共查询到18条相似文献,搜索用时 156 毫秒
1.
THEEXACTSOLUTIONSOFELASTIC-PLASTICCRACKLINEFIELDFORMODEⅡPLANESTRESSCRACKYiZhijian(易志坚)WangShijie(王士杰)WangXiangjian(王向坚)(Recei... 相似文献
2.
THE EXACT SOLUTIONS OF ELASTIC-PLASTIC CRACK LINE FIELD FOR MODE ⅡPLANE STRESS CRACK 总被引:1,自引:2,他引:1
THEEXACTSOLUTIONSOFELASTIC-PLASTICCRACKLINEFIELDFORMODEIIPLANESTRESSCRACKYiZhijian(易志坚)WangShijie(王士杰)WangXiangjian(王向坚)(Rece... 相似文献
3.
EXACT SOLUTIONS OF NEAR CRACK LINE FIELDS FOR MODE I CRACK UNDER PLANE STRESS CONDITION IN AN ELASTIC-PERFECTLY PLASTIC SOLID 总被引:1,自引:1,他引:1
EXACTSOLUTIONSOFNEARCRACKLINEFIELDSFORMODEICRACKUNDERPLANESTRESSCONDITIONINANELASTIC-PERFECTLYPLASTICSOLIDEXACTSOLUTIONSOFNEA... 相似文献
4.
刘汉池 《应用数学和力学(英文版)》1995,(8)
STRESS-STBAINFIELDNEARCRACKTIPANDCALCULATIONOFCRITICALSTRESSOFCRACKPROPAGATIONINAPUREBENDINGBEAMOFRECTANGULARSECTIONWITHONE-S... 相似文献
5.
林拜松 《应用数学和力学(英文版)》1995,16(11):1105-1115
ASUPPLEMENTARYSTUDYOFANISOTROPICPLASTICFIELDSATARAPIDLYPROPAGATINGPLANE-STRESSCRACK-TIP(I)LinBaisong(林拜松)(ReceivedJuly15.1994... 相似文献
6.
DYNAMICSTRESSINTENSITYFACTORSAROUNDTWOCRACKSNEARANINTERFACEOFTWODISSIMILARELASTICHALF-PLANESUNDERIN-PLANESHEARIMPACTLOADQianR... 相似文献
7.
POSTBUCKLINGBEHAViOROFRECTANGULARMODERATELYTHICKPLATESANDSANDWICHPLATESChengZhen-qiang(成振强)WangXiu-xi(王秀喜)HuangMao-guang(黄茂光)... 相似文献
8.
PLASTICPOST-BUCKLINGOFASIMPLYSUPPORTEDCOLUMNWITHASOLIDRECTANGULARCROSS-SECTIONChengYaoshun(程尧舜)(CollegeofStructuralEngineerin... 相似文献
9.
LARGEDEFLECTIONPROBLEMOFTHINORTHOTROPICCIRCULARPLATEONELASTICFOUNDATIONWITHVARIABLETHICKNESSUNDERUNIFORMPRESSURE(王嘉新)(刘杰)LARG... 相似文献
10.
ELASTICPULSEBUCKLINGOFCYLINDRICALSHELLSUNDERRADIALIMPULSIVELOADINGHuangChengyi(黄承义)LiuTuguang(刘土光)ZhengJijia(郑际嘉)(Departmento... 相似文献
11.
I.IntroductionThenearcracklineanalysismethodhasbeengreatlyimprovedbyYill'2].In[l,21,theimprovednearcracklineanalysismethodhasbeenusedtoinvestigateamodeIllcrackinanelastic-perfectlyplasticsolid.Andthesmallscaleyieldingconditionshavebeencompletelyabandoned,andcompletelynewandprecisesolutionsoftheelastic-plasticfieldsofamodeillstationarycrackandamodelillquasi-staticallygrowingcrackwithremotealltiplaneshearinginanelastic-perfectlyplastic'materialhavebeenobtained,respectively.In[3]weanalyzedthene… 相似文献
12.
