FRACTURE SURFACE DEVELOPMENT IN AN OVERLOADED D16T Al-ALLOY SUBJECTED TO BIAXIAL LOADING. A FRACTOGRAPHIC ANALYSIS
| Autor: | A. A. Shanyavsky, E. F. Orlov |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Surface (mathematics)
Materials science business.industry Mechanical Engineering Alloy Structural engineering Paris' law engineering.material Stress (mechanics) Crack closure Cruciform Mechanics of Materials Fracture (geology) engineering General Materials Science Development (differential geometry) business |
| Zdroj: | Fatigue & Fracture of Engineering Materials & Structures. 20:151-166 |
| ISSN: | 8756-758X |
| Popis: | — Fatigue crack growth experiments were carried out on cruciform specimens of D16T Al-alloy, loaded under uniaxial and biaxial loads, including a sequence of various overloads. It is shown that, for biaxial cyclic loads at stress ratios λ and various R-ratios, fracture surface development during overloads and the crack length dependences on the cyclic loads following overloads are similar to those for uniaxial loading. The aim of this investigation was to study interaction effects by analyzing the crack retardation length and associated parameters together with their relationships. These parameters’depend on the biaxial ratio (λ) and the stress ratio (R) and their uses in crack growth modelling are briefly considered. |
| Databáze: | OpenAIRE |
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