@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://dataportal.material-digital.de/dataset/be95ebae-482a-443a-a4a6-57dd46ca94d3> a dcat:Dataset ;
    dct:creator [ a foaf:Agent ;
            vcard:hasEmail <mailto:thomas.bjarsch@igcv.fraunhofer.de> ;
            foaf:name "Thomas Bjarsch" ] ;
    dct:description """This dataset contains about 2000 results from hybrid-specimen tensile tests (both experimental and simulated). Each specimen (identified by `hyb` and optionally a human-readable `hyb_name`) is described by a structured set of metadata covering **geometry** (e.g., overlap length, ply/metal/adhesive thickness, bolt diameter), **joining concept** (binary flags for `bolt` and `adhesive`), and **process/condition information** (e.g., CFRP and metal surface preparation classes, aging state, bolt torque/prestress, friction coefficients, adhesive curing temperatures).\r
\r
Material properties are included for the involved constituents—**CFRP** (tensile strengths in 0°/90°), **metal** (modulus and strength), **bolt** (modulus and strength), and **adhesive** (modulus and strength)—with values coming from datasheets for experiments or serving as input parameters for simulations. Mechanical response is captured through aligned tensile-test statistics (min/max/mean) for **force**, **strain**, and **stress**, plus the full **stress–strain curve** (`stress_val` array) and an overall performance metric, the **hybrid tensile strength** (`hyb_tens_strength_val`, max stress). A boolean `simulated` indicates whether a row originates from simulation or experiment.\r
""" ;
    dct:identifier "be95ebae-482a-443a-a4a6-57dd46ca94d3" ;
    dct:issued "2025-12-17T10:09:42.141786"^^xsd:dateTime ;
    dct:modified "2025-12-17T10:13:18.151393"^^xsd:dateTime ;
    dct:publisher [ a foaf:Agent ;
            vcard:hasEmail <mailto:thomas.bjarsch@igcv.fraunhofer.de> ;
            foaf:name "Thomas Bjarsch" ] ;
    dct:title "Simulated and Experimental Tensile Test Results for Hybrid Materials (CFRP-Steel)" ;
    dcat:contactPoint [ a vcard:Kind ;
            vcard:fn "Thomas Bjarsch" ;
            vcard:hasEmail <mailto:thomas.bjarsch@igcv.fraunhofer.de> ] ;
    dcat:distribution <https://dataportal.material-digital.de/dataset/be95ebae-482a-443a-a4a6-57dd46ca94d3/resource/0b5ec224-5e1b-4dc1-a47f-5ea2a6f1f233> ;
    dcat:qualifiedAttribution [ a dcat:Attribution ] ;
    prov:wasGeneratedBy [ a prov:Activity ] .

<https://dataportal.material-digital.de/dataset/be95ebae-482a-443a-a4a6-57dd46ca94d3/resource/0b5ec224-5e1b-4dc1-a47f-5ea2a6f1f233> a dcat:Distribution ;
    dct:description """### Brief explanation of each variable\r
\r
* **`hyb`**: Unique identifier for the hybrid specimen.\r
* **`hyb_name`**: Human-readable specimen label (for easier identification; not used for training).\r
* **`base_plate_id`**: Identifier of the CFRP base plate (may be missing; not available for simulations).\r
* **`ply_thickness_val`**: Thickness of a single CFRP ply (mm).\r
* **`overlap_len_mm`**: Overlap length of the joint region (mm).\r
* **`cfrp_surf_prep_class`**: Surface preparation category applied to the CFRP.\r
* **`bolt`**: Flag indicating a bolted joint (1 = yes, 0 = no).\r
* **`adhesive`**: Flag indicating an adhesive joint (1 = yes, 0 = no).\r
* **`aging`**: Flag indicating aging treatment (1 = aged, 0 = not aged).\r
* **`cfrp_tens_stren_90_dgr_mpa`**: CFRP tensile strength in 90° direction (MPa).\r
* **`cfrp_tens_stren_0_dgr_mpa`**: CFRP tensile strength in 0° direction (MPa).\r
* **`bolt_tens_strength_val`**: Bolt tensile strength (MPa).\r
* **`bolt_tens_mod_val`**: Bolt Young’s modulus (MPa).\r
* **`adhesive_tens_strength_val`**: Adhesive tensile strength (MPa).\r
* **`adhesive_tens_mod_val`**: Adhesive Young’s modulus (MPa).\r
* **`bolt_diameter_val`**: Bolt diameter (mm).\r
* **`adhesive_thickness_val`**: Thickness of the adhesive layer (mm).\r
* **`torque_val_Nm`**: Applied bolt pretension torque (N·m); null if no bolt.\r
* **`metal_surf_prep_class`**: Surface preparation category applied to the metal part (usually missing for simulations).\r
* **`metal_tens_mod_val`**: Metal Young’s modulus (MPa).\r
* **`metal_tens_strength_val`**: Metal tensile strength (MPa).\r
* **`metal_thick_val`**: Metal thickness (mm).\r
* **`force_val_min`**: Minimum force value in the test curve (N), aligned/interpolated to strain/stress.\r
* **`force_val_max`**: Maximum force value in the test curve (N), aligned/interpolated to strain/stress.\r
* **`force_val_mean`**: Mean force value over the curve (N), aligned/interpolated to strain/stress.\r
* **`strain_val_min`**: Minimum measured strain (dimensionless), aligned to force/stress.\r
* **`strain_val_max`**: Maximum measured strain (dimensionless), aligned to force/stress.\r
* **`strain_val_mean`**: Mean strain over the curve (dimensionless), aligned to force/stress.\r
* **`stress_val`**: Full stress history/curve as an array (MPa), derived from force and adhesion area.\r
* **`stress_val_min`**: Minimum stress value over the curve (MPa), aligned to force/strain.\r
* **`stress_val_max`**: Maximum stress value over the curve (MPa), aligned to force/strain.\r
* **`stress_val_mean`**: Mean stress value over the curve (MPa), aligned to force/strain.\r
* **`hyb_tens_strength_val`**: Hybrid specimen tensile strength (MPa), typically the maximum stress.\r
* **`simulated`**: Data source flag (`true` = simulation, `false` = experiment).\r
* **`adh_temp_val_min`**: Minimum adhesive cure temperature during autoclave cycle (°C).\r
* **`adh_temp_val_max`**: Maximum adhesive cure temperature during autoclave cycle (°C).\r
* **`adh_temp_val_mean`**: Mean adhesive cure temperature during autoclave cycle (°C).\r
* **`friction_steel_steel_val`**: Friction coefficient between screw/bolt and metal plate (dimensionless).\r
* **`friction_steel_cfrp_val`**: Friction coefficient between screw/bolt and CFRP plate (dimensionless).\r
* **`prestress_val_N`**: Bolt pre-stress (pretension force) applied to the joint (N).\r
""" ;
    dct:format "JSON" ;
    dct:issued "2025-12-17T10:11:46.164528"^^xsd:dateTime ;
    dct:modified "2025-12-17T10:11:46.300961"^^xsd:dateTime ;
    dct:title "20250827_output.json" ;
    dcat:accessService [ a dcat:DataService ] ;
    dcat:accessURL <https://dataportal.material-digital.de/dataset/be95ebae-482a-443a-a4a6-57dd46ca94d3/resource/0b5ec224-5e1b-4dc1-a47f-5ea2a6f1f233/download/20250827_output.json> ;
    dcat:mediaType "application/json" .

