STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMIC
The defect arising from the thermal coefficient mismatch of different phases was an important factor of reducing strength in eutectic composite ceramic. Based on the equivalent inclusion method and the interaction direct derivative（ IDD）estimate,stress intensity factor of annular defect under residu...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2017-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.06.019 |
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| _version_ | 1841535398502727680 |
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| author | YU JinFeng LIU XieQuan NI XinHua FU YunWei |
| author_facet | YU JinFeng LIU XieQuan NI XinHua FU YunWei |
| author_sort | YU JinFeng |
| collection | DOAJ |
| description | The defect arising from the thermal coefficient mismatch of different phases was an important factor of reducing strength in eutectic composite ceramic. Based on the equivalent inclusion method and the interaction direct derivative（ IDD）estimate,stress intensity factor of annular defect under residual stress field and applied loading was calculated,and annular defect stability was analyzed. And the influence of particle stiffness,shape and volume fraction was investigated. Results indicated that,the crack nucleation was most easily produced in the oblate particle; stiff particles caused average applied stress reduced in matrix,and it reduced greater when the stiff particle was prolate elliptic,while the soft particle had the contrary effect. Stress intensity factor of defect was controlled by residual stress as the defect extension was small while it was controlled by applied stress for large defect extension. Prolate elliptic particle was beneficial to improve strength. |
| format | Article |
| id | doaj-art-d91022ed340a4952b1629abd6a157e47 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-d91022ed340a4952b1629abd6a157e472025-01-15T02:33:10ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692017-01-01391366137030600170STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMICYU JinFengLIU XieQuanNI XinHuaFU YunWeiThe defect arising from the thermal coefficient mismatch of different phases was an important factor of reducing strength in eutectic composite ceramic. Based on the equivalent inclusion method and the interaction direct derivative（ IDD）estimate,stress intensity factor of annular defect under residual stress field and applied loading was calculated,and annular defect stability was analyzed. And the influence of particle stiffness,shape and volume fraction was investigated. Results indicated that,the crack nucleation was most easily produced in the oblate particle; stiff particles caused average applied stress reduced in matrix,and it reduced greater when the stiff particle was prolate elliptic,while the soft particle had the contrary effect. Stress intensity factor of defect was controlled by residual stress as the defect extension was small while it was controlled by applied stress for large defect extension. Prolate elliptic particle was beneficial to improve strength.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.06.019InclusionDefectDefect stabilityThe equivalent inclusion method |
| spellingShingle | YU JinFeng LIU XieQuan NI XinHua FU YunWei STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMIC Jixie qiangdu Inclusion Defect Defect stability The equivalent inclusion method |
| title | STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMIC |
| title_full | STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMIC |
| title_fullStr | STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMIC |
| title_full_unstemmed | STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMIC |
| title_short | STABILITY ANALYSIS OF DEFECT AROUND PARTICLES IN EUTECTIC COMPOSITE CERAMIC |
| title_sort | stability analysis of defect around particles in eutectic composite ceramic |
| topic | Inclusion Defect Defect stability The equivalent inclusion method |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.06.019 |
| work_keys_str_mv | AT yujinfeng stabilityanalysisofdefectaroundparticlesineutecticcompositeceramic AT liuxiequan stabilityanalysisofdefectaroundparticlesineutecticcompositeceramic AT nixinhua stabilityanalysisofdefectaroundparticlesineutecticcompositeceramic AT fuyunwei stabilityanalysisofdefectaroundparticlesineutecticcompositeceramic |