Numerical analysis of notch-tip fields in rubber-modified epoxies
In this work, the near‐tip fields in notched specimens of pressure‐sensitive nonporous and porous materials are investigated by finite element analysis. The specimen geometry and material properties are adopted from the corresponding experiments on rubber‐modified epoxies. The Drucker‐Prager yield c...
Gespeichert in:
| Veröffentlicht in: | Polymer engineering and science 1999-04, Vol.39 (4), p.662-675 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 675 |
|---|---|
| container_issue | 4 |
| container_start_page | 662 |
| container_title | Polymer engineering and science |
| container_volume | 39 |
| creator | Al-Abduljabbar, A. Pan, J. |
| description | In this work, the near‐tip fields in notched specimens of pressure‐sensitive nonporous and porous materials are investigated by finite element analysis. The specimen geometry and material properties are adopted from the corresponding experiments on rubber‐modified epoxies. The Drucker‐Prager yield criterion is first used to describe the yielding of nonporous materials. The yielding behavior of porous materials is based on a generalized Gurson yield criterion. The yield criterion for porous materials accounts for both the matrix material pressure sensitivity and the macroscopic pressure sensitivity due to porosity. Modifications are made on the yield criterion under negative mean stresses in order to account for the specific loading and geometry of the specimen. The computational results are compared with observed experimental cavitation zones and intense shear zones near the notch tip in specimens. Moreover, the near‐tip fields and crack initiation sites ahead of the notch tip related to the volume fraction of rubber particles are investigated. The computational results suggest that the lowering of the mean stress ahead of the tip in rubber‐modified epoxies with higher volume fractions of rubber changes the fracture mode from being controlled by high mean stresses at the elastic‐plastic boundary to being controlled by large plastic strains closer to the notch tip. |
| doi_str_mv | 10.1002/pen.11455 |
| format | Article |
| fullrecord | <record><control><sourceid>gale_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_27056327</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A54831775</galeid><sourcerecordid>A54831775</sourcerecordid><originalsourceid>FETCH-LOGICAL-c6015-3d611ea1de16f5a07708a355c345c2c23dab81baaf54855974ea49ffd038c04d3</originalsourceid><addsrcrecordid>eNp10VFr1EAQB_AgCp7VB79BEBGFpt3NZrPJ41F6baGcYpWCL8vcZvbcmmTT3QR7395p72ypVPZhYfjNMMM_Sd5ydsAZyw8H7A84L6R8lsy4LKosL0XxPJkxJvJMVFX1MnkV4xUjK2Q9S-bLqcPgDLQp9NBuooupt2nvR_MzG92QWodtE1PXp2FarTBknW8cFZsUB3_jML5OXlhoI77Z_XvJ98Xxt6PT7PzzydnR_DwzJeMyE03JOQJvkJdWAlOKVSCkNKKQJje5aGBV8RWApa2lrFWBUNTWNkxUhhWN2Es-bOcOwV9PGEfduWiwbaFHP0WdKyZLkSuC7_6BV34KdBwZXkklRFUQ2t-iNbSoXW_9GMCssccAre_ROirPaRXBlZLEsyc4vQY7Z57yHx95IiPejGuYYtRnF18f0U9baoKPMaDVQ3AdhI3mTN9mqilTfZcp2fe70yBSZDZAb1x8aKg5xcqIHW7Zb9pq8_95-svx8u_g3X0u0p73HRB-6VIJJfXl8kT_UItLcVHWeiH-AOh0vA0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>218573384</pqid></control><display><type>article</type><title>Numerical analysis of notch-tip fields in rubber-modified epoxies</title><source>Access via Wiley Online Library</source><creator>Al-Abduljabbar, A. ; Pan, J.</creator><creatorcontrib>Al-Abduljabbar, A. ; Pan, J.</creatorcontrib><description>In this work, the near‐tip fields in notched specimens of pressure‐sensitive nonporous and porous materials are investigated by finite element analysis. The specimen geometry and material properties are adopted from the corresponding experiments on rubber‐modified epoxies. The Drucker‐Prager yield criterion is first used to describe the yielding of nonporous materials. The yielding behavior of porous materials is based on a generalized Gurson yield criterion. The yield criterion for porous materials accounts for both the matrix material pressure sensitivity and the macroscopic pressure sensitivity due to porosity. Modifications are made on the yield criterion under negative mean stresses in order to account for the specific loading and geometry of the specimen. The computational results are compared with observed experimental cavitation zones and intense shear zones near the notch tip in specimens. Moreover, the near‐tip fields and crack initiation sites ahead of the notch tip related to the volume fraction of rubber particles are investigated. The computational results suggest that the lowering of the mean stress ahead of the tip in rubber‐modified epoxies with higher volume fractions of rubber changes the fracture mode from being controlled by high mean stresses at the elastic‐plastic boundary to being controlled by large plastic strains closer to the notch tip.