In situ micro-XRCT data sets of an open-cell polyurethane foam sample under combined loading conditions (compression + torsion, tension) (doi:10.18419/darus-2834)

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Part 2: Study Description
Part 3: Data Files Description
Part 4: Variable Description
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In situ micro-XRCT data sets of an open-cell polyurethane foam sample under combined loading conditions (compression + torsion, tension)

doi:10.18419/darus-2834

DaRUS

2023-04-04

1

Ruf, Matthias; Steeb, Holger, 2023, "In situ micro-XRCT data sets of an open-cell polyurethane foam sample under combined loading conditions (compression + torsion, tension)", https://doi.org/10.18419/darus-2834, DaRUS, V1, UNF:6:mBGU8dC4irutNHDUz0h2Kg== [fileUNF]

In situ micro-XRCT data sets of an open-cell polyurethane foam sample under combined loading conditions (compression + torsion, tension)

doi:10.18419/darus-2834

Ruf, Matthias (University of Stuttgart, Institute of Applied Mechanics (CE))

Steeb, Holger (University of Stuttgart, Institute of Applied Mechanics (CE) & SC SimTech)

Ruf, Matthias

Steeb, Holger

Institute of Applied Mechanics (CE) - Chair for Continuum-Mechanics

Cluster of Excellence EXC 2075 "SimTech"

2021

357361983

DaRUS

Steeb, Holger

https://doi.org/10.18419/darus-2834

Computer and Information Science, Earth and Environmental Sciences, Engineering, Polyurethane Foam (PUR), Micro X-Ray Computed Tomography (micro-XRCT), X-Ray Microtomography, In Situ, Porous Media

Thermodynamics and Kinetics as well as Properties of Phases and Microstructure of Materials, Polymeric and Biogenic Materials and Derived Composites, Mechanics

This dataset contains eight micro X-ray Computed Tomography (micro-XRCT) scan data sets (projection, reconstructed, and binarized images, respectively) of the identical open-cell reticulated polyurethane (PUR) foam sample with 10 pores per inch under different loads. The initial diameter and length of the unloaded cylindrical sample were 50 mm and 46.5 mm. The sample was glued on two sample holders to apply compression, tension, and torsion, cf. Ruf & Steeb (2023). The sample was subjected to two load protocols, A and B. Load protocol A consisted of the following steps: <ol> <li>initial state: &#949 = 0.0; &#966 = 0.0 degree &#8594 scan "A_t0"</li> <li>(i) twisting &#966 = 20.0 degree; (ii) compression &#949 = -0.2 &#8594 scan "A_t1"</li> <li>(i) twisting &#966 = 0.0 degree; (ii) tension &#949 = 0.05 &#8594 scan "A_t2"</li> <li>end state: &#949 = 0.0; &#966 = 0.0 degree &#8594 scan "A_t3" ,</li> </ol> and load protocol B of the steps: <ol> <li>initial state: &#949 = 0.0; &#966 = 0.0 degree &#8594 scan "B_t0"</li> <li>(i) compression &#949 = -0.2; (ii) twisting &#966 = 20.0 degree &#8594 scan "B_t1"</li> <li>(i) tension &#949 = 0.05; (ii) twisting &#966 = 0.0 degree &#8594 scan "B_t2"</li> <li>end state: &#949 = 0.0; &#966 = 0.0 degree &#8594 scan "B_t3" .</li> </ol> Here, &#949 = u/l₀ is the axial strain given by the applied uniaxial displacement u in axial direction and the initial sample length l₀ = 46.5 mm. &#966 denotes the twisting angle w.r.t the axial direction. Both protocols were performed displacement/twisting angle controlled with the rates |d&#949/dt| = 0.01 /min and |d&#966/dt| = 1.0 deg/min for all changes, cf. file "protocols_A_and_B_visualization.pdf". The protocols differ only in the order in which the two boundary conditions are applied in steps 2 and 3 to investigate the sequence depending non-linear material behavior of superimposed loads.<br><br> The files "utm_data_protocol_A.csv" and "utm_data_protocol_B.csv" contain the measured displacement, twisting angle, axial force, and torque from the Universal Testing Machine (UTM) over time for load protocols A and B, respectively. Scans were performed at t0, t1, t2, and t3 after 20 min previous relaxation time. A pause of about 12 hours was taken between the two loading protocols to allow the sample to relax. The image data sets are labeled according to the loading protocol (A, B) and the time step the micro-XRCT scan was performed (t0, t1, t2, t3), followed by a specification of the image data set ("projections", "reconstructed", "binarized"). Besides the projection and 3D reconstructed images, binarized images (foam skeleton and pore space) are provided.

