CAD system for the elastic-medium shaping of pipe-line parts

✍ Scribed by G.D. Del; V.V. Eliseev; S.A. Erbeigel; E.I. Pismenny; S.A. Vulman

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 278 KB
• Volume: 35
• Category: Article
• ISSN: 0924-0136
• DOI: 10.1016/0924-0136(92)90246-o

✦ Synopsis

This paper presents a solution to the problem of the stress-strain state of a tubular workpiece during its expansion by an elastic medium. The estimation of the probability of its rupture is made on the basis of the analysis of the strain state of the workpiece by the criterion of defect accumulation expressed in tensor form. The computational algorithm of a fracture diagram (FD) is based on tension-test results for states of uniaxial-and plane-strain for sheet materials. The verification of the accuracy of the prediction of the rupture of the workpiece is based on results for the shaping of titanium-alloyed and steel pipe-line parts with an elastic medium. The solution of the problem enables the usage of a CAD system for any shaping operation.