Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene
This paper presents the peridynamic numerical method for nonlinear viscoelastic creep behaviour which consists of primary, secondary, tertiary creep stages and creep rupture. A nonlinear viscoelastic creep constitutive equation based on internal state variable (ISV) theory which covers four creep st...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Mechanical Engineering, Universiti Malaysia Pahang
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/81676/1/CREEP.pdf |
| _version_ | 1796980949607514112 |
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| author | Azizi, Muhammad Azim Mohd Ihsan, Ahmad Kamal Ariffin |
| author_facet | Azizi, Muhammad Azim Mohd Ihsan, Ahmad Kamal Ariffin |
| author_sort | Azizi, Muhammad Azim |
| collection | UPM |
| description | This paper presents the peridynamic numerical method for nonlinear viscoelastic creep behaviour which consists of primary, secondary, tertiary creep stages and creep rupture. A nonlinear viscoelastic creep constitutive equation based on internal state variable (ISV) theory which covers four creep stages is examined. The viscoelastic equation is substituted into material parameter in the peridynamic equation to derive a new peridynamic method with two time parameters i.e. numerical time and real time. The parameters of the viscoelastic equation is analyzed and evaluated. In validating this peridynamic method, a comparison is made between numerical and experimental data. The peridynamic method for nonlinear viscoelastic creep behaviour (VE-PD) is approved by the good similarity between numerical and experimental creep strain curves with overall difference of 10.67%. The nonlinearity of experimental and numerical data is adequately similar as the error between experimental and numerical curves of secondary stage strain rate against load is 8.022%. The shapes of fractured numerical specimen show good resemblance with the experimental result as well. |
| first_indexed | 2024-03-06T10:30:34Z |
| format | Article |
| id | upm.eprints-81676 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:30:34Z |
| publishDate | 2019 |
| publisher | Faculty of Mechanical Engineering, Universiti Malaysia Pahang |
| record_format | dspace |
| spelling | upm.eprints-816762021-05-06T20:07:56Z http://psasir.upm.edu.my/id/eprint/81676/ Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene Azizi, Muhammad Azim Mohd Ihsan, Ahmad Kamal Ariffin This paper presents the peridynamic numerical method for nonlinear viscoelastic creep behaviour which consists of primary, secondary, tertiary creep stages and creep rupture. A nonlinear viscoelastic creep constitutive equation based on internal state variable (ISV) theory which covers four creep stages is examined. The viscoelastic equation is substituted into material parameter in the peridynamic equation to derive a new peridynamic method with two time parameters i.e. numerical time and real time. The parameters of the viscoelastic equation is analyzed and evaluated. In validating this peridynamic method, a comparison is made between numerical and experimental data. The peridynamic method for nonlinear viscoelastic creep behaviour (VE-PD) is approved by the good similarity between numerical and experimental creep strain curves with overall difference of 10.67%. The nonlinearity of experimental and numerical data is adequately similar as the error between experimental and numerical curves of secondary stage strain rate against load is 8.022%. The shapes of fractured numerical specimen show good resemblance with the experimental result as well. Faculty of Mechanical Engineering, Universiti Malaysia Pahang 2019-12 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81676/1/CREEP.pdf Azizi, Muhammad Azim and Mohd Ihsan, Ahmad Kamal Ariffin (2019) Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene. Journal of Mechanical Engineering and Sciences, 13 (4). pp. 5735-5752. ISSN 2289-4659; ESSN: 2231-8380 https://journal.ump.edu.my/jmes/article/view/451 10.15282/jmes.13.4.2019.02.0458 |
| spellingShingle | Azizi, Muhammad Azim Mohd Ihsan, Ahmad Kamal Ariffin Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene |
| title | Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene |
| title_full | Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene |
| title_fullStr | Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene |
| title_full_unstemmed | Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene |
| title_short | Peridynamic model for nonlinear viscoelastic creep and creep rupture of Polypropylene |
| title_sort | peridynamic model for nonlinear viscoelastic creep and creep rupture of polypropylene |
| url | http://psasir.upm.edu.my/id/eprint/81676/1/CREEP.pdf |
| work_keys_str_mv | AT azizimuhammadazim peridynamicmodelfornonlinearviscoelasticcreepandcreepruptureofpolypropylene AT mohdihsanahmadkamalariffin peridynamicmodelfornonlinearviscoelasticcreepandcreepruptureofpolypropylene |