Displacement general solutions in strain gradient elasticity: review and analysis
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866908838144245760 |
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| author | Solyaev, Y. Hamouda, E. Sherbakov, S. |
| author_facet | Solyaev, Y. Hamouda, E. Sherbakov, S. |
| contents | In this work, we provide an overview of general solutions for displacement fields in static problems of isotropic strain gradient elasticity (SGE). We not only review existing solutions but also derive new representations, showing that all classical elasticity solutions - including those of Boussinesq-Galerkin, Papkovich-Neuber, Naghdi, Lame, Love and Boussinesq - can be simply generalized to SGE framework. In general, it is shown that SGE enables the use of any classical general solution representation combined with a Helmholtz decomposition for the gradient part of the displacement field. Consistency is also established between the presented Papkovich-Neuber representation and the general solutions of SGE proposed previously by Mindlin (1964), Lurie et al. (2006) and Charalambopoulos et al. (2020). Furthermore, we establish the relationships between the stress functions of different general solutions and show their completeness. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2602_15789 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Displacement general solutions in strain gradient elasticity: review and analysis Solyaev, Y. Hamouda, E. Sherbakov, S. Other Condensed Matter Mathematical Physics In this work, we provide an overview of general solutions for displacement fields in static problems of isotropic strain gradient elasticity (SGE). We not only review existing solutions but also derive new representations, showing that all classical elasticity solutions - including those of Boussinesq-Galerkin, Papkovich-Neuber, Naghdi, Lame, Love and Boussinesq - can be simply generalized to SGE framework. In general, it is shown that SGE enables the use of any classical general solution representation combined with a Helmholtz decomposition for the gradient part of the displacement field. Consistency is also established between the presented Papkovich-Neuber representation and the general solutions of SGE proposed previously by Mindlin (1964), Lurie et al. (2006) and Charalambopoulos et al. (2020). Furthermore, we establish the relationships between the stress functions of different general solutions and show their completeness. |
| title | Displacement general solutions in strain gradient elasticity: review and analysis |
| topic | Other Condensed Matter Mathematical Physics |
| url | https://arxiv.org/abs/2602.15789 |