复合材料T形长桁成型模具变形分析

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Deformation analysis of Composite material T-Stringer forming mold

PAN Fazhan， LIU Min， ZHENG Wei， YUE Ming （AVIC Xi'an Aircraft Industry Group Co. Ltd.， Xi'an 710O89， Shaanxi， China）

Abstract： The paper takes the forming mold for composite T-stringer as the research object. Based on the theory of thermo-elasticity， the finite element model （FEM） of the mold is established to simulate and analyze the deformation of the mold inside the autoclave， identifying the weak points in the initial design. Improvements and optimizations to the mold structure are made in terms of force transmission paths， stiffening structure， and mold materials， significantly reducing the deformation of the mold and ensuring the accuracy requirements for composite component forming.

Key words： composite material； forming mold; finite element moldel（FEM）; deformation;autoclave forming

0 引言

复合材料凭借其高比强度、高比模量、抗疲劳等优越的力学性能和其材料本身独特的可设计性，在航空航天领域得到了广泛的应用。（剩余6942字）