Results 11 to 20 of about 347,338 (355)

A Variational Beam Model for Failure of Cellular and Truss‐Based Architected Materials

Advanced Engineering Materials, EarlyView., 2023
Herein, a versatile and efficient beam modeling framework is developed to predict the nonlinear response and failure of cellular, truss‐based, and woven architected materials. It enables the exploration of their design space and the optimization of their mechanical behavior in the nonlinear regime. A variational formulation of a beam model is presented
Konstantinos Karapiperis, Kaoutar Radi, Zifan Wang, Dennis M. Kochmann   +3 more
wiley   +1 more source

Transient conduit permeability controlled by a shift between compactant shear and dilatant rupture at Unzen volcano (Japan) [PDF]

Solid Earth, 2022
The permeability of magma in volcanic conduits controls the fluid flow and pore pressure development that regulates gas emissions and the style of volcanic eruptions.
Y. Lavallée, Y. Lavallée, T. Miwa, J. D. Ashworth, P. A. Wallace, P. A. Wallace, J. E. Kendrick, J. E. Kendrick, R. Coats, A. Lamur, A. Lamur, A. Hornby, K.-U. Hess, T. Matsushima, S. Nakada, H. Shimizu, B. Ruthensteiner, H. Tuffen   +17 more
doaj   +1 more source

Quantitative Evaluation of Soil Structure and Strain in Three Dimensions under Shear Using X-ray Computed Tomography Image Analysis

Journal of Imaging, 2021
The objective of this study is to quantitatively evaluate the soil structure behavior when under shear stress to understand the mechanism of shear zone formation using a micro-focus X-ray computed tomography (CT) scanner to visualize the internal samples
Shintaro Nohara, Toshifumi Mukunoki
doaj   +1 more source

Flexural Behaviour of RC Beams with a Circular Opening at the Flexural Zone and Shear Zone Strengthened Using Steel Plates

Advances in Civil Engineering, 2021
In this paper, an investigation on the behaviour of RC beams with circular openings in the flexural zone and shear zone strengthened using steel plates is presented.
J. Branesh Robert, R. Angeline Prabhavathy, P. S. Joanna, S. Christopher Ezhil Singh, Sivaraj Murugan, S. Rajkumar, Shubham Sharma   +6 more
doaj   +1 more source

Evolution of shear zones in granular packings under pressure [PDF]

Soft Matter 17, 1814 (2021), 2021
Stress transmission in realistic granular media often occurs under external load and in the presence of boundary slip. We investigate shear localization in a split-bottom Couette cell with smooth walls subject to a confining pressure experimentally and by means of numerical simulations.
arxiv   +1 more source

Analysis of Failure Behavior Based on the Ring Shear Test in a Bedding Rock Landslide of the Three Gorges Reservoir

Frontiers in Earth Science, 2022
Complex geological environment and climatic conditions lead to frequent geological disasters in the Three Gorges Reservoir area. In particular, due to the impact of reservoir impoundment, a large number of landslides have occurred, resulting in huge ...
Wei-na Li, Guang-li Xu, Zhang Yu
doaj   +1 more source

Water pumping in mantle shear zones [PDF]

Nature Communications, 2017
AbstractWater plays an important role in geological processes. Providing constraints on what may influence the distribution of aqueous fluids is thus crucial to understanding how water impacts Earth’s geodynamics. Here we demonstrate that ductile flow exerts a dynamic control on water-rich fluid circulation in mantle shear zones.
Précigout, J., Prigent, C., Palasse, L., Pochon, A.   +7 more
openaire   +8 more sources

Deformation Structures From Splay and Décollement Faults in the Nankai Accretionary Prism, SW Japan(IODP NanTroSEIZE Expedition 316): Evidence for Slow and Rapid Slip in Fault Rocks

Geochemistry, Geophysics, Geosystems, 2020
Drilling during IODP NanTroSEIZE Expedition 316 led to the recovery of cores from the basal décollement in the frontal part of the Nankai accretionary prism and from a splay fault branching from the décollement at 25‐km landward of the prism toe.
O. Fabbri, D. L. Goldsby, F. Chester, A. M. Karpoff, G. Morvan, K. Ujiie, A. Yamaguchi, A. Sakaguchi, C. F. Li, G. Kimura, A. Tsutsumi, E. Screaton, D. Curewitz   +12 more
doaj   +1 more source

Kinematics and Timing Constraints in a Transpressive Tectonic Regime: The Example of the Posada-Asinara Shear Zone (NE Sardinia, Italy)

Geosciences, 2020
Detailed geological field mapping, integrated with meso- and microstructural investigations, kinematic of the flow and finite strain analyses, combined with geochronology, are fundamental tools to obtain information on the temperature–deformation–timing ...
Rodolfo Carosi, Alessandro Petroccia, Salvatore Iaccarino, Matteo Simonetti, Antonio Langone, Chiara Montomoli   +5 more
doaj   +1 more source

Transition in Interfacial Failure Mechanism of Resistance Spot Welds during Tensile–Shear Loading: Role of Fusion Zone Hardness

Metals, 2023
The failure of resistance spot welds through the fusion zone along the sheet/sheet interface (i.e., interfacial failure) is critical for automotive crashworthiness.
Nima Nadimi, Majid Pouranvari
doaj   +1 more source