</description><identifier>ISSN: 0032-3888</identifier><identifier>EISSN: 1548-2634</identifier><identifier>DOI: 10.1002/pen.11455</identifier><identifier>CODEN: PYESAZ</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Application fields ; Applied sciences ; Epoxy compounds ; Exact sciences and technology ; Numerical analysis ; Polymer industry, paints, wood ; Technology of polymers</subject><ispartof>Polymer engineering and science, 1999-04, Vol.39 (4), p.662-675</ispartof><rights>Copyright © 1999 Society of Plastics Engineers</rights><rights>1999 INIST-CNRS</rights><rights>COPYRIGHT 1999 Society of Plastics Engineers, Inc.</rights><rights>Copyright Society of Plastics Engineers Apr 1999</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c6015-3d611ea1de16f5a07708a355c345c2c23dab81baaf54855974ea49ffd038c04d3</citedby><cites>FETCH-LOGICAL-c6015-3d611ea1de16f5a07708a355c345c2c23dab81baaf54855974ea49ffd038c04d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpen.11455$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpen.11455$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1910230$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Al-Abduljabbar, A.</creatorcontrib><creatorcontrib>Pan, J.</creatorcontrib><title>Numerical analysis of notch-tip fields in rubber-modified epoxies</title><title>Polymer engineering and science</title><addtitle>Polym Eng Sci</addtitle><description>In this work, the near‐tip fields in notched specimens of pressure‐sensitive nonporous and porous materials are investigated by finite element analysis. The specimen geometry and material properties are adopted from the corresponding experiments on rubber‐modified epoxies. The Drucker‐Prager yield criterion is first used to describe the yielding of nonporous materials. The yielding behavior of porous materials is based on a generalized Gurson yield criterion. The yield criterion for porous materials accounts for both the matrix material pressure sensitivity and the macroscopic pressure sensitivity due to porosity. Modifications are made on the yield criterion under negative mean stresses in order to account for the specific loading and geometry of the specimen. The computational results are compared with observed experimental cavitation zones and intense shear zones near the notch tip in specimens. Moreover, the near‐tip fields and crack initiation sites ahead of the notch tip related to the volume fraction of rubber particles are investigated. The computational results suggest that the lowering of the mean stress ahead of the tip in rubber‐modified epoxies with higher volume fractions of rubber changes the fracture mode from being controlled by high mean stresses at the elastic‐plastic boundary to being controlled by large plastic strains closer to the notch tip.</description><subject>Application fields</subject><subject>Applied sciences</subject><subject>Epoxy compounds</subject><subject>Exact sciences and technology</subject><subject>Numerical analysis</subject><subject>Polymer industry, paints, wood</subject><subject>Technology of polymers</subject><issn>0032-3888</issn><issn>1548-2634</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp10VFr1EAQB_AgCp7VB79BEBGFpt3NZrPJ41F6baGcYpWCL8vcZvbcmmTT3QR7395p72ypVPZhYfjNMMM_Sd5ydsAZyw8H7A84L6R8lsy4LKosL0XxPJkxJvJMVFX1MnkV4xUjK2Q9S-bLqcPgDLQp9NBuooupt2nvR_MzG92QWodtE1PXp2FarTBknW8cFZsUB3_jML5OXlhoI77Z_XvJ98Xxt6PT7PzzydnR_DwzJeMyE03JOQJvkJdWAlOKVSCkNKKQJje5aGBV8RWApa2lrFWBUNTWNkxUhhWN2Es-bOcOwV9PGEfduWiwbaFHP0WdKyZLkSuC7_6BV34KdBwZXkklRFUQ2t-iNbSoXW_9GMCssccAre_ROirPaRXBlZLEsyc4vQY7Z57yHx95IiPejGuYYtRnF18f0U9baoKPMaDVQ3AdhI3mTN9mqilTfZcp2fe70yBSZDZAb1x8aKg5xcqIHW7Zb9pq8_95-svx8u_g3X0u0p73HRB-6VIJJfXl8kT_UItLcVHWeiH-AOh0vA0</recordid><startdate>199904</startdate><enddate>199904</enddate><creator>Al-Abduljabbar, A.