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Part 1: Document Description
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Citation |
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Title: |
Humidity and thermal triggered Shape Memory Effect - Rheology-based numerical modelling - Thermal Humid Mechanical Cycle |
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Identification Number: |
doi:10.18419/darus-2023 |
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Distributor: |
DaRUS |
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Date of Distribution: |
2021-06-22 |
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Version: |
1 |
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Bibliographic Citation: |
Fauser, Dominik; Steeb, Holger, 2021, "Humidity and thermal triggered Shape Memory Effect - Rheology-based numerical modelling - Thermal Humid Mechanical Cycle", https://doi.org/10.18419/darus-2023, DaRUS, V1, UNF:6:kJCrJ2myXSEklpfIfr7AfQ== [fileUNF] |
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Citation |
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Title: |
Humidity and thermal triggered Shape Memory Effect - Rheology-based numerical modelling - Thermal Humid Mechanical Cycle |
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Identification Number: |
doi:10.18419/darus-2023 |
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Authoring Entity: |
Fauser, Dominik (University of Stuttgart, Institute of Applied Mechanics (CE)) |
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Steeb, Holger (University of Stuttgart, Institute of Applied Mechanics (CE) & SC SimTech) |
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Other identifications and acknowledgements: |
Fauser, Dominik |
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Other identifications and acknowledgements: |
Steeb, Holger |
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Producer: |
University of Stuttgart, Institute of Applied Mechanics (CE) - Chair for Continuum-Mechanics |
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University of Stuttgart - Cluster of Excellence EXC 2075 "SimTech" |
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Date of Production: |
2021-03-25 |
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Distributor: |
DaRUS |
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Access Authority: |
Steeb, Holger |
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Depositor: |
Fauser, Dominik |
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Date of Deposit: |
2021-06-09 |
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Holdings Information: |
https://doi.org/10.18419/darus-2023 |
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Study Scope |
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Keywords: |
Chemistry, Computer and Information Science, Earth and Environmental Sciences, Engineering, Physics, Thermo-Mechanical Cycle, Shape Memory Polymer, Shape Recovery, Shape Fixity |
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Abstract: |
This data contains a Thermal Humid Mechanical Cycle (THMC) of Shape Memory Polymers (SMP). The SMP is a polyurethane-based Polymer, which is produced from SMP Technologies Inc. The SMP filament were processed with a 3D printer (Ultimaker 3, Ultimaker, Geldermarsen, Netherlands). <p> <p> The THMC is divided into a preheating step, a programming step and a stress-free recovery step. A preheating step was performed before the THMC, to relieve residual stresses stored by the manufacturing process. Then the temperature is set to T_trans = 55 °C and waited until the sample is in thermodynamic equilibrium. <p> A displacement of s_max = 2.5 mm is performed and fixed. In the same step, the thermal chamber is set to cooling, by setting a lower temperature T_1 = 50 °C, to speed up the cooling process. In the next step the displacement s_max is kept fixed and the temperature is decreased to T_low = 30 °C. <p> Once the sample is in thermodynamic equilibrium, the fixation is released and the stress free recovery step by setting the normal force to F_N = 0 N is performed. Humidity-dependent recovery of the initial geometry is performed by increasing the relative humidity to RH = 70 %. <p> <p> By performing a THMC, the thermal shape fixation and humidity-dependent shape recovery are captured. Here it can be seen that the programmed shape can also be recovered by higher humidity. |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Other Study Description Materials |
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Related Materials |
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The material is a polyurethane-based Shape Memory Polymer. Information about the material can be found in the material description of the company SMP Technologies Inc. or in publications, e.g. <a href="https://doi.org/10.1039/B922943D">Huang, 2010</a>. |
