EFFECT OF LOADING RATE ON UPPER SHELF CRACK RESISTANCE OF STRUCTURAL STEELS WITH DIFFERENT YIELD STRENGTH AND MICROSTRUCTURE

1988 ◽  
Vol 49 (C3) ◽  
pp. C3-301-C3-306
Author(s):  
K. BRÜNINGHAUS ◽  
M. TWICKLER ◽  
R. TWICKLER ◽  
W. DAHL
Keyword(s):  
Yield Strength ◽  
Crack Resistance ◽  
Loading Rate ◽  
Structural Steels

Crack resistance of structural steels under static and cyclic loading

1990 ◽  
Vol 22 (7) ◽  
pp. 965-970
Author(s):  
N. S. Kogut ◽  
V. N. Moskvichev ◽  
N. L. Kuklyak ◽  
L. I. Bozhenko ◽  
Yu. A. Suetin
Keyword(s):  
Cyclic Loading ◽  
Crack Resistance ◽  
Structural Steels ◽  
Static And Cyclic Loading

Some problems of assessing the dynamic crack resistance of structural steels

2021 ◽  
Vol 18 (3) ◽  
pp. 428-435
Author(s):  
Vladimir I. SMIRNOV ◽  
◽  
Tatiana A. KNOPOVA ◽  
Sergey S. MAYER ◽  
◽  
...  
Keyword(s):  
Crack Resistance ◽  
High Speed ◽  
Dynamic Testing ◽  
Practical Importance ◽  
Dynamic Strength ◽  
Structural Steels ◽  
Dynamic Crack ◽  
Unstable Fracture ◽  
Structural Elements ◽  
Limiting State

Objective: Solving the problem of determining the conditions for the onset and development of unstable fracture, which is extremely important for the development of methods for calculating the limiting states of structural elements, improving the dynamic testing schemes of materials and classifying steels according to their ability to resist fracture. Methods: Analytical methods for assessing the limiting state of structural elements are used. Results: A brief overview of the available test methods for structural steels for dynamic strength and crack resistance is given. The experience accumulated by domestic and foreign practices in testing steels for strength and crack resistance under high-speed loading is analyzed. The disadvantages of the existing methods for assessing the indicators of dynamic strength and resistance to brittle fracture are indicated. Practical importance: It is shown that along with the traditional methods for assessing strength based on safety factors, it is necessary to develop and apply new methods for assessing the limiting state of structural elements, including by the criteria of crack resistance

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