现代力学方法的技术转移与工程应用

所属分类:力学  
出版时间:2009-10   出版时间:华东理工大学出版社   作者:薛昌明 等主编   页数:606  

前言

This book is the seventh volume of the proceedings for the symposium series on Fracture Mechanics,an annual conference devoted to the exchange of information among the universities, researchinstitutions and industry sectors in China and abroad. FM2009 is held in Chengdu, Sichuan Province,from October 16 to October 20, 2009. The first FM conference was held in 2003 at East ChinaUniversity of Science and Technology, Shanghai. Since then, the FM annual meetings have taken placeat different cities in China. This includes FM2004 in Huangshan, Anhui Province, FM2005 in Zheng zhou, He nan Province, FM2006 in Nanjing, Jiangsu Province, FM2007 in Changsha, Hunan Province and FM2008 in Hangzhou, Zhejiang Province. These annual events are indicative of the fact that the FM symposium series has played an important role in promoting information exchange,inspiring new ideas, integrating practical and research findings and breaking new grounds for the younggeneration.As the globe is evolving into a more complex world, the structural integrity technology should adaptto the challenges of complexity of the environments and the machines themselves. An examination of thetransferability and applicability of the current mechanics approaches or theories to practical applicationsshould be imperative. As is known to us, any new model or approach must successfully transit twosequential "filters" between research initiation and application, i.e. a technical filter(does it work?)and atechnological filter (does it make sense in the "real world"?).However, our mechanics researchcommunity is normally not sufficiently knowledgeable concerning the metrics of the technological filterand therefore "non (application) useful" research is conducted in many cases and in others the research isnot carried far enough to allow practical applications.Aiming at bridging the gap between fundamentalresearches and applications, FM2009 brings together the mechanics research community and theapplication community to identify the transferability and applicability of current mechanics approachesfor structural integrity assessment.The symposium (FM2009) is co-organized by Southwest Jiaotong University, East China Universityof Science and Technology, National Engineering Research Center of Pressure Vessels and PipelinesSafety Technology (General Machinery Research Institute), Nanjing University of Technology, ZhejiangUniversity, Zhejiang University of Technology, Zhengzhou University, Changsha University of Scienceand Technology and Shandong University, and co-sponsored by the Chinese Consortium of StructuralIntegrity(including members of Chinese Pressure Vessel Institution and the High Temperature Strengthof Materials Committee of Chinese Materials Institution),Natural Science Foundation of China andGeneral Administration of Quality Supervision, Inspection and Quarantine of China.On behalf of the organizing committee, we would like to thank the above co-organizers andco-sponsors who made FM2009 possible.We also appreciate the efforts of the steering committeemembers in reviewing and selecting the papers. We are grateful for Professor George C. Sih for hisconstant support to the symposium series. We are indebted to Professor Zhengdong Wang and Dr ChiTsieh(Jimmy)Liu for their passion to the symposium and efforts made to ensure the success of the event.Special thanks are also due to the authors and speakers who make FM2009 unique.

内容概要

This book is the seventh volume of the proceedings for the symposium series on Fracture Mechanics,an annual conference devoted to the exchange of information among the universities, research institutions and industry sectors in China and abroad. FM2009 is held in Chengdu, Sichuan Province,from October 16 to October 20, 2009.

书籍目录

PrefaceFrom
the
editorsNon-Newtonian
mechanics
for
small
bodies
G.
C.
SihLife
prediction
and
monitoring
of
critical
industrial
equipment
Shan-Tung
TuCreep
properties
of
service-exposed
Alloy
625
after
resolution
annealing
treatment
andmicrostructural
assessment
using
ultrasonic
waves
S.
L.
Mannan,
M.
D.
MathewFinite
element
simulation
of
ductile
crack
propagation
in
metal
materials
Sujuan
Guo,
Guozheng
Kang,
Juan
Zhang,
Yan
GuoInvestigating
the
effects
of
crack
geometry
and
location
on
crack
growth
behavior
in
a
centrallyperforated
cylinder
under
internal
pressure
C.
W.
Smith,
C.
T.
LiuApplication
of
stress-triaxiality
dependent
fracture
criteria
for
unnotched
charpy
specimens
Hailing
Yu,
David
Y.
JeongAntiplane
interaction
of
a
crack
with
a
reinforced
elliptic
hole
embedded
in
an
infinite
matrix
C.
K.
Chao,
A.
WikartaAnalysis
of
arbitrary
shaped
three-dimensional
cracks
by
using
a
virtual
crack-closure
integralmethod
(VCCM)
for
tetrahedral
finite
element
Hiroshi
Okada,
Takashi
Tokuda,
Hiroshi
Kawai,
Yasuyoshi
FukuiIndicating
the
limits
of
metals
to
receive
surface
engineering
treatments
in
order
to
improve
theirfatigue
resistance
M.
Castillo,
C.
Rodopoulos,
M.
Papadopoulos,
Sp.
PantelakisElastic
fields
of
a
circular
inhomogeneity
with
imperfect
interface
in
anisotropic
media
G.
H.
Nie,
Z.
Q.
HuangDynamic
compressive
response
of
soft
biological
tissues
Weinong
ChenStrain
accumulation
process
under
periodical
loading
in
polymeric
materials
I.
Emri,
B.
Zupancic,
A.
Nikonov,
U.
Florjancic……