Image data

Measurement data

Ruf, M., Lee, D., & Steeb, H. (2023). A multifunctional mechanical testing stage for micro X-ray computed tomography. <em>Review of Scientific Instruments</em>, 94, 085115.

10.1063/5.0153042

Ruf, M., Lee, D., & Steeb, H. (2023). A multifunctional mechanical testing stage for micro X-ray computed tomography. <em>Review of Scientific Instruments</em>, 94, 085115.

Ruf, M., & Steeb, H., (2020). An open, modular, and flexible micro X-ray computed tomography system for research. <em>Review of Scientific Instruments</em>, 91(11), 113102. <a href="https://doi.org/10.1063/5.0019541">https://doi.org/10.1063/5.0019541</a>

• Number of cases: 34201

• No. of variables per record: 5

• Type of File: text/tab-separated-values

UNF:6:cE91+kTzP13/7m+7rpNrQg==

• Number of cases: 34200

• No. of variables per record: 5

• Type of File: text/tab-separated-values

UNF:6:aKqGBK7T1Pwduh5Z+h5Wyw==

• time [s] - time [s]
• displacement [mm] - displacement [mm]
• torsion_angle [deg] - torsion_angle [deg]
• force [N] - force [N]
• torque_moment [Ncm] - torque_moment [Ncm]
• time [s] - time [s]
• displacement [mm] - displacement [mm]
• torsion_angle [deg] - torsion_angle [deg]
• force [N] - force [N]
• torque_moment [Ncm] - torque_moment [Ncm]

f114406 Location:

Summary Statistics: Mean 17100.24009643698; Max. 34200.2383; StDev 9873.122519197335; Valid 34201.0; Min. 0.24

Variable Format: numeric

Notes: UNF:6:p3ETPCxWYT6H26Lu5UweaA==

f114406 Location:

Summary Statistics: Min. -9.3002; Max. 2.3251; Mean -2.1617207099208806; StDev 4.535136011099976; Valid 34201.0

Variable Format: numeric

Notes: UNF:6:XJXwOG5CFloA6+CsPg33nA==

f114406 Location:

Summary Statistics: Max. 20.0; Mean 5.9647378731621785; StDev 8.890486380010163; Min. 0.0; Valid 34201.0;

Variable Format: numeric

Notes: UNF:6:wFhIEHjpe9MUjwKDeB/zJA==

f114406 Location:

Summary Statistics: Min. -7.785; Mean 0.7356893073302097; Valid 34201.0; StDev 6.610462663680122; Max. 16.71;

Variable Format: numeric

Notes: UNF:6:n4+Uc0NBEmuScQMLkaE29w==

f114406 Location:

Summary Statistics: Max. 14.78; Mean 0.4043808660566495; Min. -5.63; StDev 2.9188858881290236; Valid 34201.0

Variable Format: numeric

Notes: UNF:6:moUhOiBzefMvaex6uEgA1w==

f114407 Location:

Summary Statistics: Min. 0.66; Valid 34200.0; Max. 34199.6602; StDev 9872.833984683502; Mean 17100.160170058836;

Variable Format: numeric

Notes: UNF:6:K0AZOVuNZAV3ScwqdP3NZQ==

f114407 Location:

Summary Statistics: Mean -2.0801719883044067; Min. -9.2999; Valid 34200.0; Max. 2.325; StDev 4.5938825435712305;

Variable Format: numeric

Notes: UNF:6:THfmyL9YsDhLsfek5lzGow==

f114407 Location:

Summary Statistics: StDev 8.890557851874116; Min. 0.0; Mean 5.964912280701356; Max. 20.0; Valid 34200.0;

Variable Format: numeric

Notes: UNF:6:Gl1O5UmY1b7SCLs4VqTLNQ==

f114407 Location:

Summary Statistics: Mean 2.138631578947167; StDev 6.202779186995124; Valid 34200.0; Min. -6.525; Max. 20.885

Variable Format: numeric

Notes: UNF:6:lsuyPtkGY61j52esd2FMow==

f114407 Location:

