Lifetime-Oriented Structural Design Concepts- P2 potx
Lifetime-Oriented Structural Design Concepts- P1 pdf
... 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...
Lifetime-Oriented Structural Design Concepts- P2 potx
... 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...
Lifetime-Oriented Structural Design Concepts- P3 pps
... considered for realistic
lifetime oriented design concepts especially with regard to the fatigue damage
of structures and structural members. The basis of such design concepts is
the realistic modelling ... Bridges
Authored by Gerhard Hanswille
For a realistic lifetime oriented design especially with regard to the fatigue
damage of structures and structural members realistic models...
Lifetime-Oriented Structural Design Concepts- P4 pptx
... 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...
Lifetime-Oriented Structural Design Concepts- P5 ppt
... the design as long as the train speed is sufficiently below the
critical. If however the critical speed is lower than the maximal track speed,
resonant amplification will provide the dominant design ... Pattern for Static and Dynamic Design Calculations
The following expression summarizes the observed effects and may be applied
to static and in particular to dynamic design calculations:
q...
Lifetime-Oriented Structural Design Concepts- P6 docx
... shallow foundations side by side) and different loadings arising from
the superstructure design (despite design efforts to avoid this).
108 2 Damage-Oriented Actions and Environmental Impact
Fig. ... yield strength undergo progressive, localized, and permanent structural
changes, i.e. also in these materials fatigue takes place. The structural change
thus can be described on the macrosc...
Lifetime-Oriented Structural Design Concepts- P7 pptx
... 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....
Lifetime-Oriented Structural Design Concepts- P8 doc
... interval between the maximum amplitude of the
burst and the last threshold crossing.
• event: A microstructural displacement that produces elastic waves in ma-
terial under load or stress, which are ... Therefore, the reliability of such structures depends among other
influences also on the degree of structural degradation due to fatigue loading.
In order to estimate the state of a structure...
Lifetime-Oriented Structural Design Concepts- P12 potx
... 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,...
Lifetime-Oriented Structural Design Concepts- P20 potx
... aforemen-
tioned design variables, optimization criterion and constraints:
• design variables x
i
,i=1, 2, 3, ,n representing the vital parameters of
a structural system, concentrated in the design vector ... reported here.
4.5 Optimization and Design
Authored by Dietrich Hartmann
As demonstrated in Section 4.1.4 structural design problems can be trans-
formed into equivalent s...
Lifetime-Oriented Structural Design Concepts- P21 potx
... ex-
amples are shown in the following chapters ranging from the lifetime-oriented
analysis and design of beam-like structures over structural components used
in the automobile industry up to concrete ... reinforced side-frame design
and additional torsion bars, which are packaged at several locations in the
convertible structure.
4.6 Application of Lifetime-Oriented Analysis and De...
Lifetime-Oriented Structural Design Concepts- P2 ppt
... needed.
For practical design it is sufficient to apply equivalent static gust wind loads.
1.5 Fundamentals of Lifetime-Oriented Design 7
lifetimes. The progress in lifetime-oriented design concepts can ... international harmonization of warranty law.
1.5 Fundamentals of Lifetime-Oriented Design
Authored by Friedhelm Stangenberg
Current structural design concepts are oriented t...
Lifetime-Oriented Structural Design Concepts- P15 potx
... eliminate these nodes at the structural level by a static condensation
technique to achieve a better condition of the matrices and a better perfor-
mance at the structural level [245]. The number ... is indicated
by the ratio of the total number of system nodes/dof. The structural efficiency
and the combined fieldwise and structural efficiency for a truss structure is
Eff
u
struc
=
NN
u
p,1...
Lifetime-Oriented Structural Design Concepts- P19 potx
... inter-
faces have been developed within the scope of reduction methods for large
structural dynamic models and the design of single dynamical components
of challenging structures. These methods ... popular model reduction method. The idea is to solve a subset of the
4.2 Numerical Methods 501
Structural Dynamics
Modelling (FEM)
Linear Components Nonlinear Components
Model Reduction
Subst...
Lifetime-Oriented Structural Design Concepts- P23 potx
... different strengths at the age of 28 days (solid
lines) [193]
4.6 Application of Lifetime-Oriented Analysis and Design 631
E(f
ck
) = 21500 ·
f
ck
+8
10
1
3
(4.432)
f
ct
(f
ck
)=1.40 ·
f
ck
10
2
3
(4.433)
4.6.5.1.5.3 ... distribution.
ΔH(x, y, z) =
¯
Φ ·
¯
Λ
¯
Λ = diag{λ
1
, , λ
n
} (4.436)
4.6 Application of Lifetime-Oriented Analysis and Design 641
Fig. 4.174. Cantilever bend...
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