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Related Studies |
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Fauser, Dominik; Steeb, Holger, 2021, "Humidity and thermal triggered Shape Memory Effect - Rheology-based numerical modelling - Dynamic Mechanical Thermal Humidity Analysis", <a href="https://doi.org/10.18419/darus-2021">https://doi.org/10.18419/darus-2021</a>, DaRUS. <p> Fauser, Dominik; Kuhn, Moritz; Steeb, Holger, 2021, "Humidity and thermal triggered Shape Memory Effect - Rheology-based numerical modelling - Diffusion measurements", <a href="https://doi.org/10.18419/darus-2024">https://doi.org/10.18419/darus-2024</a>, DaRUS. |
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Related Publications |
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Citation |
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Title: |
Fauser, Dominik; Steeb, Holger, (2021), "Influence of Humidity on the Rheology of Thermoresponsive Shape Memory Polymers", Journal of Materials Science (under review). |
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Bibliographic Citation: |
Fauser, Dominik; Steeb, Holger, (2021), "Influence of Humidity on the Rheology of Thermoresponsive Shape Memory Polymers", Journal of Materials Science (under review). |
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File Description--f64462 |
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File: thmc_SMP_0_70.tab |
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Notes: |
UNF:6:kJCrJ2myXSEklpfIfr7AfQ== |
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List of Variables: |
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Variables |
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f64462 Location: |
Summary Statistics: Max. 2.0; Min. 1.0; Valid 24697.0; Mean 1.0037251488034997; StDev 0.060921444074781374 Variable Format: numeric Notes: UNF:6:VrCqq5TlUZyv+qX6ry+j7g== |
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f64462 Location: |
Summary Statistics: Min. 1.0; Mean 6.562659432319803; Valid 24697.0; StDev 1.1495919144753703; Max. 7.0; Variable Format: numeric Notes: UNF:6:ThT5rZRC4/SYct5xEJHuRA== |
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f64462 Location: |
Variable Format: character Notes: UNF:6:Vkl+IiqcC+AqRYbo0Z2tSg== |
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f64462 Location: |
Summary Statistics: Max. 78.44; Mean 30.859867401970902; Min. 24.92; Valid 24661.0; StDev 4.291803313284543 Variable Format: numeric Notes: UNF:6:IFzUutFGqJRx+r9C8n/5lQ== |
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f64462 Location: |
Summary Statistics: Min. 24.382; Mean 25.979096508657392; StDev 0.8855015879255126; Max. 27.339; Valid 24661.0 Variable Format: numeric Notes: UNF:6:agaJAApo6GvQFnxBnIwilg== |
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f64462 Location: |
Summary Statistics: Max. 434800.0; Min. 91.68; Mean 192433.55391830666; Valid 24661.0; StDev 136158.78914265384 Variable Format: numeric Notes: UNF:6:5FYRabveB5+eHH41QZ1IvA== |
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f64462 Location: |
Summary Statistics: Valid 24661.0; StDev 136141.55064238142; Max. 429225.62; Min. 5.0; Mean 186851.6541548839 Variable Format: numeric Notes: UNF:6:dRO/Wp8koLrCG7n2vNPikw== |
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f64462 Location: |
Summary Statistics: Valid 24661.0; Max. 10.363; Min. -0.77236; StDev 3.616260333415107; Mean 4.997359627509045 Variable Format: numeric Notes: UNF:6:zXDFNBZst0MFZmvgO5arDw== |
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f64462 Location: |
Summary Statistics: Mean 2.3854596326172794; Max. 26.62; StDev 6.70932362645603; Min. -1.4; Valid 24661.0 Variable Format: numeric Notes: UNF:6:cGl04nNiJ26WJmYvISh4WQ== |
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f64462 Location: |
Summary Statistics: Max. 2.526; StDev 0.8813785524658707; Valid 24661.0; Mean 1.21798406390658; Min. -0.188 Variable Format: numeric Notes: UNF:6:BSYOJqOjLx5btHtQaQRs0g== |
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f64462 Location: |
Summary Statistics: Max. 74.08; StDev 23.46967114429035; Min. 0.4; Valid 24661.0; Mean 60.82254598434734 Variable Format: numeric Notes: UNF:6:Hrfzp4jmb+wABAu0AlW3pA== |
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f64462 Location: |
Summary Statistics: StDev 0.0; Max. 1.35; Valid 24697.0; Mean 1.35; Min. 1.35; Variable Format: numeric Notes: UNF:6:J/0Ajcj/ZUKkblnJThKpaQ== |
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f64462 Location: |
Summary Statistics: Mean 9.36; Valid 24697.0; Min. 9.36; Max. 9.36; StDev 0.0 Variable Format: numeric Notes: UNF:6:8wctvXNN/nMXrdiDRy76qg== |