广东费飘职业故本学院 Guangdong Inatitute of Textile Technology Fiber Properties and Identification a Stress-strain curves ■ Yield point a The point at which the stress-strain curve flattens or changes its slope significantly Yield point Yield pointFiber Properties and Identification  Stress-strain curves ◼ Yield point  The point at which the stress-strain curve flattens or changes its slope significantly   0 Yield point   0 Yield point