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Rate sensitive material Ⅰ quasi-static growing crack in the viscoplastic analysis

* 34 * 26, Harbin Engineering University Volume 6 Conclusion 1) viscoplastic material for quasi-static expansion problem, the crack tip stress and strain singularity with r; 2) for I-crack, crack tip field singularity target practice by the two parameters to be determined, this two parameters are given by the far-field; 3) the crack tip plastic zone is controlled by the viscosity,[link widoczny dla zalogowanych], there is no elastic unloading zone. References: [1: HUTCHINSONJW. Singularbehaviouratendoftensilecrackinahardeningmaterial [J]. JournalofMechanicsandPhysicsofSolids. 1968,16 (1) :13-21. [2: RICEJR, ROSENGRENGF. Planestraindeformationnearcracktipinapowerlawhardeningmaterial [J]. Jour-nalofMechanicsandPhysiCSofSolids, 1968,16 (1): 1 a l2. [3: CHITELAYAD. MCCLINTORKFA. Elastic-plasticme-chanicsofsteadycrackgro,[link widoczny dla zalogowanych], wthunderanti-planeshear [J]. JournalofMechanicsandPhysicsofSolids, 1971,[link widoczny dla zalogowanych],19 (3): l47 a l63. . [4] SLEPYANLI. (; Rowingcrackduringplanedeformationofanelastic-plastict ~ cly [J]. IzvAkadNaukSSRMekhaikaTverdogoTela,[link widoczny dla zalogowanych], 1974.9 (1) :57-67. [5 GAO Yu-chen. Ideal plastic medium, the steady expansion of the elastic-plastic crack fields [J]. Mechanics, 1980,12 (1) :48-56. GAOYuchen.Elastic-plasticfieldsafastaticallygrowingcrackin [~ rfeetlyplasticmedium: J]. ActaMeehanicaSiniea, l980, 12 (1) :48-56. [6] RICEJR, DRUGANWJ, SHAMTL.Elastic-plasticanal-ysisofgrowingcrack [J] . FractureMechanics: ASTMSTP700 ,1980:189-221 .7] GAOYuehen.Furtherstudyonstrainsingularitybehaviourofmovingcracksinelastic-viseoplasticmaterials [J.Theoreti-calandAppliedFractureMechanics, 1990.14 (3): 120 for a l26. [8] WANGZhenqing.Asymptoti (studyofmodeIpropaga-ringcrack-tipfieldinelastic a ~ iscoplastiematerial [J]. In-temationalConferenceonAdvancedMaterial: ProgressinAdvancedMaterialandMeehanies ,1996,[link widoczny dla zalogowanych],8:754-759. [9] THEORETICAL. visco-elastic plastic material dynamic crack tip field [J]. Mechanics, 1993,25 (3) :159-168. WANGZhenqing.Fiehlsnearapropagatingcrack-tipinelastic-viscoplasticmaterial [J. AetaMechanicaSinica, 1993,25 (3) :159-168. [Editor: Li Ling Chu]

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