Evaluation of yield strength under small punch loading with different specimen thicknesses
Distinguished by its simplicity and cost-effectiveness, Small Punch Test (SPT) enables the evaluation of different types of materials with reliable determination of their mechanical properties. In this study, the yield strength of Grade 91 steel is evaluated under the influence of different thicknes...
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| Format: | Article |
| Language: | English |
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Semarak Ilmu Publishing
2025
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| Online Access: | http://umpir.ump.edu.my/id/eprint/44093/ http://umpir.ump.edu.my/id/eprint/44093/1/Evaluation%20of%20yield%20strength%20under%20small%20punch.pdf |
| _version_ | 1848827030287679488 |
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| author | Ferdous, I. U. Nasrul Azuan, Alang Juliawati, Alias Norhaida, Ab Razak Zureena, Abu Samah |
| author_facet | Ferdous, I. U. Nasrul Azuan, Alang Juliawati, Alias Norhaida, Ab Razak Zureena, Abu Samah |
| author_sort | Ferdous, I. U. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Distinguished by its simplicity and cost-effectiveness, Small Punch Test (SPT) enables the evaluation of different types of materials with reliable determination of their mechanical properties. In this study, the yield strength of Grade 91 steel is evaluated under the influence of different thicknesses involving three different yield loads (Py). A small punch finite element modelling approach was employed to examine the load-displacement (L-D) relationship of the Grade 91 steel. Different empirical relationships were used to determine the dependence of yield strength on specimen thickness. To determine the optimum specimen thickness, the yield load (Py) and the derived material correlation parameter were considered. Taking these factors into account, the recommended specimen thickness was determined. The predicted yield strength showed that the material correlation coefficient (α) strongly depends on the material and specimen’s thickness. The study found a range of 0.31≤ α ≤ 0.48 for Grade 91 steel. It was also found that the range for the appropriate specimen thickness for SPT is 0.4 mm - 0.75 mm. |
| first_indexed | 2025-11-15T03:54:14Z |
| format | Article |
| id | ump-44093 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:54:14Z |
| publishDate | 2025 |
| publisher | Semarak Ilmu Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-440932025-03-27T01:02:25Z http://umpir.ump.edu.my/id/eprint/44093/ Evaluation of yield strength under small punch loading with different specimen thicknesses Ferdous, I. U. Nasrul Azuan, Alang Juliawati, Alias Norhaida, Ab Razak Zureena, Abu Samah TJ Mechanical engineering and machinery Distinguished by its simplicity and cost-effectiveness, Small Punch Test (SPT) enables the evaluation of different types of materials with reliable determination of their mechanical properties. In this study, the yield strength of Grade 91 steel is evaluated under the influence of different thicknesses involving three different yield loads (Py). A small punch finite element modelling approach was employed to examine the load-displacement (L-D) relationship of the Grade 91 steel. Different empirical relationships were used to determine the dependence of yield strength on specimen thickness. To determine the optimum specimen thickness, the yield load (Py) and the derived material correlation parameter were considered. Taking these factors into account, the recommended specimen thickness was determined. The predicted yield strength showed that the material correlation coefficient (α) strongly depends on the material and specimen’s thickness. The study found a range of 0.31≤ α ≤ 0.48 for Grade 91 steel. It was also found that the range for the appropriate specimen thickness for SPT is 0.4 mm - 0.75 mm. Semarak Ilmu Publishing 2025-06-30 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/44093/1/Evaluation%20of%20yield%20strength%20under%20small%20punch.pdf Ferdous, I. U. and Nasrul Azuan, Alang and Juliawati, Alias and Norhaida, Ab Razak and Zureena, Abu Samah (2025) Evaluation of yield strength under small punch loading with different specimen thicknesses. Journal of Advanced Research in Applied Mechanics, 130 (1). pp. 16-26. ISSN 2289-7895. (Published) https://doi.org/10.37934/aram.130.1.1626 https://doi.org/10.37934/aram.130.1.1626 |
| spellingShingle | TJ Mechanical engineering and machinery Ferdous, I. U. Nasrul Azuan, Alang Juliawati, Alias Norhaida, Ab Razak Zureena, Abu Samah Evaluation of yield strength under small punch loading with different specimen thicknesses |
| title | Evaluation of yield strength under small punch loading with different specimen thicknesses |
| title_full | Evaluation of yield strength under small punch loading with different specimen thicknesses |
| title_fullStr | Evaluation of yield strength under small punch loading with different specimen thicknesses |
| title_full_unstemmed | Evaluation of yield strength under small punch loading with different specimen thicknesses |
| title_short | Evaluation of yield strength under small punch loading with different specimen thicknesses |
| title_sort | evaluation of yield strength under small punch loading with different specimen thicknesses |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/44093/ http://umpir.ump.edu.my/id/eprint/44093/ http://umpir.ump.edu.my/id/eprint/44093/ http://umpir.ump.edu.my/id/eprint/44093/1/Evaluation%20of%20yield%20strength%20under%20small%20punch.pdf |