Creep analysis

Part 1 of ebook "Creep and hygrothermal effects in concrete structures" provides readers with contents including: Chapter 1 – Introduction how the theory evolved and how it impacts practice; Chapter 2 - Fundamentals of linear viscoelasticity; Chapter 3 - Basic properties of concrete creep, shrinkage, and drying; Chapter 4 - Structural effects of creep and age-adjusted effective modulus method; Chapter 5 - Numerical analysis of creep problems; Chapter 6 - Uncertainty due to parameter randomness via sampling of deterministic solutions;...

451p mothoiphong 28-06-2024 1 1   Download

Part 2 of ebook "Creep and hygrothermal effects in concrete structures" provides readers with contents including: Chapter 9 - Solidification theory for aging effect on stiffness and basic creep; Chapter 10 - Microprestress-solidification theory and creep at variable humidity and temperature; Chapter 11 - Physical and statistical justifications of models B3 and B4 and comparisons to other models; Chapter 12 - Effect of cracking and fracture mechanics aspects of creep and shrinkage analysis; Chapter 13 - Temperature effect on water diffusion, hydration rate, creep and shrinkage;...

509p mothoiphong 28-06-2024 2 1   Download

Part 2 of ebook "Creep in timber structures" provides readers with contents including: present knowledge of mechano-sorptive creep of wood; time-dependent slip of joints in timber engineering; creep of wooden structural components testing methods; variation of moisture content in timber structures; creep analysis of timber structures;...

82p mothoiphong 28-06-2024 2 1   Download

This work aims at investigating the effect of aleatoric uncertainty of creep rock properties on the stability of an underground structure. This uncertainty relates to the spatial variability of the mechanical parameters representing the time-dependent behavior of geological rock formation due to the change in its mineralogy.

13p vimclaren 12-10-2022 5 2   Download

This study investigates the time-dependent deformation of FRC beams under loading level Ps/P0 greater than 80% (Ps is the load at reloading and P0 is the load before unloading) with various aggregate sizes by using both the classical macroscopic measurement and the digital image correlation analysis (DIC).

10p haoasakura 30-05-2022 10 1   Download

The finite element analysis greatly enhances the understanding of the observations while the measurements give the finite element analysis substance. A full-scale test embankment reinforced with Tenax TT 201 polymer geogrids and weathered Bangkok clay as backfill material has been carried out. Finite element method has been employed to reanalyze all the measured data from the above test embankment. The agreement between the finite element results and the field data is quite good. The results indicate that the overconsolidation ratios affect much on the consolidation settlement.

4p thienlangso 15-12-2021 15 1   Download

Heat stress is the primary abiotic stress limiting growth of cool-season grass species. The objective of this study was to determine molecular factors and metabolic pathways associated with superior heat tolerance in thermal bentgrass (Agrostis scabra) by comparative analysis of transcriptomic profiles with its co-generic heat-sensitive species creeping bentgrass (A. stolonifera).

27p vibeauty 23-10-2021 7 1   Download

In this study, a feed-forward back-propagation Artificial Neural Network (ANN) is used to predict the stress relaxation and behavior of creep for bimaterial microcantilever beam for sensing device. Results obtained from ANSYS® 8.1 finite element (FE) simulations, which show good agreement with experimental work [1], is used to train the neural network. Parametric studies are carried out to analyze the effects of creep on the microcantilever beam in term of curvature and stress developed with time.

8p 12120609 01-06-2020 9 1   Download

The authors have carried out studies on long term behavior of concrete-filled steel tubular (CFST) column by numerical methods based on experimental data that is described by a visco-elastic model, and the age-adjusted effective modulus (AAEM) method is adopted to modelling creep behavior of the concrete core, which is evaluated by the Finite Element Method (FEM) combined Prony's series interpolation by using ANSYS software.

