Viscoelastic distortion in asymmetric plates during post curing

被引:26
作者
Benavente, Maria [1 ]
Marcin, Lionel [2 ]
Courtois, Alice [1 ]
Levesque, Martin [1 ]
Ruiz, Edu [1 ]
机构
[1] Polytech Montreal, Dept Mech Engn, Montreal, PQ H3C 3A7, Canada
[2] Safran Tech, F-78772 Magny Les Hameaux, France
关键词
3-Dimensional reinforcement; Creep; Residual/internal stress; Resin transfer molding (RTM); RESIDUAL-STRESS DEVELOPMENT; CURE CYCLE; LAMINATED COMPOSITES; EPOXY-RESIN; OPTIMIZATION; MECHANISMS; PARTS;
D O I
10.1016/j.compositesa.2017.09.017
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This study aims at understanding the geometrical instability triggered by the residual stresses generated during the manufacturing and post-curing of composites plates. Asymmetric plates with a [0/90] configuration were manufactured by Resin Transfer Molding (RTM). Manufactured plates were reheated free standing in an convection oven to study their behavior at high temperatures. Digital image analysis was used to monitor the plates curvature evolution with time and temperature. The experimental results of this work demonstrates the impact of the resin's viscoelastic behavior on the geometrical distortion generated by residual stresses in asymmetric plates at high temperatures. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:122 / 130
页数:9
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