摘要
根据粘弹性损伤理论,分析了带损伤粘弹性矩形梁在受纯弯曲时损伤对应力的影响,得到了在Laplace变换域内损伤场和应力场的分布.利用Laplace数值逆变换,分别得到了损伤弹性梁和损伤粘弹性梁的最大应力和最大损伤值,分析了材料的粘性对梁内应力和损伤的影响.
According to the theory of viscoelastic materials with damage, the pure bending of viscoelastic beams with damage is considered and the influence of damage on the stresses is analyzed. Firstly, the stress and damage fields in the Laplace transformation domain are obtained. Then, by applying numerical Laplace inversion transform, the maximum damage and stress of the beam are identified. The effect of material's viscidity on the damage and stress is also discussed.
出处
《固体力学学报》
CAS
CSCD
北大核心
2004年第4期383-388,共6页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金(50278051)项目
上海市重点学科建设项目资助.
