Strain-based fatigue reliability assessment of an automobile’s lower arm for various road load conditions due to limited experimental data
The aim of this paper is to characterise the strain-based fatigue reliability of a lower arm suspension system using strain signals captured from different types of road load conditions. Given the challenges of acquiring comprehensive loading history data and the inherent difficulties in capturing a...
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| Language: | en |
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Penerbit Universiti Kebangsaan Malaysia
2025
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| Online Access: | http://journalarticle.ukm.my/26748/1/07.pdf http://journalarticle.ukm.my/26748/ https://www.ukm.my/jkukm/volume-3701-2025/ |
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| author | Muhammad Ashraf Adam, Salvinder Singh Karam Singh, Shahrum Abdullah, Muhamad Alias Md. Jedi, |
| author_facet | Muhammad Ashraf Adam, Salvinder Singh Karam Singh, Shahrum Abdullah, Muhamad Alias Md. Jedi, |
| author_sort | Muhammad Ashraf Adam, |
| building | Tun Sri Lanang Library |
| collection | Institutional Repository |
| content_provider | Universiti Kebangsaan Malaysia |
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| continent | Asia |
| country | Malaysia |
| description | The aim of this paper is to characterise the strain-based fatigue reliability of a lower arm suspension system using strain signals captured from different types of road load conditions. Given the challenges of acquiring comprehensive loading history data and the inherent difficulties in capturing accurate load–time history data through laboratory or fiield-testing, a stochastic modelling approach was developed. Strain loads obtained from strain gauges were stochastically induced to generate random loads, which were then used to assess fatigue reliability based on the experimental data. The fatigue life, ranging from 3.43 x 105 - 9.02 x 105 cycles per block for highway, rural, and campus roads, was evaluated using the rainfl ow cycle counting technique through the strain life models, i.e. Coffi nManson, Morrow, and Smith-Watson-Topper. Furthermore, the reliability of the induced fatigue life data was modelled using a Weibull distribution, resulting in a mean cycle to failure for the lower arm falling within the range of 1.92 x 106 to 2.53 x 106 cycles per block. Among the various road conditions analyzed, the highway exhibited the highest fatigue life, indicating that it is less prone to failure compared to other road conditions, which can be attributed to the smoother road profi le. Hence, the use of stochastically induced random loads is proposed as an eff ective method for assessing strain-based fatigue reliability in aiding for the prediction of the durability and structural integrity of the lower arm suspension system. |
| format | Article |
| id | my-ukm.journal.26748 |
| institution | Universiti Kebangsaan Malaysia |
| language | en |
| publishDate | 2025 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | eprints |
| spelling | my-ukm.journal.267482026-03-15T07:57:17Z http://journalarticle.ukm.my/26748/ Strain-based fatigue reliability assessment of an automobile’s lower arm for various road load conditions due to limited experimental data Muhammad Ashraf Adam, Salvinder Singh Karam Singh, Shahrum Abdullah, Muhamad Alias Md. Jedi, The aim of this paper is to characterise the strain-based fatigue reliability of a lower arm suspension system using strain signals captured from different types of road load conditions. Given the challenges of acquiring comprehensive loading history data and the inherent difficulties in capturing accurate load–time history data through laboratory or fiield-testing, a stochastic modelling approach was developed. Strain loads obtained from strain gauges were stochastically induced to generate random loads, which were then used to assess fatigue reliability based on the experimental data. The fatigue life, ranging from 3.43 x 105 - 9.02 x 105 cycles per block for highway, rural, and campus roads, was evaluated using the rainfl ow cycle counting technique through the strain life models, i.e. Coffi nManson, Morrow, and Smith-Watson-Topper. Furthermore, the reliability of the induced fatigue life data was modelled using a Weibull distribution, resulting in a mean cycle to failure for the lower arm falling within the range of 1.92 x 106 to 2.53 x 106 cycles per block. Among the various road conditions analyzed, the highway exhibited the highest fatigue life, indicating that it is less prone to failure compared to other road conditions, which can be attributed to the smoother road profi le. Hence, the use of stochastically induced random loads is proposed as an eff ective method for assessing strain-based fatigue reliability in aiding for the prediction of the durability and structural integrity of the lower arm suspension system. Penerbit Universiti Kebangsaan Malaysia 2025 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/26748/1/07.pdf Muhammad Ashraf Adam, and Salvinder Singh Karam Singh, and Shahrum Abdullah, and Muhamad Alias Md. Jedi, (2025) Strain-based fatigue reliability assessment of an automobile’s lower arm for various road load conditions due to limited experimental data. Jurnal Kejuruteraan, 37 (1). pp. 79-96. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-3701-2025/ |
| spellingShingle | Muhammad Ashraf Adam, Salvinder Singh Karam Singh, Shahrum Abdullah, Muhamad Alias Md. Jedi, Strain-based fatigue reliability assessment of an automobile’s lower arm for various road load conditions due to limited experimental data |
| title | Strain-based fatigue reliability assessment of an automobile’s lower arm for various
road load conditions due to limited experimental data |
| title_full | Strain-based fatigue reliability assessment of an automobile’s lower arm for various
road load conditions due to limited experimental data |
| title_fullStr | Strain-based fatigue reliability assessment of an automobile’s lower arm for various
road load conditions due to limited experimental data |
| title_full_unstemmed | Strain-based fatigue reliability assessment of an automobile’s lower arm for various
road load conditions due to limited experimental data |
| title_short | Strain-based fatigue reliability assessment of an automobile’s lower arm for various
road load conditions due to limited experimental data |
| title_sort | strain-based fatigue reliability assessment of an automobile’s lower arm for various
road load conditions due to limited experimental data |
| url | http://journalarticle.ukm.my/26748/1/07.pdf http://journalarticle.ukm.my/26748/ https://www.ukm.my/jkukm/volume-3701-2025/ |
| url_provider | http://journalarticle.ukm.my/ |