Load distributions along a short-fiber in discontinuous fiber composite using advanced modified shear-lag analysis

[[abstract]]本文建議用一種二維的複合材料短纖維 模型,來模擬單向的複合材料纖維材分布。用 高等的剪力分析導出微分方程式,解得沿著短 纖維的應力分布狀況。其特色是除了基礎材料 和纖維假設為完美結合之外,短纖維端點間的 基材亦承受軸向負荷,就如纖維材的一部分。 更進而可解得平均的應力分布,其公式可應用 在預測內部材料的阻尼值。[[abstract]]The present paper proposes a three-fiber model represents a two dimensional aligned short-fiber arrangement in the matrix material. An advanced shear-lag analysis is used and modified to develop analytical relations for the stresses along the short-fiber length. This analysis assumes perfect bonding between the fiber and the matrix materials, and allows for the matrix material to partially sustain axial loads. The average stress in a representative fiber length can be obtained through averaging formula.[[sponsorship]]中華民國力學學會; 中央大學; 教育部[[conferencetype]]國內[[conferencedate]]19901214~19901215[[conferencelocation]]中壢市, 臺