Application of a unified viscoplastic model to simulation of autoclave age forming
Article Abstract:
A mathematical model for analyzing autoclave age forming is developed from a synthesis of constitutive and Bernoulli/Euler equations. The model is used in a research where aluminum 7075 alloy rectangular beams were age formed into curved beams. The thermal stresses are negligible and that the elastic line could be estimated by circular arc and the contact between the part and the tool occurs simultaneously. Results obtained with the model agree with experimental data.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1992
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Viscoplastic model development with an eye toward characterization
Article Abstract:
A theory developed for viscoplasticity is capable of undergoing analytical simplification to creep theory in the presence of steady-state conditions. Characterization of material functions associated with the physics of inelasticity helps develop a viscoplastic model within the limits of the theory. Monotonic stress strain curves, steady-state creep data and saturated stress-strain hysteresis loops are essential for the characterization of the model.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1995
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A simulation procedure for panel age forming
Article Abstract:
An innovative method can be utilized in simulating the autoclave age forming of panels. The method is divided in three phases which include loading, aging and unloading. Since autoclave age forming is suitable in various aerospace applications, mathematical modeling of panel age forming through the simulation process may yield important information in determining the usability of materials.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1998
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