scholarly journals Correction to Material Failure Mechanisms of Alkaline Zn Rechargeable Conversion Electrodes

2021 ◽  
Author(s):  
Michael J. D’Ambrose ◽  
Damon E. Turney ◽  
Gautam G. Yadav ◽  
Michael Nyce ◽  
Sanjoy Banerjee
Keyword(s):  
Failure Mechanisms ◽  
Material Failure

Materials Failure Logic Models—A Procedure for Systematic Identification of Material Failure Modes in Mechanical Components

1982 ◽  
Vol 104 (3) ◽  
pp. 626-634 ◽  
Author(s):  
D. L. Marriott ◽  
N. R. Miller
Keyword(s):  
Failure Modes ◽  
Planning Process ◽  
Service Failure ◽  
Failure Mechanisms ◽  
Material Failure ◽  
Cad System ◽  
Logic Models ◽  
Identification Technique ◽  
Mechanical Components ◽  
Systematic Identification

This paper addresses the problem of improvement of mechanical component reliability by the systematic identification of material failure mechanisms. Experience shows that, in many cases of service failure, failure was caused by a known mechanism which was overlooked, either by design, or elsewhere in the planning process. This paper describes one approach to designing mechanical components against failure by material deterioration, but may have application to other fields. It is based on a finding from the examination of case studies which shows that material failures follow logic structures which can be described by Boolean algebra expressions. These structures are defined as Material Failure Logic Models (MFLM’s), and can be used as a means of systematically identifying potential failure mechanisms in a complex process. The identification technique is based on the observation that MFLM’s are insensitive to the precise causes of the individual events. The paper deals primarily with problems of defining MFLM’s. Some examples of MFLM’s are given. A brief discussion is presented of a CAD system under development at the University of Illinois at Urbana-Champaign.

Material Failure Mechanisms of Alkaline Zn Rechargeable Conversion Electrodes

2021 ◽  
Vol 4 (4) ◽  
pp. 3381-3392
Author(s):  
Michael J. D’Ambrose ◽  
Damon E. Turney ◽  
Gautam G. Yadav ◽  
Michael Nyce ◽  
Sanjoy Banerjee
Keyword(s):  
Failure Mechanisms ◽  
Material Failure

Quantification of structural and material failure mechanisms across different length scales: from instability to brittle-ductile transitions

2012 ◽  
Vol 223 (9) ◽  
pp. 1937-1957 ◽  
Author(s):  
H. A. Mang ◽  
B. Pichler ◽  
T. Bader ◽  
J. Füssl ◽  
X. Jia ◽  
...  
Keyword(s):  
Failure Mechanisms ◽  
Material Failure ◽  
Length Scales

Sustained Loading Fracture and Strength of Concrete Modelled by Creep-Damage Interaction

2006 ◽  
Vol 324-325 ◽  
pp. 51-54
Author(s):  
Tao Xu ◽  
Gao Lin ◽  
Chun An Tang ◽  
Zhi Qiang Hu
Keyword(s):  
Process Analysis ◽  
Failure Process ◽  
Failure Mechanisms ◽  
Creep Damage ◽  
Material Failure ◽  
Creep Failure ◽  
Sustained Loading ◽  
Typical Time ◽  
Concrete Damage ◽  
In Series

The phenomenon creep fracture is well-known for concrete. In the present paper, the Material Failure Process Analysis (MFPA2D) model for concrete in the failure process is coupled in series with the time-dependence of the concrete damage and deformation. Further, the progressive creep failure of concrete specimens under constant tensile loading was numerically simulated and the typical time-dependent deformations: the transient creep, the steady-state creep and the accelerating creep were also represented. The numerical simulations indicate that the macroscopic creep failure is induced by clusters of micro-fractures on a mesocopic scale. The above numerical results offer us some theoretical indications and instructions to further investigate the instability failure mechanisms of engineering concrete structures in civil and hydraulic engineering.

Material failure mechanisms and damage models

1991 ◽  
Vol 40 (5) ◽  
pp. 531-536 ◽  
Author(s):  
A. Dasgupta ◽  
M. Pecht
Keyword(s):  
Failure Mechanisms ◽  
Material Failure ◽  
Damage Models

On the role of tin underlays for the prevention of thermal grooving in thin gold films

1986 ◽  
Vol 44 ◽  
pp. 732-733
Author(s):  
Jin Young Kim ◽  
R. E. Hummel ◽  
R. T. DeHoff
Keyword(s):  
Thin Film ◽  
Free Surface ◽  
Grain Boundary ◽  
Beneficial Effect ◽  
Failure Mechanism ◽  
Failure Mechanisms ◽  
Distinct Advantage ◽  
Gold Films ◽  
Gold Thin Film

Gold thin film metallizations in microelectronic circuits have a distinct advantage over those consisting of aluminum because they are less susceptible to electromigration. When electromigration is no longer the principal failure mechanism, other failure mechanisms caused by d.c. stressing might become important. In gold thin-film metallizations, grain boundary grooving is the principal failure mechanism.Previous studies have shown that grain boundary grooving in gold films can be prevented by an indium underlay between the substrate and gold. The beneficial effect of the In/Au composite film is mainly due to roughening of the surface of the gold films, redistribution of indium on the gold films and formation of In2O3 on the free surface and along the grain boundaries of the gold films during air annealing.

Real-time cryo-deformation of polypropylene and impact-modified polypropylene in the transmission electron microscope

1993 ◽  
Vol 51 ◽  
pp. 892-893
Author(s):  
Robert C. Cieslinski ◽  
H. Craig Silvis ◽  
Daniel J. Murray
Keyword(s):  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Failure Mechanisms ◽  
Brittle Transition ◽  
Molded Part ◽  
Transmission Electron ◽  
Solvent Cast ◽  
The Impact ◽  
Annealed Copper ◽  
Dynamic Plane

An understanding of the mechanical behavior polymers in the ductile-brittle transition region will result in materials with improved properties. A technique has been developed that allows the realtime observation of dynamic plane stress failure mechanisms in the transmission electron microscope. With the addition of a cryo-tensile stage, this technique has been extented to -173°C, allowing the observation of deformation during the ductile-brittle transition.The technique makes use of an annealed copper cartridge in which a thin section of bulk polymer specimen is bonded and plastically deformed in tension in the TEM using a screw-driven tensile stage. In contrast to previous deformation studies on solvent-cast films, this technique can examine the frozen-in morphology of a molded part.The deformation behavior of polypropylene and polypropylene impact modified with EPDM (ethylene-propylene diene modified) and PE (polyethylene) rubbers were investigated as function of temperature and the molecular weight of the impact modifier.

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