Determination of constitutive parameters from a Taylor test using inverse analysis

Strain ◽  
2017 ◽  
Vol 53 (6) ◽  
pp. e12249 ◽  
Author(s):  
C. Hernandez ◽  
A. Maranon
Keyword(s):  
Inverse Analysis ◽  
Taylor Test ◽  
Constitutive Parameters

Inverse Analysis of Forming Processes Based on FORGE Environment

2014 ◽  
Vol 611-612 ◽  
pp. 1494-1502 ◽  
Author(s):  
Stephane Marie ◽  
Richard Ducloux ◽  
Patrice Lasne ◽  
Julien Barlier ◽  
Lionel Fourment
Keyword(s):  
Inverse Analysis ◽  
Optimization Problems ◽  
Three Dimensional ◽  
Optimization Method ◽  
Transfer Coefficients ◽  
Support Design ◽  
Finite Element Software ◽  
Automatic Optimization ◽  
Dimensional Simulation ◽  
Constitutive Parameters

In the field of materials forming processes, the use of simulation coupled with optimization is a powerful numerical tool to support design in industry and research. The finite element software Forge®, a reference in the field of the two-dimensional and three-dimensional simulation of forging processes, has been coupled to an automatic optimization engine. The optimization method is based on meta-model assisted evolutionary algorithm. It allows solving complex optimization problems quickly. This paper is dedicated to a specific application of optimization, inverse analysis. In a first stage, a range of reverse analysis applications are considered such as material rheological and tribological characterization, identification of heat transfer coefficients and, finally, the estimation of Time Temperature Transformation curves based on existing Continuous Cooling Transformation diagrams for steel quenching simulation. In a second part, a novel inverse analysis application is presented in the field of cold sheet forming, the identification of the material anisotropic constitutive parameters that allow matching with the final shape of the component after stamping. The advanced numerical methods used in this kind of complex simulations are described along with the obtained optimization results. This article shows that automatic optimization coupled with Forge® can solve many inverse analysis problems and is a valuable tool for supporting development and design of metals forming processes.

229 Applicability of Inverse Analysis to Determination of Delamination Depth in Concrete by Passive Thermography

2010 ◽  
Vol 2010.85 (0) ◽  
pp. _2-29_
Author(s):  
Tzu Yang CHENG ◽  
Takahide SAKAGAMI ◽  
Daisuke SATO ◽  
Shiro KUBO
Keyword(s):  
Inverse Analysis
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