Stabilized rapidly convergent 18-degrees-of-freedom flat shell triangular element

✍ Scribed by Jacob Fish; Ted Belytschko

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 861 KB
• Volume: 33
• Category: Article
• ISSN: 0029-5981
• DOI: 10.1002/nme.1620330111

✦ Synopsis

Abstract

A rank‐sufficient flat triangular shell element with drilling degrees‐of‐freedom is described. A variational basis for this element has been provided by a three‐field variational principle with relaxed interelement compatibility and traction continuity conditions. A generalized spurious mode control procedure has been developed in order to stabilize zero energy kinematical modes. Excellent performance has been found in an obstacle course and buckling problems.