Journal of the Mechanical Behavior of Biomedical Materials
ISSN: 1751--6161
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Datasets associated with articles published in Journal of the Mechanical Behavior of Biomedical Materials
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Two datasets, contained in this websites, are collected on specimen No 10: > a dataset collected from DIC system - file series named using the following pattern: Acciaioli_Spec_No_10_1st_series_DIC_"ORD"_repetition_Gen_"SIDE"_Stage_"N".txt where -ORD is the ordinal number for the repetition. It varies from the 1st to the 8th; -SIDE is the target generatrix of the two cameras. It can take the value 0 or 180; -N is load stage number. It varies from 0 (undeformed reference stage) to 6 or 7 (final deformation stage). > a dataset collected from two extensometers - file series named using the following pattern: Acciaioli_Spec_No_10_2nd_series_EXT_"ORD"_repetition_data.csv where -ORD is the ordinal number for the repetition. It varies from the 1st to the 8th. DIC raw data are arranged in columns, starting from the 6th row. Each row refers to a subset. There are six values in each row. The first three values are the x, y and z coordinates of the subset in the undeformed reference stage (stage 0), whereas, the last three x’, y’ and z’ coordinates are in the current load stage (stage N). The load values of the undeformed reference stage and current stage are reported in the 2nd and 3rd cell of load (third) line, respectively. Additionally, the file: Acciaioli_Coordinate_reference_system_for_DIC_data.jpg shows the coordinate reference system used, in which two nominal levels represents the knife edges of the extensometer attached to the specimen surface. The virtual extensometer was created between these two levels. Therefore, the current vertical positions of upper and lower knife edge was calculated for each stage, as well as the distance between the two arms of the virtual extensometer. These three values are reported in the 5th, 6th and 7th cell of third line of each file named using the following pattern: Acciaioli_Spec_No_10_1st_series_DIC_"ORD"_repetition_Gen_"SIDE"_Stage_"N"_processed_data.txt Load level values and the distance between the two arms of the virtual extensometer are reported in the self-explanatory file: Acciaioli_Spec_No_10_1st_series_DIC_data_processing.xls where we described the sequence of operations performed to calculate EappDIC values. Moving to the extensometer technique (.csv files), strain values measured by two extensometers are coupled with stress values. Indeed, there are three values in each row. The first value is the stress value in MPa. The second and third values are collected on two opposite generatrices (0-180° or 90-270°) simultaneously. Stress and strain values were reported in the self-explanatory file: Acciaioli_Spec_No_10_2nd_series_EXT_data_processing.xls where the sequence of operations performed, was described to calculate EappEXT values. Final note: all these files were created for explanatory purposes. Two Matlab codes have been created to calculate EappDIC and EappEXT values by automatic processing of experimental data.
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