THE PRECISE AND NEW ANALYSIS FOR A MODE Ⅲ GROWING CRACK IN AN ELASTIC-PERFECTLY PLASTIC SOLID 总被引:2,自引:2,他引:0
易志坚 《应用数学和力学(英文版)》1993,14(4):345-352
The near crack line field analysis method has been used to investigate into ModeⅢ quasistatically propagating crack in an elastic-perfectly plastic material.Thesignificance of this paper is that the usual small scale yielding theory has been brokenthrough.By obtaining the general solutions of the stresses and the displacement rate ofthe near crack line plastic region,and by matching the general solutions with theprecise elastic fields(not the usual elastic K-dominant fields)at the elastic-plasticboundary,the precise and new solutions of the stress and deformation fields,the sizeof the plastic region and the unit normal vector of the elastic-plastic boundary havebeen obtained near the crack line.The solutions of this paper are sufficiently precisenear the crack line region because the roughly qualitative assumptions of the smallscale yielding theory have not been used and no other roughly qualitative assumptionshave been taken,either.The analysis of this paper shows that the assumingly“steady-state cas 相似文献
13.
Near crack line elastic–plastic analysis for a infinite plate loaded by two pairs of point tensile forces 总被引:1,自引:0,他引:1
The near crack line analysis method is used to investigate a center crack loaded by two pairs of point tensile forces in an infinite plate in an elastic–perfectly plastic solid, and the analytical solutions are obtained in this paper. These solutions include: the elastic–plastic stress field near the crack line, the law that the length of the plastic zone along the crack line is varied with an external loads and the bearing capacity of an infinite plate with a center crack. The results of this paper are sufficiently precise near the crack line because the assumptions of the small scale yielding theory have not been used and no other assumptions have been taken. 相似文献
14.
The elastic-plastic stress distribution and the elastic-plastic boundary con- figuration near a crack surface region are significant but hard to obtain by means of the conventional analysis. A crack line analysis method is developed in this paper by consid- ering the crack surface as an extension of the crack line. The stresses in the plastic zone, the length, and the unit normal vector of the elastic-plastic boundary near a crack surface region are obtained for an antiplane crack in an elastic-perfectly plastic solid. The usual small scale yielding assumptions are not needed in the analysis. 相似文献
15.
C. Guo X.P. Zhou Y.X. Zhang H.Q. Yang X.H. Li 《Theoretical and Applied Fracture Mechanics》2009,51(3):174-180
The near crack line analysis method is used to investigate an eccentric crack loaded by shear forces in a finite width plate, and the analytical solution is obtained in this paper. The solution includes: the unit normal vector of the elastic–plastic boundary near the crack line, the elastic–plastic stress fields near crack line, variations of the length of the plastic zone along the crack line with an external loads, and the bearing capacity of a finite plate with a centric crack loaded by shear stress in the far field. The results obtained in this paper are sufficiently precise near the crack line because the assumptions of small scale yielding theory have not been made and no other assumptions have been taken. Subsequently, the present results are compared with the traditional line elastic fracture mechanical solutions and elastoplastic near field solutions under small scale yielding condition. On the basis of the minimum strain energy density (SED) theory, the minimum values of SED in the vicinity of the crack tip are determined, the initial growth orientation of crack are determined. It is found that the normalized load under large scale yielding condition is higher than those under small scale yielding condition when the length of the plastic zone is the same. 相似文献
16.
IntroductionTheelastic_plasticanalysisforacrackedplatewithfinitedimensionsisoneofthemostdifficultfieldsofelastic_plasticmechanics .Thenearcracklineanalysismethod ,whichwasfirstproposedbyAchenbachetal.[1,2 ] ,hasbeenimprovedbyYiinRefs.[3,4 ].InRefs.[3,4 ],… 相似文献
17.
18.
Summary An interface crack problem is investigated under various assumptions on an interface between two elastic materials. The interface
is modeled by an additional third structure (thin elastic wedge of differing elastic properties) matching the bonded materials,
or by introducing special boundary conditions on the crack line ahead. The main emphasis of the paper is placed on a comparison
of the asymptotic expansion of the elastic solutions near the crack tip obtained for the different models. In particular,
the behaviour of the stress singularity exponent and the generalized SIF are discussed. Numerical examples are presented.
Received 16 August 2000; accepted for publication 26 May 2001 相似文献