Stress focusing in elastic sheets

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Origami tubes assembled into stiff, yet reconfigurable structures and metamaterials (2015, background): “As discussed in previous literature (1, 4) the large displacement case has a higher stiffness and the rotational hinge formulation in Eq.”
Bar and hinge models for scalable analysis of origami (2017, result): “This phenomenon tends to be more pronounced for large deformation bending and has been studied in previous research (Lobkovsky et al., 1995; DiDonna and Witten, 2001; Witten, 2007).”
Multiple-length-scale elastic instability mimics parametric resonance of nonlinear oscillators (2010, background): “A crumpled elastic sheet presents a complex pattern of random folds focusing the deformation energy [1] while compressing a membrane resting on a soft foundation creates a regular pattern of sinusoidal wrinkles with a broad distribution of energy [2–8].”
Gaussian curvature from flat elastica sheets (2011, background): “These geometric necessities and their elastic consequences are directly encountered in the crumpling of sheets into the third dimension and is reviewed and developed by Witten (2007).”
Geometry of Miura-folded metamaterials (2013, neutral): “θA1 = arcsin sin θA2 sin γA2 sin γA1 : [20]”
Strained Bubbles in van der Waals Heterostructures as Local Emitters of Photoluminescence with Adjustable Wavelength (2019, background): “perturbations (33); as discussed by the authors (20,22-24) this is the reason they act as quantum”