Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling
Numerous structures gain inspiration from nature and have been effectively incorporated into different applications such as automobiles and airplanes. In order to effectively withstand impact loads and achieve efficient energy absorption, it is necessary to incorporate appropriate structures alon...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
2024
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/113245/ http://psasir.upm.edu.my/id/eprint/113245/3/113245.pdf |
| _version_ | 1848866169550798848 |
|---|---|
| author | Adithya, RN Balan Ganapathy, Sakthi Sakthivel, Aravind Raj Hameed Sultan, Mohamed Thariq Shahar, Farah Syazwani |
| author_facet | Adithya, RN Balan Ganapathy, Sakthi Sakthivel, Aravind Raj Hameed Sultan, Mohamed Thariq Shahar, Farah Syazwani |
| author_sort | Adithya, RN |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Numerous structures gain inspiration from nature and have been effectively incorporated into
different applications such as automobiles and airplanes. In order to effectively withstand impact
loads and achieve efficient energy absorption, it is necessary to incorporate appropriate structures
along with suitable filler materials. This study examines the energy absorption capacities of a nacre
structured core with foam filling at the central nacre cell cavities, as well as an acrylic filling at the top
and bottom sides, under low velocity impacts. The design of experiments involved identifying and
varying three important design parameters which influence the energy absorption behavior of the
composites. Subsequently, fillers were incorporated and the specimens were subjected to drop
weight testing. The composite material exhibited minimal deformations while absorbing a maximum
energy of 40.87 J. Therefore, it proved that this composite could withstand dynamic impact loads in
the absence of fiber face sheets, and adhesion between the PLA-carbon fiber and acrylic fill was also
improved under these conditions. The higher energy absorption behavior was obtained due to the
intermittent force transfer in the transverse direction due to the presence of the cross webs on the
top and bottom of the composite plate. The alternate arrangement of the hard and flexible materials
in the composite leads to the suppression of the stress step by step which results in high energy absorption behavior. In order to achieve optimal energy absorption with minimized deformations, the core structure must possess a nacre wall thickness of 2 mm with double cross web design. |
| first_indexed | 2025-11-15T14:16:20Z |
| format | Article |
| id | upm-113245 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:16:20Z |
| publishDate | 2024 |
| publisher | SAGE Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1132452024-11-18T05:05:03Z http://psasir.upm.edu.my/id/eprint/113245/ Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling Adithya, RN Balan Ganapathy, Sakthi Sakthivel, Aravind Raj Hameed Sultan, Mohamed Thariq Shahar, Farah Syazwani Numerous structures gain inspiration from nature and have been effectively incorporated into different applications such as automobiles and airplanes. In order to effectively withstand impact loads and achieve efficient energy absorption, it is necessary to incorporate appropriate structures along with suitable filler materials. This study examines the energy absorption capacities of a nacre structured core with foam filling at the central nacre cell cavities, as well as an acrylic filling at the top and bottom sides, under low velocity impacts. The design of experiments involved identifying and varying three important design parameters which influence the energy absorption behavior of the composites. Subsequently, fillers were incorporated and the specimens were subjected to drop weight testing. The composite material exhibited minimal deformations while absorbing a maximum energy of 40.87 J. Therefore, it proved that this composite could withstand dynamic impact loads in the absence of fiber face sheets, and adhesion between the PLA-carbon fiber and acrylic fill was also improved under these conditions. The higher energy absorption behavior was obtained due to the intermittent force transfer in the transverse direction due to the presence of the cross webs on the top and bottom of the composite plate. The alternate arrangement of the hard and flexible materials in the composite leads to the suppression of the stress step by step which results in high energy absorption behavior. In order to achieve optimal energy absorption with minimized deformations, the core structure must possess a nacre wall thickness of 2 mm with double cross web design. SAGE Publications 2024-07-31 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/113245/3/113245.pdf Adithya, RN and Balan Ganapathy, Sakthi and Sakthivel, Aravind Raj and Hameed Sultan, Mohamed Thariq and Shahar, Farah Syazwani (2024) Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling. International Journal of Protective Structures. pp. 1-20. ISSN 2041-4196; eISSN: 2041-420X (In Press) https://journals.sagepub.com/doi/10.1177/20414196241271456 10.1177/20414196241271456 |
| spellingShingle | Adithya, RN Balan Ganapathy, Sakthi Sakthivel, Aravind Raj Hameed Sultan, Mohamed Thariq Shahar, Farah Syazwani Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling |
| title | Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling |
| title_full | Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling |
| title_fullStr | Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling |
| title_full_unstemmed | Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling |
| title_short | Dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling |
| title_sort | dynamic loading response of an additively produced bio-inspired nacre structure with foam and acrylic filling |
| url | http://psasir.upm.edu.my/id/eprint/113245/ http://psasir.upm.edu.my/id/eprint/113245/ http://psasir.upm.edu.my/id/eprint/113245/ http://psasir.upm.edu.my/id/eprint/113245/3/113245.pdf |