Elastic-plastic and failure properties of a unidirectional carbon/PMR-15 composite at room and elevated temperatures

摘要: Abstract A series of off-axis tensile tests at room and elevated temperatures have been conducted up to 316°C (600°F) determine the elastic plastic properties a unidirectional carbon/PMR15 composite as function temperature. The transverse shear strengths temperature also determined. effect specimen preparation process (type machining) on strength has evaluated. It shown that (with exception Poisson ratios ν 12 21 ), plastic, are significantly affected by temperatures. demonstrated quality machining can noticeably influence normal data Even if is very high, failure specimens occur either in gage or grip sections. At temperature, all failed areas influencing measurements. However, type does not affect could only be estimated extrapolating vs curves