Torsional constants of both rectangular cross section and circular cross section are induced by exact solution, and was easy to calculate since of simple shape. However, it is very difficult to calculate the torsional constant of both an arbitrary cross-section and a composite cross-section. In this study, a finite element formulation was proposed as a method to calculate the torsional constant of both an arbitrary cross-section and a composite cross-section. From the numerical study, numerical results was compared with exact solution.

ABSTRACT
 1. 서 론
 2. 유한요소 정식화
 3. 단일 경계조건을 갖는 비틀림 강성계산
 4. 결 론
 References

• 권민호(경상대학교 공과대학 토목공학과) | Kwon Min-Ho
• 김진섭(경상대학교 공과대학 토목공학과) | Kim Jin-Sup
• 서현수(텍사스 주립대학교 알링턴캠퍼스) | Seo Hyun-Su
• 임정희(경상대학교 공과대학 토목공학과) | Lim Jeong-Hee