章节摘录

插图:chemical
kinetics
process
[4].
Nevertheless,
thedamage
or
deterioration
process
of
material
is
nota
simply
elementary
reaction.
It
is
composed
ofhighly
complicated
reactions
of
a
series
of
dif-ferent
barriers.
Hence,
the
activation
energy
dur-ing
the
deterioration
process
of
materials
is
afunction
of
temperature
and
time.
This
is
differentfrom
the
preconditions
of
the
classical
Arrheniusequation.
Therefore,
whether
Arrhenius
equationis
applicable
to
describe
the
deterioration
processof
materials
under
different
time
scales
needsfurther
theoretical
research
and
experimental
va-lidation
[5].
There
are
similar
bottleneck
prob-lems
regarding
the
life
prediction
of
deformationand
fracture
of
materials
under
chemical
attack,which
require
us
to
understand
the
synergeticeffect
of
mechanics
and
chemistry
[6].Another
emerging
issue
is
in
life
prediction
thetime
dependent
fracture
under
complex
stressstate
or
constraint.
The
actual
engineering
struc-tures
or
components
are
rather
complicated.
Forexample,
there
can
be
structural
discontinuity,material
discontinuity
and
load
discontinuity
re-quired
by
service
functions
or
introduced
bymanufacturing
processes.
The
response
to
frac-ture
of
the
structures
can
be
very
different
fromthe
behavior
obtained
from
small
specimens
in
the
lab.
On
the
other
hand,
in
order
to
evaluate
the
service
properties
of
actual
structures,
it
isgenerally
very
difficult
to
remove
a
bulk
materialfrom
the
structure.
Thus
non-standard
specimensare
machined
from
the
structures
resulting
in
dif-ferent
constraints.
Obviously
the
key
would
be
todescribe
the
actual
failure
process
under
con-straints
(under
complicated
stress
status).
In
orderto
transfer
the
experimental
results
in
labs
to
en-gineering
components,
lots
of
efforts
have
beentaken
to
study
the
constraint
effect
on
fracture
atambient
temperature.
It
was
recognized
that
thefracture
toughness
is
no
longer
a
constant
unlessthe
stress
flied
near
the
crack
tip
is
dominated
bygeneral
fracture
parameters
(stress
intensity
factorK
or
J-integral)
[7].
But
in
fact
the
structurethickness
and
crack
dimension
could
hardly
sat-isfy
the
constraint
requirements
near
the
crack
tipand
thus
the
fracture
toughness
tested
fromhigh-constraints
samples
in
the
lab
cannot
be
di-rectly
used
in
engineering
structures.
Aiming
atsuch
shortcomings,
a
number
of
approaches
in-cluding
K-T
method
applicable
to
linear
elasticfracture,
J-Q
theory
under
elastoplastic
mecha-nism
and
three-parameter
revision
method,
havebeen
proposed
[8].
Meanwhile,
local
approachbased
on
Weibull
stress
and
some
other
improvedmodels
have
been
proposed
for
the
brittle
fractureproblems
of
thick
components
[9].
However,
thetime-dependent
fracture
under
constraint
effect
isstill
a
challenge
issue.
Much
work
should
be
doneto
quantify
the
time
dependent
constraint
effect,develop
the
non-standard
testing
methods,
andclarify
the
transferability
of
testing
results.
Anemerging
issue
is
to
develop
the
micro-or
minia-ture
specimen
testing
method
that
can
be
used
forthe
semi-destructive
evaluation
of
service
struc-tures.
At
present,
some
research
work
has
beendone
on
obtaining
the
high-tempera~re
creepproperties
by
using
non
standard
specimens.
Forexample,
indentation
test
can
be
used
to
measurethe
creep
and
fatigue
properties
of
material
(i.e.impression
creep
and
compressive
fatigue)
inaddition
to
general
mechanical
properties
[10].Small
punch
test
has
been
well
used
in
Europeand
testing
standard
has
been
proposed
[11].
Atesting
method
based
on
ring
specimen
that
usesthe
reference
stress
to
correlate
the
experimentalresults
with
uniaxial
ones
has
been
proposed
re-cently
[12].
In
fact,
the
specimens
used
for
ob-taining
the
material
properties
of
service
compo-nents
can
be
very
different
(as
shown
in
Fig.
1
!).Emphasis
should
be
laid
on
the
time-dependentdeformation
and
fracture
theory
under
constraintcondition
that
enables
the
non-standard
specimentest
techniques
[
13].4.
Development
trends
in
life
monitoringFrom
the
view
point
of
epistemology,
there
areno
perfect
design
and
perfect
manufacture.
Toensure
the
safe
operation,
life
monitoring
of
crit-ical
industrial
equipment
should
thus
be
impera-tive.
At
the
same
time,
the
applications
of
ad-vanced
materials
and
processing
technologies
inhigh
tech
products
are
now
common
practicesthough
lack
of
testing
data
and
service
experi-ences.
An
on-line
life
monitoring
system
willhelp
to
indentify
the
problems
in
the
materialsand
processing,
which
in
turn
gives
feedback
toimprove
materials
and
design
and
manufacturebesides
securing
the
safe
operation.

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《现代力学方法的技术转移与工程应用:国际断裂力学2009年会论文集(英文版)》是由华东理工大学出版社出版的。

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