/10803/6043.

Full text

Abstract:

Se ha llevado a cabo un estudio con el fin de observar diferencias en el comportamiento de fluencia en caliente de los cobres refinados al fuego con una pureza de 99.9%, dicho estudio ha permitido proponer modelos para predecir la curva esfuerzo-deformación y para predecir el tamaño de grano recristalizado dinámicamente. Los cobres refinados al fuego con una pureza de 99.9% se caracterizan por tener una composición residual de varios otros elementos, en algunos casos hasta 1000ppm. En los cobres con por lo menos 99.9% de pureza que tengan pocos elementos residuales, las diferencias observada

APA, Harvard, Vancouver, ISO, and other styles

36

Shepherd, James Ellison. "An internal state variable based constitutive model for semi-crystalline polymers." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17638.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Stewart, Calvin. "A Hybrid Constitutive Model For Creep, Fatigue, And Creep-Fatigue Damage." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6023.

Full text

Abstract:

In the combustion zone of industrial- and aero- gas turbines, thermomechanical fatigue (TMF) is the dominant damage mechanism. Thermomechanical fatigue is a coupling of independent creep, fatigue, and oxidation damage mechanisms that interact and accelerate microstructural degradation. A mixture of intergranular cracking due to creep, transgranular cracking due to fatigue, and surface embrittlement due to oxidation is often observed in gas turbine components removed from service. The current maintenance scheme for gas turbines is to remove components from service when any criteria (elongation,

APA, Harvard, Vancouver, ISO, and other styles

38

Hogan, Erik A. "An efficient method for the optimization of viscoplastic constitutive model constants." Honors in the Major Thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1274.

Full text

Abstract:

This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Engineering and Computer Science<br>Aerospace Engineering

APA, Harvard, Vancouver, ISO, and other styles

39

Brown, Stuart Bryan. "An internal variable constitutive model for the hot working of metals." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14824.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Wang, Shun-Sheng. "Development of constitutive model for Al-2011 alloy in mushy state." Ohio University / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1174224280.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Kim, Dong-Gyou. "Development of a constitutive model for resilient modulus of cohesive soils." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1078246971.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Rajasekaran, Nepolean. "A Nonlinear Constitutive Model for High Density Polyethylene at High Temperature." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298041213.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Wiseman, K. H. "Development of a constitutive model for a heaving clay from Rosebank." Master's thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/8452.

Full text

Abstract:

Bibliography: leaves 135-142.<br>Heaving clays are partially saturated soils composed of a high fraction of the montmorillonite clay mineral. When exposed to free water they undergo volumetric expansion, which often results in differential movements at the surface and damage to building structures founded on the clay. The economic consequences of such damage is severe. Heaving clay causes in excess of R100 million damage in South Africa each year, making it the country's most significant problem soil. The best method of dealing with a heaving clay is through appropriate design. This would be f

APA, Harvard, Vancouver, ISO, and other styles

44

Abdelal, Gasser F. "A three-phase constitutive model for macrobrittle fatigue damage of composites." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1485.

Full text

Abstract:

Thesis (Ph. D.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains xiii, 183 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 180-183).

APA, Harvard, Vancouver, ISO, and other styles

45

Kim, Dong Gyou. "Development of a constitutive model for resilient modulus of cohesive soils." Columbus, Ohio : Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078246971.

Full text

Abstract:

Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xxvi, 252 p.; also includes graphics. Includes abstract and vita. Co-advisors: Frank M. Croft and Tarunja S. Batalia, Dept. of Civil Engineering. Includes bibliographical references (p. 122-131).

APA, Harvard, Vancouver, ISO, and other styles

46

Clarke, Samuel David. "Enhancement of the Brick constitutive model to incorporate viscous soil behaviour." Thesis, University of Sheffield, 2009. http://etheses.whiterose.ac.uk/158/.

Full text

Abstract:

The Brick model is an advanced elasto-plastic constitutive model for soils and has become a recognised tool for modelling ground behaviour, following its implementation into the finite element program Safe. The model can reproduce many essential elements of soil behaviour, which is viewed from a strain-based perspective. An analogue for the model is that of a man walking around a room, pulling a number of bricks with strings of different lengths behind him. The room represents strain space, the man's movement is the applied strain and each brick movement is the response of a proportion of the

APA, Harvard, Vancouver, ISO, and other styles

47

Madaschi, Aldo. "A nonlinear viscoplastic double yield surface constitutive model for geologic materials." Doctoral thesis, Università degli studi di Trento, 2015. https://hdl.handle.net/11572/369021.

Full text

Abstract:

A new constitutive model is proposed to describe the stress-strain-time behaviour of clays and organic soils. This approach is based on the framework of overstress viscoplastic theory and can be applied to any elastoplastic (inviscid) model.The most innovative idea of the proposed model is the identification of two components of strain for each deformation mechanism. In particular, in both the elastic and the plastic regimes a fast and a slow strain mechanism are assumed to be present. To this aim the constitutive model is based on two yield surfaces based on overstress viscoplasticity theory:

APA, Harvard, Vancouver, ISO, and other styles

48

Madaschi, Aldo. "A nonlinear viscoplastic double yield surface constitutive model for geologic materials." Doctoral thesis, University of Trento, 2015. http://eprints-phd.biblio.unitn.it/1513/1/Aldo_Madaschi_B5.pdf.

Full text

Abstract:

A new constitutive model is proposed to describe the stress-strain-time behaviour of clays and organic soils. This approach is based on the framework of overstress viscoplastic theory and can be applied to any elastoplastic (inviscid) model.The most innovative idea of the proposed model is the identification of two components of strain for each deformation mechanism. In particular, in both the elastic and the plastic regimes a fast and a slow strain mechanism are assumed to be present. To this aim the constitutive model is based on two yield surfaces based on overstress viscoplasticity theory:

APA, Harvard, Vancouver, ISO, and other styles

49

Dabeet, Antone E. "A practical model for load-unload-reload cycles on sand." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/4082.

Full text

Abstract:

The behaviour of sands during loading has been studied in great detail. However, little work has been devoted to understanding the response of sands in unloading. Drained triaxial tests indicate that, contrary to the expected elastic behaviour, sand often exhibit contractive behaviour when unloaded. Undrained cyclic simple shear tests show that the increase in pore water pressure generated during the unloading cycle often exceeds that generated during loading. The tendency to contract upon unloading is important in engineering practice as an increase in pore water pressure during earthquake lo

APA, Harvard, Vancouver, ISO, and other styles

50

Llobet, Vallejo Jordi. "A constitutive model for fatigue and residual strength predictions of composite laminates." Doctoral thesis, Universitat de Girona, 2020. http://hdl.handle.net/10803/670692.

Full text

Abstract:

This thesis investigates the fatigue behaviour of fibre-reinforced composite laminates. Fatigue of composite materials is a complex subject both from an experimental and numerical modelling point of view. In this context, we designed a quite extensive experimental campaign to investigate the failure mechanisms that occur when the composite material undergoes fatigue. Then, we developed a constitutive model to anticipate the mechanical behaviour and the final strength of the material. This model was implemented inside a finite element code in order to analyse the behaviour of composite structur

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!