冠状动脉聚酰胺12球囊导管膜的实验与数学表征

数据集获取（Figshare）

• 源站标题：Experimental and Mathematical Characterization of Coronary Polyamide 12 Balloon Catheter Membranes
• DOI：10.6084/m9.figshare.12116715.v2
• 发布日期：2020-04-12
• 文件数：2 个
• 文件总体积：945.29 KB
• 源站页面：https://figshare.com/articles/dataset/Geith_2020_-_ExpData/12116715

命令行下载

curl -L -o "Geith 2020 - ExpData.7z" "https://ndownloader.figshare.com/files/22282947"
curl -L -o "README.pdf" "https://ndownloader.figshare.com/files/22282950"

文件清单

• Geith 2020 - ExpData.7z（893.29 KB）
• README.pdf（52.00 KB）

文件总体积 945.29 KB（源站 API 实测）。

数据加载示例（图像类）

from PIL import Image
import glob, os

files = (glob.glob(os.path.join(path, "**", "*.png"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.jpg"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.tif"), recursive=True))
print("图像文件数:", len(files))
img = Image.open(files[0]); print("尺寸/模式:", img.size, img.mode)

# torchvision Dataset 方式:
# from torchvision import datasets
# ds = datasets.ImageFolder(path)  # 要求 子目录=类别

目录组织与标注格式以源站说明和下载后实际文件为准。

数据说明

The experimental quantification and modeling of the multiaxial mechanical response of polymer membranes of coronary balloon catheters have not yet been carried out.
Due to the lack of knowledge of such a study, it is not known whether isotropic material models can describe the material response of balloon catheter membranes expanded with the nominal or an even higher pressure. Therefore, for the first time, specimens of commercial polyamide 12 balloon catheters membranes were observed by performing uniaxial and biaxial extension tests. The quasi-static and dynamic testing scenarios include rupture, relaxation, and equibixial testing procedures. Novel clamping techniques are described, which allow even to test tiny specimens taken from the balloon membranes. The results of this study reveal the semi-compliant, nonlinear, and viscoelastic character of polyamide 12 balloon catheter membranes.
Above nominal pressure, the membranes show a pronounced anisotropic mechanical behavior with a stiffer response in the circumferential direction.
The anisotropic feature intensifies with an increasing strain-rate. A modified polynomial model was applied to represent the realistic mechanical response of the balloon catheter membranes during dynamic biaxial extension tests.
This study also includes a compact set of constitutive model parameters for the use of the proposed model in future finite element analyses to perform more accurate simulations of expanding balloon catheters.

This data set contains experimental data collected in biaxial tensile tests presented in Figs 6,
7, 8, 9, 10, 13, 14, and the Cauchy stress-stretch relation until failure of
the median and all single samples as depicted in Fig 12 in the respective publication.

See the attached readme file for a description of the data.

许可

CC BY 4.0

引用

学术使用请引用 DOI 10.6084/m9.figshare.12116715.v2（source: https://figshare.com/articles/dataset/Geith_2020_-_ExpData/12116715）。