Conference proceeding
Integrated Design Of Steel Castings For Service Performance
Modeling of Casting, Welding and Advanced Solidification Processes - XI, pp.653-660
2006
Abstract
An integrated approach is presented for the design of structural components made of steel castings that couples casting simulation with stress and fatigue simulation of the part in service. The casting simulation is used to predict the location, size, and shape of porosity defects in the part. The porosity predictions are then transferred to finite element stress analysis and fatigue analysis codes in order to predict the strength and fatigue life of the part in the presence of porosity. Strength and fatigue measurements on test specimens cast with varying levels of porosity are performed to establish relations between the mechanical properties and the porosity; in particular, it is shown how the elastic modulus and the fatigue notch factor depend on the size and shape of the porosity. An industrial case study is used to validate the present simulation methodology. The case study illustrates that a large pore in a low stressed area of the casting may be far less detrimental than a small amount of microporosity in an area that is subject to high tensile stresses. The proposed integrated approach leads to the design of more reliable castings, tailored inspection standards, and decreased reliance on factors of safety.
Details
- Title: Subtitle
- Integrated Design Of Steel Castings For Service Performance
- Creators
- Richard HardinRichard HuffChristoph Beckermann
- Resource Type
- Conference proceeding
- Publication Details
- Modeling of Casting, Welding and Advanced Solidification Processes - XI, pp.653-660
- Language
- English
- Date published
- 2006
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984627292702771
Metrics
1 Record Views