先进拉挤工艺下工字梁固化温度场的二维数值模拟

发布时间：2018-03-31 05:06

  本文选题：工字梁　切入点：先进拉挤工艺(ADP)　出处：《玻璃钢/复合材料》2017年04期

【摘要】：碳纤维增强复合材料在固化成型过程中,其温度与固化度的变化历程具有强耦合关系,以含有非线性内热源的瞬态热传导方程为基础,利用有限容积法编写了计算程序,研究了以T300/环氧预浸料为材料的某复合材料工字形地板梁在先进拉挤工艺下的温度、固化度的变化历程。结果表明:该工字形地板梁在厚度为5.9 mm时,固化过程中的温度场和固化度场基本可以认为是均匀的,其厚度不会对固化质量产生较大影响;当该工字梁的厚度达到11 mm时,制件最高温度比模具温度高出了10.7℃,这时制件厚度已对制件的固化质量产生较大影响。
[Abstract]:During the curing process of carbon fiber reinforced composites, the variation of temperature and curing degree has a strong coupling relationship. Based on the transient heat conduction equation with nonlinear internal heat source, the calculation program is compiled by the finite volume method.The change process of temperature and curing degree of a composite I-shaped flooring beam with T300 / epoxy prepreg under advanced pultrusion process was studied.The results show that when the thickness of the I-shaped floor beam is 5.9 mm, the temperature field and curing degree field in the curing process can be considered to be uniform, and the thickness of the I-shaped floor beam will not have a great effect on the curing quality, and when the thickness of the I-shaped floor beam reaches 11 mm,The maximum temperature of the parts is 10.7 鈩，

本文编号：1689257