Abstract
This paper describes an inverse approach (IA) formulation for the analysis of tubes under free hydroforming conditions. The IA formulation is derived from that of Guo et al. established for flat sheet hydroforming analysis using constant strain triangular membrane elements. First, an incremental analysis of free hydroforming for a hot-dip galvanized (HG/Z140) DP600 tube is performed using the Marc finite element code. The deformed geometry obtained at the last converged increment is then used as the final configuration in the inverse analysis. This comparative study allows an assessment of the predictive capability of the inverse analysis. The results are compared with the experimental values determined by Asnafi and Skogsgardh. After that, a procedure based on a forming limit diagram (FLD) is described as a means to adjust the process parameters such as the axial feed and internal pressure. Finally, the adjustment process is illustrated through a re-analysis of the same tube using the inverse approach.
| Original language | English |
|---|---|
| Pages (from-to) | 133-140 |
| Number of pages | 8 |
| Journal | Journal of Engineering Materials and Technology, Transactions of the ASME |
| Volume | 125 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Apr 2003 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
- Materials Science(all)
Cite this
Analysis of tube free hydroforming using an inverse approach with FLD-based adjustment of process parameters. / Nguyen, Ba Nghiep; Johnson, Kenneth I.; Khaleel, Mohammad A.
In: Journal of Engineering Materials and Technology, Transactions of the ASME, Vol. 125, No. 2, 01.04.2003, p. 133-140.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Analysis of tube free hydroforming using an inverse approach with FLD-based adjustment of process parameters
AU - Nguyen, Ba Nghiep
AU - Johnson, Kenneth I.
AU - Khaleel, Mohammad A.
PY - 2003/4/1
Y1 - 2003/4/1
N2 - This paper describes an inverse approach (IA) formulation for the analysis of tubes under free hydroforming conditions. The IA formulation is derived from that of Guo et al. established for flat sheet hydroforming analysis using constant strain triangular membrane elements. First, an incremental analysis of free hydroforming for a hot-dip galvanized (HG/Z140) DP600 tube is performed using the Marc finite element code. The deformed geometry obtained at the last converged increment is then used as the final configuration in the inverse analysis. This comparative study allows an assessment of the predictive capability of the inverse analysis. The results are compared with the experimental values determined by Asnafi and Skogsgardh. After that, a procedure based on a forming limit diagram (FLD) is described as a means to adjust the process parameters such as the axial feed and internal pressure. Finally, the adjustment process is illustrated through a re-analysis of the same tube using the inverse approach.
AB - This paper describes an inverse approach (IA) formulation for the analysis of tubes under free hydroforming conditions. The IA formulation is derived from that of Guo et al. established for flat sheet hydroforming analysis using constant strain triangular membrane elements. First, an incremental analysis of free hydroforming for a hot-dip galvanized (HG/Z140) DP600 tube is performed using the Marc finite element code. The deformed geometry obtained at the last converged increment is then used as the final configuration in the inverse analysis. This comparative study allows an assessment of the predictive capability of the inverse analysis. The results are compared with the experimental values determined by Asnafi and Skogsgardh. After that, a procedure based on a forming limit diagram (FLD) is described as a means to adjust the process parameters such as the axial feed and internal pressure. Finally, the adjustment process is illustrated through a re-analysis of the same tube using the inverse approach.
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UR - http://www.scopus.com/inward/citedby.url?scp=0038755130&partnerID=8YFLogxK
U2 - 10.1115/1.1555651
DO - 10.1115/1.1555651
M3 - Article
VL - 125
SP - 133
EP - 140
JO - Journal of Engineering Materials and Technology, Transactions of the ASME
JF - Journal of Engineering Materials and Technology, Transactions of the ASME
SN - 0094-4289
IS - 2
ER -