Mathematical Model of Autoclave Curing of Epoxy Resin Based Composite Materials

Abstract

Polymer matrix composites using thermosetting resins as the matrix are increasingly finding use in several applications. Process modeling describing the governing curing has played an important role, in improving the fundamental understanding and development of composite fabrication techniques. In present work, the thermokinetic involved in the autoclave curing of fiber-reinforced epoxy has been studied by means of a computer program, using the transient heat conduction equation coupled with kinetic equation, and the initial and boundary conditions. In the analysis the cure assembly is assumed to consist of a tool plate, composite laminate. The temperature distribution and the degree of reaction are obtained as a function of position and time. ‫ﻤﺘﺭﺍﻜﺒﺎﺕ‬ ‫ﺇﻨﻀﺎﺝ‬ ‫ﻟﻌﻤﻠﻴﺔ‬ ‫ﺍﻟﺭﻴﺎﻀﻲ‬ ‫ﺍﻟﻤﻭﺩﻴل‬ ‫ﺍﻷﻴﺒﻭﻜﺴﻲ‬ ‫ﺍﻻﻭﺘﻭﻜﻠﻴﻑ‬ ‫ﺠﻬﺎﺯ‬ ‫ﻓﻲ‬ ‫ﺍﳋﻼﺻﺔ‬ ‫ﻜﺒﻴﺭﺍ‬ ‫ﺘﻁﻭﺭﺍ‬ ‫ﺍﻻﻴﺒﻭﻜﺴﻴﺔ‬ ‫ﺍﻟﻤﺘﺭﺍﻜﺒﺔ‬ ‫ﺍﻟﻤﻭﺍﺩ‬ ‫ﺍﺴﺘﺨﺩﺍﻡ‬ ‫ﻴﺸﻬﺩ‬. ‫ﻟﻌﻤﻠﻴﺔ‬ ‫ﺍﻟﺭﻴﺎﻀﻲ‬ ‫ﺍﻟﻤﻭﺩﻴل‬ ‫ﻭﻴﻠﻌﺏ‬ ‫ﺍﻹﻨﻀﺎﺝ‬ ‫ﻓﻬﻡ‬ ‫ﻓﻲ‬ ‫ﻜﺒﻴﺭﺍ‬ ‫ﺩﻭﺭﺍ‬ ‫ﻫﺫﻩ‬ ‫ﻭﺘﻁﻭﻴﺭﻫﺎ‬ ‫ﻭﺘﺤﺴﻴﻨﻬﺎ‬ ‫ﺍﻟﻌﻤﻠﻴﺔ‬. ‫ﺩﺭﺠﺎ‬ ‫ﺒﺤﺴﺎﺏ‬ ‫ﻴﻘﻭﻡ‬ ‫ﺭﻴﺎﻀﻲ‬ ‫ﻴل‬ ‫ﻤﻭﺩ‬ ‫ﺃﻴﺠﺎﺩ‬ ‫ﺘﻡ‬ ‫ﺍﻟﺯﻤﻥ‬ ‫ﻤﻥ‬ ‫ﻜﺩﺍﻟﺔ‬ ‫ﺍﻹﻨﻀﺎﺝ‬ ‫ﺩﺭﺠﺔ‬ ‫ﻭ‬ ‫ﺍﻟﺤﺭﺍﺭﺓ‬ ‫ﺕ‬ ‫ﺍﻟﻁﺎﻗﺔ‬ ‫ﻤﻌﺎﺩﻟﺔ‬ ‫ﺤل‬ ‫ﻋﻠﻰ‬ ‫ﺍﻟﻤﻭﺩﻴل‬ ‫ﻫﺫﺍ‬ ‫ﻭﻴﺸﻤل‬ ‫ﺍﻟﻤﻭﻀﻊ‬ ‫ﻭ‬ (un steady state energy equation) ‫ﺍﻟﻤﺘﻭﻟـﺩﺓ‬ ‫ﺍﻟﺤﺭﺍﺭﺓ‬ ‫ﺘﻤﺜل‬ ‫ﺤﺩﻭﺩ‬ ‫ﺇﻀﺎﻓﺔ‬ ‫ﻤﻊ‬ generated heat) (‫ﻨﺘﻴﺠـﺔ‬ ‫ﺍﻻﻴﺒﻭﻜﺴﻲ‬ ‫ﺘﺼﻠﺏ‬. ‫ﺍﻟﺘﻔﺎﻋل‬ ‫ﺩﻴﻨﺎﻤﻴﻜﻴﺔ‬ ‫ﻤﻭﺩﻴل‬ ‫ﻋﻠﻰ‬ ‫ﺍﻟﺭﺌﻴﺴﻲ‬ ‫ﺍﻟﻤﻭﺩﻴل‬ ‫ﻭﻴﻌﺘﻤﺩ‬ ‫ﺍﻷ‬ ‫ﻴﺒﻭﻜﺴـﻲ‬ ‫ﺍﻟﺘﻔﺎﻀﻠﻲ‬ ‫ﺍﻟﻤﺴﺢ‬ ‫ﺠﻬﺎﺯ‬ ‫ﺒﺎﺴﺘﺨﺩﺍﻡ‬ ‫ﺩﺭﺍﺴﺘﻪ‬ ‫ﺘﻡ‬ ‫ﻭﺍﻟﺫﻱ‬ .