Reliable design with multiple clock domains

2006 ◽  
Author(s):  
E. Czeck ◽  
R. Nanavati ◽  
J. Stoy
Keyword(s):  
Clock Domains ◽  
Reliable Design

ON SOME PROBLEMS OF RELIABLE DESIGN OF ONBOARD REM

2017 ◽  
Author(s):  
S. I. Frolov ◽  
◽  
N. V. Goryachev ◽  
G. V. Tan’kov ◽  
I. I. Kochegarov ◽  
...  
Keyword(s):  
Reliable Design

scholarly journals Probabilistic Assessment of Fracture Toughness of Epoxy Resin EPOLAM 2025 Including the Notch Radii Effect

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1857
Author(s):  
Adrián Álvarez-Vázquez ◽  
Miguel Muñiz-Calvente ◽  
Pelayo Fernández Fernández ◽  
Alfonso Fernández-Canteli ◽  
María Jesús Lamela-Rey ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Critical Distance ◽  
Polymer Materials ◽  
Cumulative Distribution ◽  
Probabilistic Assessment ◽  
Apparent Fracture Toughness ◽  
Experimental Campaign ◽  
Failure Assessment ◽  
Alternative Approaches ◽  
Reliable Design

Many design scenarios of components made of polymer materials are concerned with notches as representative constructive details. The failure hazard assessment of these components using models based on the assumption of cracked components leads to over-conservative failure estimations. Among the different alternative approaches proposed that are based on the apparent fracture toughness, KcN is considered. In so doing, the current deterministic underlying concept must be replaced by a probabilistic one to take into account the variability observed in the failure results in order to ensure a reliable design. In this paper, an approach based on the critical distance principle is proposed for the failure assessment of notched EPOLAM 2025 CT samples with each different notch radii (ρ) including a probabilistic assessment of the failure prediction. First, each apparent fracture toughness is transformed into the equivalent fracture toughness for ρ=0 based on the critical distances theory. Then, once all results are normalized to the same basic conditions, a Weibull cumulative distribution function is fitted, allowing the probability of failure to be predicted for different notch radii. In this way, the total number of the specimens tested in the experimental campaign is reduced, whereas the reliability of the material characterization improves. Finally, the applicability of the proposed methodology is illustrated by an example using the own experimental campaign performed on EPOLAM 2025 CT specimens with different notch radii (ρ).

Using Launch-on-Capture for Testing BIST Designs Containing Synchronous and Asynchronous Clock Domains

2010 ◽  
Vol 29 (2) ◽  
pp. 299-312 ◽  
Author(s):  
Laung-Terng Wang ◽  
Xiaoqing Wen ◽  
Shianling Wu ◽  
Hiroshi Furukawa ◽  
Hao-Jan Chao ◽  
...  
Keyword(s):  
Clock Domains

scholarly journals Flexural behavior of sandwich panels with cellular wood, plywood stiffener/foam and thermoplastic composite core

2017 ◽  
Vol 21 (2) ◽  
pp. 784-805 ◽  
Author(s):  
Edgars Labans ◽  
Kaspars Kalnins ◽  
Chiara Bisagni
Keyword(s):  
Mechanical Performance ◽  
Sandwich Panels ◽  
Experimental Tests ◽  
Design Tool ◽  
Thermoplastic Composite ◽  
Flexural Behavior ◽  
Four Point Bending ◽  
Reliable Design ◽  
Sufficient Strength ◽  
Core Part

A series of experimental tests have been carried out on three types of novel sandwich panels mainly designed for application in lightweight mobile housing. Two types of the panels are manufactured entirely from wood-based materials while the third one presents a combination of plywood for surfaces and corrugated thermoplastic composite as a core part. All sandwich panels are designed to allow rapid one-shot manufacturing. Mechanical performance has been evaluated in four-point bending comparing the data to the reference plywood board. Additionally, finite element simulations were performed to evaluate global behavior, stress distribution and provide the basis for a reliable design tool. Obtained results show sufficient mechanical characteristics suitable for floor and wall units. Compared to a solid plywood board, sandwich alternative can reach up to 42% higher specific stiffness, at the same time maintaining sufficient strength characteristics.

scholarly journals FAILURE ANALYSIS AND REDESIGNING OF INTERNAL FIXATION SCREWS

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
Seshasai Srihari Hanuma Ravinuthala ◽  
B Sai Sri Harshita
Keyword(s):  
Failure Analysis ◽  
Internal Fixation ◽  
Case Studies ◽  
Living Organism ◽  
Operational Procedure ◽  
Fixation Screw ◽  
Quality Checks ◽  
Reliable Design ◽  
Living Organisms ◽  
Operational Failure

Its highly impossible for false proofing the super structures or mechanisms or the metallurgical methods after installation so they are perfectly engineered and dispatched only after a series of quality checks which has a proper methodology. If this is the scenario with the non living structure's components if they were engineered without errors. There must be some more intensity with the living organisms. living organisms are not engineered but the engineering of the ailments or aids which support the life of living organism must be error free and perfect also must be ready to use. In this context it's pity that there is no perfect operational procedure for internal fixation of fractures this thesis Is focused on that area and aimed to derive a reliable design of internal fixation screw which is designed in contrast with conventional screw This project is stimulation out from two case studies of operational failure implant removal.

Response of a CALM Buoy Moored Vessel in Squall Condition

2016 ◽  
Author(s):  
Mark Paalvast ◽  
Jelte Kymmell ◽  
Ward Gorter ◽  
Alison Brown
Keyword(s):  
Extreme Values ◽  
Generalized Pareto Distribution ◽  
Generalized Pareto ◽  
Benchmark Database ◽  
Peak Over Threshold ◽  
Vessel Response ◽  
Design Loads ◽  
Novel Method ◽  
Selection For ◽  
Reliable Design

This paper reviews the response of a hawser moored vessel to squalls and addresses a novel method for obtaining statistically reliable design loads. Industry paradigms related to squall selection for analysis input are reviewed and renewed. A benchmark database consisting of more than 15,000 unique squall-wave-current induced extreme values enables the validation of a range of less computationally demanding analysis and squall selection methods. Extreme values are extrapolated to a design value using a Peak Over Threshold (POT) method to fit a Generalized Pareto Distribution (GPD). The influence of associated metocean conditions and squall characteristics on the vessel response is presented. By means of bootstrapping a satisfactory population size for design purposes is studied. The findings challenge common design practices currently employed throughout the industry.

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