</creator><creator>Pan, J.</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley Subscription Services</general><general>Society of Plastics Engineers, Inc</general><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>3V.</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P5Z</scope><scope>P62</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>199904</creationdate><title>Numerical analysis of notch-tip fields in rubber-modified epoxies</title><author>Al-Abduljabbar, A. ; Pan, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c6015-3d611ea1de16f5a07708a355c345c2c23dab81baaf54855974ea49ffd038c04d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Application fields</topic><topic>Applied sciences</topic><topic>Epoxy compounds</topic><topic>Exact sciences and technology</topic><topic>Numerical analysis</topic><topic>Polymer industry, paints, wood</topic><topic>Technology of polymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Al-Abduljabbar, A.</creatorcontrib><creatorcontrib>Pan, J.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>ProQuest Central (Corporate)</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><jtitle>Polymer engineering and science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Al-Abduljabbar, A.</au><au>Pan, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical analysis of notch-tip fields in rubber-modified epoxies</atitle><jtitle>Polymer engineering and science</jtitle><addtitle>Polym Eng Sci</addtitle><date>1999-04</date><risdate>1999</risdate><volume>39</volume><issue>4</issue><spage>662</spage><epage>675</epage><pages>662-675</pages><issn>0032-3888</issn><eissn>1548-2634</eissn><coden>PYESAZ</coden><abstract>In this work, the near‐tip fields in notched specimens of pressure‐sensitive nonporous and porous materials are investigated by finite element analysis. The specimen geometry and material properties are adopted from the corresponding experiments on rubber‐modified epoxies. The Drucker‐Prager yield criterion is first used to describe the yielding of nonporous materials. The yielding behavior of porous materials is based on a generalized Gurson yield criterion. The yield criterion for porous materials accounts for both the matrix material pressure sensitivity and the macroscopic pressure sensitivity due to porosity. Modifications are made on the yield criterion under negative mean stresses in order to account for the specific loading and geometry of the specimen. The computational results are compared with observed experimental cavitation zones and intense shear zones near the notch tip in specimens. Moreover, the near‐tip fields and crack initiation sites ahead of the notch tip related to the volume fraction of rubber particles are investigated. The computational results suggest that the lowering of the mean stress ahead of the tip in rubber‐modified epoxies with higher volume fractions of rubber changes the fracture mode from being controlled by high mean stresses at the elastic‐plastic boundary to being controlled by large plastic strains closer to the notch tip.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/pen.11455</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0032-3888 |
| ispartof | Polymer engineering and science, 1999-04, Vol.39 (4), p.662-675 |
| issn | 0032-3888 1548-2634 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_27056327 |
| source | Access via Wiley Online Library |
| subjects | Application fields Applied sciences Epoxy compounds Exact sciences and technology Numerical analysis Polymer industry, paints, wood Technology of polymers |
| title | Numerical analysis of notch-tip fields in rubber-modified epoxies |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-18T20%3A52%3A49IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Numerical%20analysis%20of%20notch-tip%20fields%20in%20rubber-modified%20epoxies&rft.jtitle=Polymer%20engineering%20and%20science&rft.au=Al-Abduljabbar,%20A.&rft.date=1999-04&rft.volume=39&rft.issue=4&rft.spage=662&rft.epage=675&rft.pages=662-675&rft.issn=0032-3888&rft.eissn=1548-2634&rft.coden=PYESAZ&rft_id=info:doi/10.1002/pen.11455&rft_dat=%3Cgale_proqu%3EA54831775%3C/gale_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=218573384&rft_id=info:pmid/&rft_galeid=A54831775&rfr_iscdi=true |