Summary Statistics: Min. -4.05; Mean 0.33171520467836996; Valid 34200.0; Max. 16.53; StDev 3.684434850163201

Variable Format: numeric

Notes: UNF:6:B1QLV1UvbR+ecfcrELH9tA==

Label:

datasheet_Polyurethane_Foam PPI_10.pdf

Text:

Datasheet of the used Polyurethane Foam PPI 10.

application/pdf

Label:

protocols_A_and_B_visualization.pdf

Text:

Visualization of the displacement and torsion angle controlled load protocols A and B.

application/pdf

Label:

A_t0_binarized.tar.gz

Text:

Segmented data set of "A_t0_reconstructed.tar.gz" (z = 0075-0690) in *.tif file format. 972x972x616 voxel, uniform voxel size 68 µm. Protocol A, step t0.

application/x-gzip

Label:

A_t0_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol A, step t0.

application/x-gzip

Label:

A_t0_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "A_t1_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol A, step t1.

application/x-gzip

Label:

A_t1_binarized.tar.gz

Text:

Segmented data set of "A_t1_reconstructed.tar.gz" (z = 0075-0553) in *.tif file format. 972x972x479 voxel, uniform voxel size 68 µm. Protocol A, step t1.

application/x-gzip

Label:

A_t1_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol A, step t1.

application/x-gzip

Label:

A_t1_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "A_t1_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol A, step t1.

application/x-gzip

Label:

A_t2_binarized.tar.gz

Text:

Segmented data set of "A_t2_reconstructed.tar.gz" (z = 0075-0726) in *.tif file format. 972x972x652 voxel, uniform voxel size 68 µm. Protocol A, step t2.

application/x-gzip

Label:

A_t2_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol A, step t2.

application/x-gzip

Label:

A_t2_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "A_t2_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol A, step t2.

application/x-gzip

Label:

A_t3_binarized.tar.gz

Text:

Segmented data set of "A_t3_reconstructed.tar.gz" (z = 0075-0690) in *.tif file format. 972x972x616 voxel, uniform voxel size 68 µm. Protocol A, step t3.

application/x-gzip

Label:

A_t3_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol A, step t3.

application/x-gzip

Label:

A_t3_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "A_t3_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol A, step t3.

application/x-gzip

Label:

B_t0_binarized.tar.gz

Text:

Segmented data set of "B_t0_reconstructed.tar.gz" (z = 0075-0690) in *.tif file format. 972x972x616 voxel, uniform voxel size 68 µm. Protocol B, step t0.

application/x-gzip

Label:

B_t0_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol B, step t0.

application/x-gzip

Label:

B_t0_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "B_t0_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol B, step t0.

application/x-gzip

Label:

B_t1_binarized.tar.gz

Text:

Segmented data set of "B_t1_reconstructed.tar.gz" (z = 0075-0553) in *.tif file format. 972x972x479 voxel, uniform voxel size 68 µm. Protocol B, step t1.

application/x-gzip

Label:

B_t1_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol B, step t1.

application/x-gzip

Label:

B_t1_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "B_t1_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol B, step t1.

application/x-gzip

Label:

B_t2_binarized.tar.gz

Text:

Segmented data set of "B_t2_reconstructed.tar.gz" (z = 0075-0726) in *.tif file format. 972x972x652 voxel, uniform voxel size 68 µm. Protocol B, step t2.

application/x-gzip

Label:

B_t2_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol B, step t2.

application/x-gzip

Label:

B_t2_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "B_t2_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol B, step t2.

application/x-gzip

Label:

B_t3_binarized.tar.gz

Text:

Segmented data set of "B_t3_reconstructed.tar.gz" (z = 0075-0690) in *.tif file format. 972x972x616 voxel, uniform voxel size 68 µm. Protocol B, step t3.

application/x-gzip

Label:

B_t3_projections.tar.gz

Text:

Projection images (360 deg, angle increment 0.25 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. Protocol B, step t3.

application/x-gzip

Label:

B_t3_reconstructed.tar.gz

Text:

Reconstructed micro-XRCT data set of "B_t3_projections.tar.gz" in 16 bit *.tif file format. 972x972x768 voxel, uniform voxel size of 68 µm. Protocol B, step t3.

application/x-gzip