Stress histories affecting shear modulus and damping of sand under cyclic loading

DOI NDLデジタルコレクション Web Site Web Site Web Site 被引用文献17件 参考文献10件

書誌事項

タイトル別名
  • Stress conditions and stress histories affecting shear modulus and damping of sand under cyclic loading.
  • Stress Conditions and Stress Histories
  • Stress conditions and stress histories affecting shear modulus and damping of sands under cyclic loading

この論文をさがす

抄録

To evaluate the effects of various static stress conditions and stress histories on shear modulus and damping of sand under cyclic loadings, a comprehensive series of cyclic torsional shear tests on hollow cylindrical specimens of a clean sand was performed. All the tests were performed and the constant value of mean principal stress =1.0 kgf/cm2 (about 100 kN/m2) under fully drained condition. From the test results, the followings were found. For a wide range of shear strain amplitude (γ=5×10-5∼5×10-3), the effect of stress ratio on shear modulus is minor in the triaxial compression case but considerable in the triaxial extension case. Initial shear stress decreases shear modulus especially for the triaxial compression case. Although shear modulus is affected by various static stress conditions, its strain-dependency is insensitive to those static stress conditions. The effects of stress ratio and initial shear stress on damping ratio are less important than shear strain amplitude γ and mean principal stress p. It was found that the effects of overconsolidation history and previous larger cyclic shear stress history on G and η are also less important than γ and p.

収録刊行物

被引用文献 (17)*注記

もっと見る

参考文献 (10)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