Results 61 to 70 of about 57,772 (300)

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Meso-mechanism of rock failure influenced by bolt anchorage under uniaxial compression loading

Yantu gongcheng xuebao, 2018
As an important support method, the bolt anchoring system is widely used to control the dynamic disasters of deep brittle surrounding rock, but deep rock engineering practices have been beset by the failure of brittle rock with bolt support because the ...
WANG Bin 1, 2, 3, NING Yong 1, FENG Tao 1, ZNEG Ze-min 1, GUO Ze-yang 1
doaj   +1 more source

Reduction of the mesh size influence on the results of a lagrangian finite element machining mode [PDF]

, 2017
Mesh dependence of the results of a finite element model are well known in many fields such as in structural design. This problem is however not much addressed in the literature for machining modelling although it is crucial for the quality of the results ...
Ducobu, François, Filippi, Enrico, Riviere-Lorphevre, Edouard   +2 more
core  

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Experimental Study on Damage and Degradation Mechanism of Biotite Granulite Under Freeze–Thaw Action

Applied Sciences
With the increasing intensity of resource development in alpine regions, numerous geotechnical engineering problems in cold regions have become increasingly prominent.
Bing Liang, Dong Xia
doaj   +1 more source

Preliminary analysing of experimental data for the development of high Cr Alloy Creep damage Constitutive Equations [PDF]

, 2012
This conference paper presents the current research of preliminary analysing of experimental data for the development of high Cr Alloy Creep damage Constitutive Equations (such as P91 alloy). Firstly, it briefly introduces the background of general creep
An, Lili, Lu, Zhongyu, Xu, Donglai, Xu, Qiang   +3 more
core  

On a damage-plasticity approach to model concrete failure

, 2009
A damage-plasticity constitutive model for the description of fracture in plain concrete is presented. Two approaches, the local model comprising the adjustment of the softening modulus and the nonlocal model based on spatial averaging of history ...
Grassl, Peter
core   +1 more source

Understanding fast macroscale fracture from microcrack post mortem patterns [PDF]

, 2011
Dynamic crack propagation drives catastrophic solid failures. In many amorphous brittle materials, sufficiently fast crack growth involves small-scale, high-frequency microcracking damage localized near the crack tip.
Buehler, C. Guerra, D. Bonamy, D. Dalmas, Goldman, J. Scheibert, Livne, Nalla, Persson, Rosakis, Scheibert, Sharon   +11 more
core   +5 more sources

A Data-Driven Multiscale Theory for Modeling Damage and Fracture of Composite Materials

, 2019
The advent of advanced processing and manufacturing techniques has led to new material classes with complex microstructures across scales from nanometers to meters. In this paper, a data-driven computational framework for the analysis of these complex material systems is presented.
Shakoor, Modesar, Gao, Jiaying, Liu, Zeliang, Liu, Wing Kam   +3 more
openaire   +2 more sources

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source