Cross-scale mechanical characterization of shale and marlstone rocks from nanoindentation, microindentation, and triaxial tests: implications for mechanical upscaling from micro to macro scale

There are original data to draw the figures. One is to obtain the clustering analysis results from indentation data of various shales and marlstone (Figure 9). One is to obtain the deviatoric stress‒strain curves at various confining pressures (0 MPa, 20 MPa, and 40 MPa) for all the samples (Figure 12). One is to obtain the comparison between the results of predicted moduli with the static Young's modulus and the relative errors (Figure 14).本数据集包含用于绘制各附图的原始实验数据，具体分为三类：其一为基于多种页岩与泥灰岩（marlstone）的压痕数据得到的聚类分析结果，对应图9；其二为所有试样在不同围压（0 MPa、20 MPa、40 MPa）下的偏应力-应变曲线，对应图12；其三为预测模量与静态杨氏模量的对比结果及对应相对误差，对应图14。