9p nguyenminhlong19 22-04-2020 42 0   Download

This study suggests that the compatibility of the high temperature irradiationinduced strains (axial growth and creep) between zircaloy and the coating layer and the capability to undergo plastic strain should be taken as key metrics, along with the traditional focus on chemical protectiveness.

13p minhxaminhyeu4 26-06-2019 14 0   Download

The distribution of lateral hydraulic forces within the core row is estimated based on a two-dimensional Computational Fluid Dynamics model with porous media, assuming symmetric or asymmetric core inlet and outlet flow profiles. The influence of the creep rate on the bow amplitude is tested based on different creep models for guide tubes and fuel rods. Different FA initial states are considered: fresh FAs or FAs with higher burnup, which may be initially straight or exhibit an initial bow from previous cycles.

9p minhxaminhyeu3 25-06-2019 19 0   Download

(bq) part 1 book "dynamic mechanical analysis - a practical introduction" has contents: an introduction to dynamic mechanical analysis; basic rheological concepts stress, strain, and flow; rheology basics - creep–recovery and stress relaxation; dynamic testing.

101p bautroibinhyen19 02-03-2017 55 3   Download

The constitutive law of plastic deformation expresses the effects of material behavior and properties for stress analysis in the design of manufacturing technology and product service behavior, for materials testing, and for the maintenance of structural and machine components. The book represents the state of the art, but the editors do not rule out other concepts of constitutive laws. There are many different facets of the same problem and as many answers; the right one is the one that gives the most practical solution, the one that best serves the specific problem....

479p japet75 25-02-2013 62 12   Download

Creep phenomena have so far been investigated only in terms of old- style technology. For a number of decades, the usual way of tackling similar problems was to apply simple and exact tests (e.g. tensile tests) to the very complex and impure materials used in industry and then to subject the results of these tests to a subtle mathematical analysis. As to the prospects of this way of proceeding, we need only to realize that a piece of iron is far more complicated a structure than, for example, a watch.

272p banhkem0908 24-11-2012 38 4   Download

It is now three years since Elsevier Science published the first book of Failure Analysis Case Studies selected fiom volumes 1,2 and 3 of the journal Engineering Failure Analysis. The book has proved to be a sought-after and widely used source of reference material to help people avoid or analyse engineering failures, design and manufacture for greater safety and economy, and assess operating, maintenance and fitness-for-purpose procedures.

462p khangoc2391 11-08-2012 57 9   Download

The result of applying a stress is a strain. There are many types of strain, developed for specific problems. ˙ deforms the sample at a constant strain rate, g , and measures the stress with a load cell resulting a stress (y-axis)–strain (x-axis) curve. Alternatively, we could apply a constant stress as fast as possible and watch the material deform under that load. This is the classical engineering creep experiment. If we also watch what happens when that stress is removed, we have the creep–recovery experiment (Figure 2.3b). These experiments complement DMA and are discussed in Chapter 3.

20p medinova 28-10-2010 75 4   Download

CHAPTER 10 STRESS ANALYSIS Franklin E. Fisher Mechanical Engineering Department Loyola Marymount University Los Angeles, California and Senior Staff Engineer Hughes Aircraft Company (Retired) 10.1 STRESSES, STRAINS, STRESS INTENSITY 10.1.1 Fundamental Definitions 10.1.2 Work and Resilience DISCONTINUITIES, STRESS CONCENTRATION COMBINED STRESSES CREEP FATIGUE 10.5.1 Modes of Failure 10.8 191 191 197 199 199 203 205 206 10.9 10.2 10.3 10.4 10.5 10.6 COLUMNS 10.8.1 Definitions 10.8.2 Theory 10.8.3 Wooden Columns 10.8.4 Steel Columns CYLINDERS, SPHERES, AND PLATES 10.9.

34p hadalabo 29-09-2010 76 23   Download

Tham khảo sách 'dynamic mechanical analysis', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

205p lyacau 30-12-2009 119 13   Download