A concept for scaling JR-curves by plastic constraint factors

2004 ◽  
Vol 130 (1) ◽  
pp. 455-469 ◽  
Author(s):  
W. Brocks ◽  
P. Anuschewski ◽  
D. Hellmann
Keyword(s):  
Constraint Factors ◽  
Plastic Constraint ◽  
Jr Curves

Application of the Strip Yield Model to Crack Growth Predictions for Structural Steel

2010 ◽  
Vol 57 (1) ◽  
pp. 1-20
Author(s):  
Małgorzata Skorupa ◽  
Tomasz Machniewicz
Keyword(s):  
Structural Steel ◽  
Crack Growth ◽  
Model Calibration ◽  
Load History ◽  
Yield Model ◽  
Variable Amplitude Loading ◽  
Variable Amplitude ◽  
Constraint Factors ◽  
Strip Yield Model ◽  
Closure Mechanism

Application of the Strip Yield Model to Crack Growth Predictions for Structural SteelA strip yield model implementation by the present authors is applied to predict fatigue crack growth observed in structural steel specimens under various constant and variable amplitude loading conditions. Attention is paid to the model calibration using the constraint factors in view of the dependence of both the crack closure mechanism and the material stress-strain response on the load history. Prediction capabilities of the model are considered in the context of the incompatibility between the crack growth resistance for constant and variable amplitude loading.

scholarly journals Identifying Causes for the Decline in International Arrivals to China−Perspective of Sustainable Inbound Tourism Development

2019 ◽  
Vol 11 (6) ◽  
pp. 1723 ◽  
Author(s):  
Guanghui Qiao ◽  
Shuai Peng ◽  
Bruce Prideaux ◽  
Man Qiao
Keyword(s):  
Information Sources ◽  
Tourism Development ◽  
Past Experience ◽  
Downward Trend ◽  
Behavioral Factors ◽  
Government Officials ◽  
Constraint Factors ◽  
Travel Experience ◽  
Inbound Tourism ◽  
Practical Implications

Chinese inbound tourism growth peaked in 2012 and in following years, arrivals have exhibited a downward trend. Over the same time Chinese outbound tourism has increased significantly and by 2016 the number of Chinese outbound tourists (52.7 million) was nearly twice that of international arrivals to China (28.1 million) (CTA, 2018). The aim of this paper is to identify the determinants of international tourists visiting China based on destination attributes. For the purposes of this research, Australia was selected as a study site on the grounds that China has been a popular destination for Australian residents. This study examines a range of behavioral factors that may affect intentions to travel to China including: past travel experience to China; perceptions of overseas destination attributes; beliefs in China’s ability to satisfy the needs and constraints that appear to prevent Australian residents from traveling to China; and tourists’ intentions to visit or revisit. Data collected from Australian residents on aspects of travel to China included perceptions, beliefs, constraints, information sources, and past experience. The research shows that past experience was positively associated with intention to visit or revisit. Five constraint factors were identified. Based on these findings, the study discusses practical implications for management and government officials needed to boost Chinese inbound tourism.

Determining engineering stress–strain curve directly from the load–depth curve of spherical indentation test

2010 ◽  
Vol 25 (12) ◽  
pp. 2297-2307 ◽  
Author(s):  
Baoxing Xu ◽  
Xi Chen
Keyword(s):  
Indentation Test ◽  
Strain Curve ◽  
Spherical Indentation ◽  
Displacement Curve ◽  
Large Set ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Constraint Factors ◽  
Engineering Stress ◽  
Depth Curve

The engineering stress–strain curve is one of the most convenient characterizations of the constitutive behavior of materials that can be obtained directly from uniaxial experiments. We propose that the engineering stress–strain curve may also be directly converted from the load–depth curve of a deep spherical indentation test via new phenomenological formulations of the effective indentation strain and stress. From extensive forward analyses, explicit relationships are established between the indentation constraint factors and material elastoplastic parameters, and verified numerically by a large set of engineering materials as well as experimentally by parallel laboratory tests and data available in the literature. An iterative reverse analysis procedure is proposed such that the uniaxial engineering stress–strain curve of an unknown material (assuming that its elastic modulus is obtained in advance via a separate shallow spherical indentation test or other established methods) can be deduced phenomenologically and approximately from the load–displacement curve of a deep spherical indentation test.

Plastic constraint as a mechanism for film strengthening

1972 ◽  
Vol 20 (12) ◽  
pp. 1339-1346 ◽  
Author(s):  
J. Pridans ◽  
J.C. Bilello
Keyword(s):  
Plastic Constraint
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