CURE CYCLE OPTIMIZATION FOR THE REDUCTION OF PROCESSING-INDUCED RESIDUAL-STRESSES IN COMPOSITE-MATERIALS

被引：167

作者：

WHITE, SR ^{[1
]}

HAHN, HT ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT MECH AEROSP & NUCL ENGN,LOS ANGELES,CA 90024

来源：

JOURNAL OF COMPOSITE MATERIALS | 1993年 / 27卷 / 14期

关键词：

COMPOSITES; PROCESSING; CURING; MANUFACTURING FABRICATION PROCESSING; RESIDUAL STRESSES; PROCESS MODELING;

D O I：

10.1177/002199839302701402

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The control and reduction of processing-induced residual stresses has been investigated by modifying processing conditions for a graphite/BMI composite material. The effects of dwell temperature, dwell time, cool-down rate, cool-down pressure, and postcure on residual stresses were investigated using unsymmetric cross-ply laminates. The effects on transverse mechanical properties were also measured. Experimental results have shown that residual stresses can be reduced by as much as 25-30% while retaining or enhancing transverse mechanical properties by curing at lower temperatures for longer times or utilizing an intermediate low-temperature dwell in three-step cure cycles. Overall process cycle times are not lengthened for three-step curing.

引用

页码：1352 / 1378

页数：27

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