Results 81 to 90 of about 371,626 (309)

Progressive damage and rupture in polymers

, 2017
Progressive damage, which eventually leads to failure, is ubiquitous in biological and synthetic polymers. The simplest case to consider is that of elastomeric materials, which can undergo large reversible deformations with negligible rate dependence. In
Anand, Lallit, Mao, Yunwei, Talamini, Brandon   +2 more
core   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel, Lara Kuhr, Khemais Barienti, Sebastian Herbst, Florian Nürnberger, Hans Jürgen Maier, Marc C. Wurz   +6 more
wiley   +1 more source

3D Numerical Solution for Natural Fracture Distribution in Tight-Sand Reservoirs Based on Damage Mechanics with Sets of 2D Seismic Data

Applied Sciences
Natural fracture development in tight-sand gas reservoirs is strongly controlled by tectonic evolution yet remains difficult to characterize using conventional seismic interpretation due to limited resolution. This study presents a damage-mechanics-based
Meng Wang, Xinpu Shen, Qiyu Gao
doaj   +1 more source

Origin of the Universal Roughness Exponent of Brittle Fracture Surfaces: Correlated Percolation in the Damage Zone

, 2002
We suggest that the observed large-scale universal roughness of brittle fracture surfaces is due to the fracture process being a correlated percolation process in a self-generated quadratic damage gradient.
A. Hansen, A. B. Mosolov, Alex Hansen, B. Sapoval, B. B. Mandelbrot, B. L. Cox, D. Stauffer, E. Bouchaud, H. J. Herrmann, J. Kertész, J. Schmittbuhl, J. Schmittbuhl, J. Schmittbuhl, J. M. Boffa, Jean Schmittbuhl, M. J. Alava, R. Toussaint, R. Toussaint, S. Roux, S. R. Brown   +19 more
core   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Damage characteristic of split-re-closed shale under impact shearing

International Journal of Coal Science & Technology
This study proposes methane in-situ explosive fracturing (MIEF) for reactivating closed fractures in aging shale gas reservoirs. Employing a split Hopkinson pressure bar (SHPB) system, this study investigates the impact-shearing damage characteristics of
Wei Tang, Cheng Zhai, Ting Liu, Jizhao Xu, Yong Sun, Yangfeng Zheng, Yuzhou Cong, Yu Wang, Chengjian Pi   +8 more
doaj   +1 more source

Damage identification and fracture behavior of 2.5D SiCf/SiC composites under coupled stress states

Materials & Design
Continuous fiber-reinforced silicon carbide composites have received significant attention due to their high-temperature mechanical stability. However, their widespread implementation has been hindered by intricate fracture mechanisms and limited ...
Jie Cui, Hongyun Luo, Runze Wang, Jiaping Zhang, Jing Chen, Ziyu Ba, Zhaoliang Guo, Chaoli Ma   +7 more
doaj   +1 more source

Fracture and Damage Evolution of Multiple-Fractured Rock-like Material Subjected to Compression. [PDF]

Materials (Basel), 2022
Liu T, Cui M, Li Q, Yang S, Yu Z, Sheng Y, Cao P, Zhou K.   +7 more
europepmc   +1 more source

Continuum Damage and Scaling of Fracture [PDF]

, 2001
This paper presents a simple application of continuum damage modelling to failure analysis. An isotropic damage model is described and its non local enhancement discussed. The calibration of the model parameters is addressed with the help of structural size effect data.
Pijaudier-Cabot, Gilles, Le Bellégo, Caroline, Gérard, Bruno   +2 more
openaire   +3 more sources

Computational simulation of progressive fracture in fiber composites [PDF]

Computational methods for simulating and predicting progressive fracture in fiber composite structures are presented. These methods are integrated into a computer code of modular form. The modules include composite mechanics, finite element analysis, and
Chamis, C. C.
core   +1 more source