A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) Powders
The cold compaction of poly (ether ketone ketone) (PEKK) powder was studied by experiments and simulations based on the modified Doraivelu model. Although this model can successfully predict the compaction behavior of metal powders, discussion of the prediction of polymer powders is lacking. Based o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/6/1270 |
| _version_ | 1797443126349004800 |
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| author | Fan Xu Huixiong Wang Xuelian Wu Zihao Ye Hong Liu |
| author_facet | Fan Xu Huixiong Wang Xuelian Wu Zihao Ye Hong Liu |
| author_sort | Fan Xu |
| collection | DOAJ |
| description | The cold compaction of poly (ether ketone ketone) (PEKK) powder was studied by experiments and simulations based on the modified Doraivelu model. Although this model can successfully predict the compaction behavior of metal powders, discussion of the prediction of polymer powders is lacking. Based on the mechanical theory of metal plasticity, the modified Doraivelu model was established by introducing the material parameters <i>m</i> and <i>n</i>. The modified model can predict the compaction density of PEKK powder during cold compaction. A sub-increment method for this constitutive model was then established and implemented into a finite-element model by using the user-defined material subroutine UMAT in ABAQUS/Standard. Consequently, the material parameters of the modified Doraivelu model were identified by an inverse method using the experimental data and simulation results. It was found that when <i>m</i> = 0, <i>n</i> = 4, and the initial relative density was 0.4485, the simulation results were the closest to the experimental ones. |
| first_indexed | 2024-03-09T12:51:33Z |
| format | Article |
| id | doaj.art-0313f6b916974fe4bd3f817c895034ff |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T12:51:33Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-0313f6b916974fe4bd3f817c895034ff2023-11-30T22:05:00ZengMDPI AGPolymers2073-43602022-03-01146127010.3390/polym14061270A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) PowdersFan Xu0Huixiong Wang1Xuelian Wu2Zihao Ye3Hong Liu4School of Mechanical Engineering, Jiangsu University, Zhenjiang 212000, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang 212000, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang 212000, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang 212000, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang 212000, ChinaThe cold compaction of poly (ether ketone ketone) (PEKK) powder was studied by experiments and simulations based on the modified Doraivelu model. Although this model can successfully predict the compaction behavior of metal powders, discussion of the prediction of polymer powders is lacking. Based on the mechanical theory of metal plasticity, the modified Doraivelu model was established by introducing the material parameters <i>m</i> and <i>n</i>. The modified model can predict the compaction density of PEKK powder during cold compaction. A sub-increment method for this constitutive model was then established and implemented into a finite-element model by using the user-defined material subroutine UMAT in ABAQUS/Standard. Consequently, the material parameters of the modified Doraivelu model were identified by an inverse method using the experimental data and simulation results. It was found that when <i>m</i> = 0, <i>n</i> = 4, and the initial relative density was 0.4485, the simulation results were the closest to the experimental ones.https://www.mdpi.com/2073-4360/14/6/1270PEKK powdercold compactionmodified Doraivelu modelUMAT |
| spellingShingle | Fan Xu Huixiong Wang Xuelian Wu Zihao Ye Hong Liu A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) Powders Polymers PEKK powder cold compaction modified Doraivelu model UMAT |
| title | A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) Powders |
| title_full | A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) Powders |
| title_fullStr | A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) Powders |
| title_full_unstemmed | A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) Powders |
| title_short | A Density-Dependent Modified Doraivelu Model for the Cold Compaction of Poly (Ether Ketone Ketone) Powders |
| title_sort | density dependent modified doraivelu model for the cold compaction of poly ether ketone ketone powders |
| topic | PEKK powder cold compaction modified Doraivelu model UMAT |
| url | https://www.mdpi.com/2073-4360/14/6/1270 |
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