Impact Tests of Materials

Impact Tests of Materials - Impact Tests of Materials Jenna...

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Impact Tests of Materials Jenna Puckett North Carolina State University Department of Materials Science and Engineering MSE 210 Lab Report Section 202 Zach Lampert 2/29/08 Abstract
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Introduction Fracture mechanics are important in materials engineering. Knowledge of method of fracture and moment of fracture are important parameters for successful design. Metals normally fracture in a ductile manner, but processing like cold-rolling and environmental factors like a low temperature, high strain rate, a triaxial state of stress and nuclear radiation can cause brittle failure. Brittle failure is the sudden fracture of a material with little or no plastic deformation. This experiment investigates impact properties of different metals and alloys, and the relationship between impact properties and temperature. The structure of metals can influence their yield strength, fracture strength, and the influence of temperature on their materials properties. The yield strength of BCC structure materials increases greatly with temperature (3-8 times original, from 77K to 300 K)), while the yield strength of FCC materials approximately doubles. The ductile to
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This lab report was uploaded on 03/31/2008 for the course MSE 210 taught by Professor Reynolds during the Spring '08 term at N.C. State.

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Impact Tests of Materials - Impact Tests of Materials Jenna...

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