麻省理工学院：《polymer engineering》p4 8

3.064Quiz10/10/03 Sample questions 1. What is the glass transition temperature of a polymer How can it be measured? What molecular characteristics determine its value Illustrate by giving the chemical structure and Tg for polyethylene polyvinyl chloride and polystyrene

3.064 Quiz 3- Sample Questions 1. Consider a unidirectionally reinforced fiber-matrix composite a)What elastic constants(relative to the fiber and transverse directions )are needed to describe this material?

第10章木材 本章为自学内容,作一般性了 解。要求:了解木材的主要性能 及应用即可

uiz2(11/7/03)-sar esti。ns rse and fiber-directi moduli for a transversely isotropic composite lamina 2. Plot and explain the variation of fiber-direction strength of a unidirectionally-reinforced lamina as a function of fib fraction

麻省理工学院：《polymer engineering》p7 6

麻省理工学院：《polymer engineering》p4 6

麻省理工学院：《polymer engineering》p4 16

麻省理工学院：《polymer engineering》p4 11

麻省理工学院：《polymer engineering》p2 23