结构工程师2017，Vol.33Issue(3)：33-41,9.
考虑损伤不同模量组合梁的纯弯曲研究
Pure Bending of Beam Composed of Different Moduli Materials with Damage Considered
杨帆 1盛冬发 1徐国林1
作者信息
- 1. 西南林业大学土木工程学院,昆明650224
- 折叠
摘要
Abstract
According to the elastic theory with different modulus considering material damage,the basic flexure equations of pure bending beam with different moduli material considering material damage are established.The calculation formulae of tension (compression) stress,tension zone height,neutral axis offsetcaused by damageand deflection of beam are derived.Using a numerical analysis method,the relationship curves between tension (compression) stress and the ratio of modulus are respectively achieved.The neutral axis offset caused by damage changing with the loadare obtained.The relationship curves between the tension (compression) stress and the ratio of modulus in the case of different new material thickness for the damaged beam are compared.The relationship curves between the deflections of the damage beam and non-damage beam are compared.These are useful for designing the beam section with different moduli combination.关键词
损伤/不同模量/中性轴偏移/纯弯曲Key words
damage/different moduli/neutral axis offset/pure bending引用本文复制引用
杨帆,盛冬发,徐国林..考虑损伤不同模量组合梁的纯弯曲研究[J].结构工程师,2017,33(3):33-41,9.
