휨하중하에서 목재의 CREEP 거동에 관한 연구

• 영문명: Study on the creep behavior of wood under bending loads
• 발행기관: 한국가구학회
• 저자명: 장상식(Sangsik Jang)
• 간행물 정보: 『한국가구학회지』한국가구학회지 제1권 제1호, 1~11쪽, 전체 11쪽
• 주제분류: 예술체육 > 미술
• 파일형태: PDF
• 발행일자: 1990.08.30

영문 초록

Nonlinear Five-Element Model(N5-E) and Double Three-Integral Model(D3-Ⅰ)have been used successfully for creep prediction of nailed joints in previous researches. In this study, the same models were applied to solid wood in bending. To predict creep under long-term variable loads, three Solutions-shch as applications of 1) Modified Superposition Principle to recoverable creep and Strain Hardening Principle to nonrecoverable creep, 2) Modified Superposition Principle to total creep, and 3) Improved Modified Superposition Principle to total creep-have been incorporated into the models. The predictions of two models by three Solutions were compared with the results of variable load tests. As a result, two models and three Solutions predicted very close creep values to experimental data. However, the predictions of D3-Ⅰ for instantaneous deformations were somehat lower than those of experimental data.

목차

1. 서론

2. 이론모형

3. 이론모형의 수정

4. 재료 및 방법

5. 훰하중하에서 목재의 CREEP거동

6. 이론모형의 구성방정식

7. 결론