运用声发射技术研究了T300/648环氧。BF3MEA体系铺层为[0/].4s(=0,4590)的几种叠层板以四种不同冷却速度(0.5. 1.0. 1.5, 2.0℃/min)固化成形产生的残余应力.结果表明，声发射能够反映固化成形过程中复合材材内部所发生的变化，并能定性地反映固化成形过程中产生成的残余应力的大小.用显微镜观察了叠层板断面，没有发现存在孔隙和裂纹。夸曲和层剪强度受冷却速度的影响不明显。这表明，在本工作范围内，由不同铺层和冷却速度引起的残余应力还不足以引起叠层板内产生裂纹以致显著影响其力学性能。

Thermal residual stresses introduced during curing of carbon/epoxy composites were investigated with the use of acoustic emission(AE)technique.The laminates of T300/648 epoxy.BF3MEA with different ply-angle[0/].4scopled at different rates(0.5. 1.0. 1.5, 2.0℃/min)were used as specimens.AE monitoring during curing shows the capability of identifying the structural .changes of composites in the entire curing cycle,It is observed that AE can also be used to determine the residual stresses introduced in the curing cycle qualitatively.Microscopic observations of the cross-sections of the laminates indicate that there is no void and micro-crack in the laminates.The results of flexual and interlaminar shear strength show that the influence of cooling rate on the mechanical properties of laminates is not obvious.Therefore, it can be seen that the residual stresses resulting from different ply-angles and cooling races are not big enough to make cracks in the laminates, so the mechanical properties of the laminates are not remarkably affected by the ply-angle and cooling rate under the condition of this work.