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Stress–Strain Behaviors in Large Plastic Strain Ranges under Monotonic Loading

Jia, Liang-Jiu / Ge, Hanbin

Abstract For ultra-low-cycle fatigue problems, it is a prerequisite to first understand the plasticity behaviors of metal. For monotonic loading, the true stress–true strain data till fracture is of great importance for ductile fracture evaluation. Post-necking modification for the true stress–true strain data is required since the stress state after necking is not uniaxial. In this chapter, a modified weighted average method is proposed and compared with other two methods. The applicability of the method for structural steel is also proved through tension coupon tests and corresponding numerical simulation.

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Stress–Strain Behaviors in Large Plastic Strain Ranges under Monotonic Loading

Jia, Liang-Jiu / Ge, Hanbin

Abstract For ultra-low-cycle fatigue problems, it is a prerequisite to first understand the plasticity behaviors of metal. For monotonic loading, the true stress–true strain data till fracture is of great importance for ductile fracture evaluation. Post-necking modification for the true stress–true strain data is required since the stress state after necking is not uniaxial. In this chapter, a modified weighted average method is proposed and compared with other two methods. The applicability of the method for structural steel is also proved through tension coupon tests and corresponding numerical simulation.

Stress–Strain Behaviors in Large Plastic Strain Ranges under Monotonic Loading

Jia, Liang-Jiu / Ge, Hanbin

Abstract For ultra-low-cycle fatigue problems, it is a prerequisite to first understand the plasticity behaviors of metal. For monotonic loading, the true stress–true strain data till fracture is of great importance for ductile fracture evaluation. Post-necking modification for the true stress–true strain data is required since the stress state after necking is not uniaxial. In this chapter, a modified weighted average method is proposed and compared with other two methods. The applicability of the method for structural steel is also proved through tension coupon tests and corresponding numerical simulation.

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Title:

Stress–Strain Behaviors in Large Plastic Strain Ranges under Monotonic Loading

Contributors:

Jia, Liang-Jiu (author) / Ge, Hanbin (author)

Published in:

Ultra-low-Cycle Fatigue Failure of Metal Structures under Strong Earthquakes ; 13-23

Springer Tracts in Civil Engineering

Publication date:

2018-11-03

Size:

11 pages

ISBN:

978-981-13-2660-8 , 978-981-13-2661-5

ISSN:

2366-2603 , 2366-259X

DOI:

https://doi.org/10.1007/978-981-13-2661-5_2

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Necking , True stress–true strain , Bridgman’s modification method , Weighted average method , FEM Engineering , Structural Mechanics , Building Materials , Building Construction and Design , Fire Science, Hazard Control, Building Safety , Geotechnical Engineering & Applied Earth Sciences

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