Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Jae S. Ahn"'
Autor:
Jeong J. Kim, Jae S. Ahn
Publikováno v:
Applied Sciences, Vol 14, Iss 22, p 10518 (2024)
This paper focuses on improving vehicle collision simulations using finite element analysis (FEA) to examine interactions between reinforced concrete barriers and bridge decks. Three scenarios are explored: treating the barrier as a rigid body, analy
Externí odkaz:
https://doaj.org/article/a81589c93fb74b8ba17ada724e288cd5
Publikováno v:
Advances in Civil Engineering, Vol 2021 (2021)
There are several techniques to simulate rebar reinforced concrete, such as smeared model, discrete model, embedded model, CLIS (constrained Lagrange in solid) model, and CBIS (constrained beam in solid) model. In this study, however, the interaction
Externí odkaz:
https://doaj.org/article/9386733b1f134814b9303a357377b766
Autor:
Jae S. Ahn
Publikováno v:
Advances in Mathematical Physics, Vol 2016 (2016)
Direct modeling and simulation of engineering problems with various irregularities are computationally very inefficient and in some cases impossible, even in these days of massively parallel computational systems. As a result, in recent times, a numb
Externí odkaz:
https://doaj.org/article/e38dbbceccc54707bb01f263c36d28f6
Autor:
Kwang S. Woo, Jae S. Ahn
Publikováno v:
Advances in Materials Science and Engineering, Vol 2015 (2015)
A higher-order layerwise model is proposed to determine stress intensity factors using virtual crack closure technique for single-edge-crack aluminum plates with patch repairs. The present method is based on p-convergent approach and adopts the conce
Externí odkaz:
https://doaj.org/article/999b00290bef4b0096987e1cc1f7c5f0
Publikováno v:
Advances in Mechanical Engineering, Vol 6 (2014)
A roadside guardrail may be constructed near slopes. The desired safety behavior is ensured not only by the guardrail structure itself, but also by the interaction between soil and guardrail post. In the case of horizontal ground, the elastic Winkler
Externí odkaz:
https://doaj.org/article/e5aad4ff2ccd47fdbbce3cf044b0bb21
Publikováno v:
The Scientific World Journal, Vol 2014 (2014)
The high-order layerwise element models have been used for damaged plates and shells in the presence of singularities such as crack, cutout, and delamination. In this study, the extension of a proposed finite element model has been tested for free vi
Externí odkaz:
https://doaj.org/article/e6d0abad40994e64a5001c883bd87d52
Publikováno v:
Advances in Civil Engineering. 2018:1-12
Based on the assumption that guardrail systems are placed in soil with horizontal ground, interaction behavior between soil and a post has been presented using some relevant theories such as the theory of subgrade reaction, Winkler’s spring theory,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a512861c5a5e5896727de181738a994
https://doi.org/10.1155/2018/9479452
https://doi.org/10.1155/2018/9479452
Publikováno v:
Composite Structures. 143:317-323
This study concerns circumferentially cracked pipes repaired by composite materials subjected to an axial tension. For this purpose, a cylindrical discrete-layer model with a simple and efficient approximation approach is proposed to implement parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9127a0b15679f185ab23e3de6957963
https://doi.org/10.1016/j.compstruct.2016.02.044
https://doi.org/10.1016/j.compstruct.2016.02.044
Publikováno v:
Mathematical Problems in Engineering, Vol 2015 (2015)
This paper deals with the hierarchical laminated shell elements with nonsensitivity to adverse conditions for linear static analysis of cylindrical problems. Displacement approximation of the elements is established by high-order shape functions usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63366f0fefb267f861f3f62aa1de603a
https://doi.org/10.1155/2015/301054
https://doi.org/10.1155/2015/301054
Autor:
Kwang S. Woo, Jae S. Ahn
Publikováno v:
Mathematical Problems in Engineering, Vol 2017 (2017)
The primary objectives of this study are twofold. Firstly, the original SPR method of stress recovery has been modified by incorporating the kriging interpolation technique to fit a polynomial to the derivatives recovered at the Gauss points. For thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71d06b2145a0a6249bb4ef155cf24066
https://doaj.org/article/43920c9332524e3683f961a50c00851a
https://doaj.org/article/43920c9332524e3683f961a50c00851a