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   https://doi.org/10.1038/ncomms15302  

   Chen, Gong; Kang, Sang Pyo; Ophus, Colin; N’Diaye, Alpha T.; Kwon, Hee Young; Qiu, Ryan T.; Won, Changyeon; Liu, Kai; Wu, Yizheng; Schmid, Andreas K. (May 2017, Nature Communications)
2. In-plane and out-of-plane deformations of gilt utero-sacral ligaments

   https://doi.org/10.1016/j.jmbbm.2022.105249  

   Donaldson, Kandace; Thomas, Joseph; Zhu, Yizheng; Clark-Deener, Sherrie; Alperin, Marianna; De Vita, Raffaella (July 2022, Journal of the Mechanical Behavior of Biomedical Materials)
3. Split Cuts in the Plane

   https://doi.org/10.1137/20M1324521  

   Basu, Amitabh; Conforti, Michele; Di Summa, Marco; Jiang, Hongyi (January 2021, SIAM Journal on Optimization)

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4. Ductile Fracture in Plane Stress

   https://doi.org/10.1115/1.4052106  

   Torki, Mohammad; Benzerga, Ahmed Amine (January 2022, Journal of Applied Mechanics)

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   Abstract A micromechanics-based ductile fracture initiation theory is developed and applied for high-throughput assessment of ductile failure in plane stress. A key concept is that of inhomogeneous yielding such that microscopic failure occurs in bands with the driving force being a combination of band-resolved normal and shear tractions. The new criterion is similar to the phenomenological Mohr–Coulomb model, but the sensitivity of fracture initiation to the third stress invariant constitutes an emergent outcome of the formulation. Salient features of a fracture locus in plane stress are parametrically analyzed. In particular, it is shown that a finite shear ductility cannot be rationalized based on an isotropic theory that proceeds from first principles. Thus, the isotropic formulation is supplemented with an anisotropic model accounting for void rotation and shape change to complete the prediction of a fracture locus and compare with experiments. A wide body of experimental data from the literature is explored, and a simple procedure for calibrating the theory is outlined. Comparisons with experiments are discussed in some detail. 

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5. Resolving in-plane and out-of-plane mobility using time resolved microwave conductivity

   https://doi.org/10.1039/D0TC00328J  

   Chattopadhyay, Shirsopratim; Kokenyesi, Robert S.; Hong, Min Ji; Watts, C Lowell; Labram, John G. (August 2020, Journal of Materials Chemistry C)

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   The contactless characterization technique time resolved microwave conductivity (TRMC) provides a means to rapidly and unambiguously approximate carrier mobilities and lifetimes for a variety of semiconducting materials. When using a cavity-based approach however, the technique can conventionally only resolve carrier mobilities in the plane of the substrate. In solar cells, charge carriers are extracted in the direction perpendicular to the substrate, therefore it would be beneficial if one were able to evaluate the mobility in this direction also. Here we present a novel approach for resolving charge carrier mobilities in different planes within a sample. Using a range of 3D-printed sample holders, where the sample is held at various angles relative to the incident light, we are able to simultaneously resolve the mobility in the plane of the sample and out of the plane of the sample. As examples, we have studied the 3-dimensional corner-connected metal halide perovskite methylammonium lead iodide and the 2-dimensional perovskite precusor, lead iodide. 

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