Lifetime-Oriented Structural Design Concepts- P12 pptx

... 772], implies, that the degradation of concrete caused by ASR is mainly induced by structural effects. These structural effects may result from hindered deformations due to geometrical constraints ... more or less heuristic evaluations of the degradation process and its influence on the residual structural safety. Recent progress in computational durability mechanics (see e.g. [75, 211, 80...

Ngày tải lên: 01/07/2014, 11:20

... numbers N T o of lorries during the design life assumed for λ 2 = 1.0. Therefore the factor differs for structures and structural members with different materials (e.g. structural steel, reinforcement, ... traffic category 2 in Table 3.14. Furthermore for the design life a reference value T so = 100 years was assumed. In case of another traffic category or design life the damage equivalen...

Ngày tải lên: 01/07/2014, 10:43

... loading (Subsections 3.2.1.2 and (Subsections 3.2.2) and structural experiments of steel-concrete composite structures (Subsection 3.2.3). 3.2.1 Laboratory Testing of Structural Materials Authored by Otto T. ... envi- ronmentally induced degradation mechanisms, which led to a better under- standing of the microstructural mechanisms and to analysis tools to simulate the relevant processes....

Ngày tải lên: 01/07/2014, 10:43

... Materials It has been shown in Subsections 3.1.2.3, 3.1.2.3.2, 3.1.2.3.3, 3.1.2.2.2 that the main microstructural mechanisms of environamentally induced corrosion and deterioration processes are by now ... more or less heuristic evaluations of the degradation process and its influence on the residual structural safety. Recent progress in computational durability mechanics (see e.g. [75, 211,...

Ngày tải lên: 01/07/2014, 10:43

... the continuum and the structural level. This can be explained as follows. Using one element over the thickness practically means to work with a one-directior shell theory. We are then at the structural ... contrast to many earlier approaches we do not have to neglect the stress in thickness direction at the structural level. [773], [774] and [776] propose an implicit residual error esti...

Ngày tải lên: 01/07/2014, 10:43

... this sudden release of elastic energy due to micro-fracture events are of most interest to the structural engineer. These events are typically 10μm to 100μm in linear dimension. Sources of acoustic ... emission examination is a nondestructive testing method with demonstrated capabilities for monitoring structural integrity, detecting leaks and incipient failures in mechanical equipment. A...

Ngày tải lên: 01/07/2014, 11:20

Ngày tải lên: 01/07/2014, 11:20

... changes in the damaged state. 4.6 Application of Lifetime-Oriented Analysis and Design 575 Fig. 4.120. FE model of the shaker test arrangement 4.6.2.3.1 Structural Analysis Using Time Integration Time ... long-term research in lifetime-oriented analysis and de- sign is the most essential achievement and the best possible evidence for work 4.6 Application of Lifetime-Oriented Analysi...

Ngày tải lên: 01/07/2014, 11:20

... T. Bruhns · Dietrich Hartmann Rüdiger Höffer · Detlef Kuhl Günther Meschke (Eds.) Lifetime-Oriented Structural Design Concepts ABC XVI Contents 3.3.4.2.10 Finite ElementCalculations of the (Reduced)Static ... representing the fields of structural engineering, structural mechanics, soil mechanics, material sci- ence, and numerical mathematics introduced a research program on “lifetime...

Ngày tải lên: 01/07/2014, 10:43

... research Integrated design concepts Appropriate Quality Assurance for structural design, detailing and execution QA is a very important overhead necessity, also for lifetime-oriented design concepts, ... Fundamentals of Lifetime-Oriented Design 7 lifetimes. The progress in lifetime-oriented design concepts can contribute to an international harmonization of warranty law. 1.5...

Ngày tải lên: 01/07/2014, 10:43