Fracture mechanics life prediction system using crack closure methodology

1987 ◽  
Author(s):  
R. DELANEUVILLE ◽  
B. HEATH
Keyword(s):  
Fracture Mechanics ◽  
Crack Closure ◽  
Life Prediction ◽  
Prediction System

Fracture Mechanics Life Prediction for Microscale Components - with Application to Wire Bonding

1991 ◽  
Author(s):  
D.O. Harris ◽  
R.A. Sire ◽  
C.F. Popelar ◽  
M.F. Kanninen ◽  
D.L. Davidson ◽  
...  
Keyword(s):  
Fracture Mechanics ◽  
Life Prediction ◽  
Wire Bonding

scholarly journals Recent Developments on the Unified Fatigue Life Prediction Method Based on Fracture Mechanics and its Applications

2020 ◽  
Vol 8 (6) ◽  
pp. 427 ◽  
Author(s):  
Fang Wang ◽  
Weicheng Cui
Keyword(s):  
Fatigue Life ◽  
Fracture Mechanics ◽  
Crack Growth ◽  
Life Prediction ◽  
Structural Reliability ◽  
Influential Factors ◽  
Fatigue Life Prediction ◽  
Model Parameters ◽  
Sensitivity Index ◽  
Marine Structure

Safety analysis and prediction of a marine structure is of great concern by many stakeholders and the general public. In order to accurately predict the structural reliability of an in-use marine structure, one needs to calculate accurately the fatigue crack growth at any service time. This can only be possible by using fracture mechanics approach and the core of fracture-mechanics-based method is to establish an accurate crack growth rate model which must include all the influential factors of the same order of sensitivity index. In 2011, based on the analysis of various influencing factors, the authors put forward a unified fatigue life prediction (UFLP) method for marine structures. In the following ten years of research, some further improvements of this method have been made and the applications of this UFLP are carried out. In this paper, these progresses are reported and its underlying principles are further elaborated. Some basic test data used to determine model parameters are also provided.

The Life Prediction System Design of He-Ne Gas Laser

2011 ◽  
Vol 346 ◽  
pp. 527-532
Author(s):  
Wen Lun Cao ◽  
Bei Chen ◽  
Yu Yao He
Keyword(s):  
Life Prediction ◽  
Threshold Current ◽  
Optimum Operating ◽  
Prediction System ◽  
Gas Laser ◽  
Software Analysis ◽  
Prediction Module ◽  
Operating Current ◽  
Life Analysis ◽  
Test Module

The data acquisition and life prediction system of gas laser is designed in this paper. The ARM STM3210B module is used as the core of hardware platform. The software platform is composed of parameter setting module, measurement modules of threshold current and optimum operating current, life test module, life analysis and prediction module, reanalysis module of report form and historical data. This article expounds emphatically the relationships among different modules. Meanwhile, the design idea of data exchanges among system software, analysis algorithm and hardware drive is realized successfully.

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