Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing Application
Abstract Nature has long served as a source of inspiration for the development of new materials, with foam‐like structures in citrus fruits such as oranges and pomelos serving as examples of efficient energy dissipation. Inspired by the internal structure of citrus fruit, soft conductive silicone fo...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-04-01
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| Series: | Macromolecular Materials and Engineering |
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| Online Access: | https://doi.org/10.1002/mame.202400273 |
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| author | Rene Preuer Jan Sleichrt Daniel Kytyr Philip Lindner Umut Cakmak Ingrid Graz |
| author_facet | Rene Preuer Jan Sleichrt Daniel Kytyr Philip Lindner Umut Cakmak Ingrid Graz |
| author_sort | Rene Preuer |
| collection | DOAJ |
| description | Abstract Nature has long served as a source of inspiration for the development of new materials, with foam‐like structures in citrus fruits such as oranges and pomelos serving as examples of efficient energy dissipation. Inspired by the internal structure of citrus fruit, soft conductive silicone foams are fabricated. The foams are made from a polydimethylsiloxane (PDMS) by mold casting using sugar templates. Addition of silicone oil and carbon black to the silicone allows creation of extremely soft foams that serve as resistive sensor. Completed by a pneumatic radial compression actuator (PRCA) surrounding the foams like a ring in analogy to citrus fruit peel, smart tunable dampers with sensing capabilities are demonstrated. The foams are evaluated for their electrical and mechanical properties alone as well as in conjunction with the PRCA. When pressurized, the PRCA radially compresses the smart foams, allowing to tune their stiffness and thus damping properties. Tunability of this system is evaluated by means of ball drop tests with respect to damping as well as the sensor performance regarding its sensitivity and stability. Overall, the study provides valuable insights into the behavior of conductive silicone foams and their potential as cushioning and impact sensing material. |
| format | Article |
| id | doaj-art-e28f2ef5b4ac4386858c62c8b5cbe886 |
| institution | OA Journals |
| issn | 1438-7492 1439-2054 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Macromolecular Materials and Engineering |
| spelling | doaj-art-e28f2ef5b4ac4386858c62c8b5cbe8862025-08-20T02:26:36ZengWiley-VCHMacromolecular Materials and Engineering1438-74921439-20542025-04-013104n/an/a10.1002/mame.202400273Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing ApplicationRene Preuer0Jan Sleichrt1Daniel Kytyr2Philip Lindner3Umut Cakmak4Ingrid Graz5Christian Doppler Laboratory for Soft Structures for Vibration Isolation and Impact Protection (ADAPT)School of EducationSTEM EducationJohannes Kepler University LinzAltenbergerstrasse 69Linz4040AustriaCzech Academy of SciencesInstitute of Theoretical and Applied MechanicsProsecká 809/76 Prague 9 190 00 Czech RepublicCzech Academy of SciencesInstitute of Theoretical and Applied MechanicsProsecká 809/76 Prague 9 190 00 Czech RepublicInstitute of Semiconductor and Solid State PhysicsSolid State Physics DivisionJohannes Kepler University LinzAltenbergerstrasse 69Linz4040AustriaInstitute of Polymer Product EngineeringJohannes Kepler University LinzAltenbergerstrasse 69Linz4040AustriaChristian Doppler Laboratory for Soft Structures for Vibration Isolation and Impact Protection (ADAPT)School of EducationSTEM EducationJohannes Kepler University LinzAltenbergerstrasse 69Linz4040AustriaAbstract Nature has long served as a source of inspiration for the development of new materials, with foam‐like structures in citrus fruits such as oranges and pomelos serving as examples of efficient energy dissipation. Inspired by the internal structure of citrus fruit, soft conductive silicone foams are fabricated. The foams are made from a polydimethylsiloxane (PDMS) by mold casting using sugar templates. Addition of silicone oil and carbon black to the silicone allows creation of extremely soft foams that serve as resistive sensor. Completed by a pneumatic radial compression actuator (PRCA) surrounding the foams like a ring in analogy to citrus fruit peel, smart tunable dampers with sensing capabilities are demonstrated. The foams are evaluated for their electrical and mechanical properties alone as well as in conjunction with the PRCA. When pressurized, the PRCA radially compresses the smart foams, allowing to tune their stiffness and thus damping properties. Tunability of this system is evaluated by means of ball drop tests with respect to damping as well as the sensor performance regarding its sensitivity and stability. Overall, the study provides valuable insights into the behavior of conductive silicone foams and their potential as cushioning and impact sensing material.https://doi.org/10.1002/mame.202400273ball drop experimentconductivitydampingdissipationelastomer foamssensors |
| spellingShingle | Rene Preuer Jan Sleichrt Daniel Kytyr Philip Lindner Umut Cakmak Ingrid Graz Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing Application Macromolecular Materials and Engineering ball drop experiment conductivity damping dissipation elastomer foams sensors |
| title | Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing Application |
| title_full | Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing Application |
| title_fullStr | Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing Application |
| title_full_unstemmed | Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing Application |
| title_short | Conductive Open‐Cell Silicone Foam for Tunable Damping and Impact Sensing Application |
| title_sort | conductive open cell silicone foam for tunable damping and impact sensing application |
| topic | ball drop experiment conductivity damping dissipation elastomer foams sensors |
| url | https://doi.org/10.1002/mame.202400273 |
| work_keys_str_mv | AT renepreuer conductiveopencellsiliconefoamfortunabledampingandimpactsensingapplication AT jansleichrt conductiveopencellsiliconefoamfortunabledampingandimpactsensingapplication AT danielkytyr conductiveopencellsiliconefoamfortunabledampingandimpactsensingapplication AT philiplindner conductiveopencellsiliconefoamfortunabledampingandimpactsensingapplication AT umutcakmak conductiveopencellsiliconefoamfortunabledampingandimpactsensingapplication AT ingridgraz conductiveopencellsiliconefoamfortunabledampingandimpactsensingapplication |