Results 31 to 40 of about 79,411 (313)

Influence of Material Nonlinearity of Foundation on Seismic Damage of Koyna Gravity Dam

open access: yesChemical Engineering Transactions, 2018
Based on the theory of damage mechanics, continuum mechanics and thermodynamics, this paper gives the concrete tension constitutive equation, then, the selection principle of the relevant parameters of the foundation rock is given.
Xiaodong Zheng, Jing Ma, Feng Li
doaj   +1 more source

Experimental Mechanics of Wear-Fatigue Damage

open access: yesМеханика машин, механизмов и материалов
The article discusses a number of terms and concepts related to fatigue fracture mechanics, tribology, and tribo-fatigue in the system of scientific disciplines. A hierarchical structure of some objects studied in mechanics is proposed, and a comparative
Alexander V. Bogdanovich   +2 more
doaj   +1 more source

On certain fundamental issues in continuum damage mechanics

open access: yesJournal of the Mechanical Behavior of Materials, 2012
In this article, we discuss three fundamental issues in continuum damage mechanics. First, we investigate the nature of the damage process. For this purpose, we dissect the expression of the effective stress into an infinite geometric series and ...
Voyiadjis George Z., Kattan Peter I.
doaj   +1 more source

Failure and constitutive behavior of a Li-ion pouch cell under mechanical loading

open access: yesJournal of Power Sources Advances
The constitutive mechanical behavior of the individual components in Lithium-ion cells has a fundamental influence on the development of internal electrical short-circuits in crash-relevant load scenarios.
Andreas Trondl   +5 more
doaj   +1 more source

Time-scale invariances in preseismic electromagnetic radiation, magnetization and damage evolution of rocks [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2007
We investigate the time-scale invariant changes in electromagnetic and mechanical energy releases prior to a rock failure or a large earthquake. The energy release processes are caused by damage evolutions such as crack propagation, motion of charged ...
Y. Kawada, H. Nagahama, N. Nakamura
doaj  

Influence of Exponent in Damage Evolution Equation on the Accuracy of Damage Modelling in Brittle Materials

open access: yesEngineering Transactions, 2015
This paper analyses the influence of nonlinearity of the damage evolution equation that is introduced by exponent to the results obtained in the simulation of elastic-brittle material .
Piotr MIKA
doaj   +1 more source

The Spatio-Temporal Evolution of Rock Failure Due to Blasting under High Stress

open access: yesApplied Sciences, 2023
The research aims to investigate the failure characteristics of rock caused by blasting under high stress, explore the energy generation and its transfer and release in rock under the effects of blasting.
Gang Lei   +3 more
doaj   +1 more source

On an isotropic damage mechanics model for ductile materials [PDF]

open access: yes, 2022
S.325-346A new model for combined elastoplasticity and damage is proposed. The model is based on the maximum dissipation principle and implements a strong coupling between plasticity and damage.
Hesebeck, O.
core  

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Application of Damage Mechanics to the Analysis of Spall Damage.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1994
A systematic method of spall damage analysis was developed on the basis of damage mechanics. By use of a scalar damage variable, the damage evolution equation of Lemaitre et al. and the viscoplastic constitutive equation of Perzyna modified for damaged materials were incorporated into the commercial finite difference program MANJUSRI-3 D for nonlinear ...
Murakami, Sumio   +3 more
openaire   +3 more sources

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