Author: Douglas Holmes
Paper: Elastogranular Mechanics
Elastogranular Mechanics: Buckling, Jamming, and Structure Formation David J. Schunter, Jr., Martin Brandenbourger, Sophia Perriseau, and Douglas P. Holmes, Physical Review Letters, 120, 078002, (2018). Confinement of a slender body into a granular array induces stress localization in the geometrically nonlinear structure, and jamming, reordering, and vertical dislodging of the surrounding granular medium. By varying […]
Paper: Curvature-Induced Instabilities of Shells
Curvature-Induced Instabilities of Shells Matteo Pezzulla, Norbert Stoop, Mark P. Steranka, Abdikhalaq J. Bade, and Douglas P. Holmes, Physical Review Letters, 120, 048002, (2018). Induced by proteins within the cell membrane or by differential growth, heating, or swelling, spontaneous curvatures can drastically affect the morphology of thin bodies and induce mechanical instabilities. Yet, the interaction […]
Paper: Extended Lubrication Theory
Extended lubrication theory: improved estimates of flow in channels with variable geometry Behrouz Tavakol, Guillaume Froehlicher, Douglas P. Holmes, Howard A. Stone, Proceedings of the Royal Society A, 0234, (2017). Abstract: Lubrication theory is broadly applicable to the flow characterization of thin fluid films and the motion of particles near surfaces. We offer an extension […]
Paper: Kirigami Actuators
Kirigami Actuators Marcelo A. Dias, Michael P. McCarron, Daniel Rayneau-Kirkhope, Paul Z. Hanakata, David K. Campbell, Harold S. Park and Douglas P. Holmes, Soft Matter, 13, 9087-9802, (2017). Abstract: Thin elastic sheets bend easily and, if they are patterned with cuts, can deform in sophisticated ways. Here we show that carefully tuning the location and […]
BU Video: Slender Structures
What can we learn from the physics of a slinky? How these materials are inspiring engineers to embrace instability for advanced function. pic.twitter.com/mTcFHwIxnS — Boston University (@BU_Tweets) September 6, 2017
Paper: Generalized Scaling Law of Adhesion
Revisiting the generalized scaling law for adhesion: role of compliance and extension to progressive failure Ahmad R. Mojdehi. Douglas P. Holmes. David A. Dillard, Soft Matter, 13, 7529-7536, (2017). Abstract: A generalized scaling law, based on the classical fracture mechanics approach, is developed to predict the bond strength of adhesive systems. The proposed scaling relationship […]
Talk: Museum of Science
Break it ’til You Make It: Engineering Shapes and Patterns Gordon Current Science & Technology Center Stage, Blue Wing, Level 1 Saturday, August 26; 12:30 pm Abstract: Not long ago, a structure losing stability led to failure and disaster. Instability makes rigid materials useless, so it was something that engineers had to design around. Soft […]
Paper: Friction of extensible strips
Friction of extensible strips: An extended shear lag model with experimental evaluation Ahmad R. Mojdehi. Douglas P. Holmes. David A. Dillard, International Journal of Solids and Structures, 124, 125-134, (2017). Abstract: The role of effective axial compliance on the frictional response of extensible strips is investigated, both experimentally and theoretically. A translational actuator pulled a […]
Paper: Curvature-driven morphing of non-Euclidean shells
Curvature-driven morphing of non-Euclidean shells Matteo Pezzulla, Norbert Stoop, Xin Jiang, Douglas P. Holmes, Proceedings of the Royal Society A, 473(2201), (2017). Abstract: We investigate how thin structures change their shape in response to non-mechanical stimuli that can be interpreted as variations in the structure’s natural curvature. Starting from the theory of non-Euclidean plates and […]
Among most downloaded articles in Extreme Mechanics Letters
Our paper “Buckling of elastic beams embedded in granular media” was among the top 5 most downloaded paper’s in Elsevier’s Extreme Mechanics Letters in 2016: 2016 most downloaded articles